Fuel Economy

[eTiMaGo]

BTW, this is the 1,000th post of this thread:smile::laugh::biggrin:!

*gives swng a cookie*

Well done :tongue:

[swng]

Thank you Moderator! Thank you!
:bow: :bow:

[Racer X-8]

I could always delete three of my previous posts...:evil:

[swng]

:laughabove: :redface: :tongue: :help:

[Blenjar]

fries

-- Blen

[leowhy]

:laughabove: :redface: :tongue: :help:

cheer up... u only loose a cookie only what? :biggrin:

[swng]

Don't worry! I enjoy seeing fellow members showing their good sense of humor.
Just hope no one gets carried away and goes off topic too far because the moderator can be watching:wink:!

[Jem_hadar]

Got 27 MPG (US) again.

[swng]

Reportedly, the Yaris has been ranked among the top most fuel efficient cars and awarded accordingly by the Fed at the recent Torronto Auto Show. Beneath is the link to the relevant video. If you are interested, click the link, wait a few seconds for the announcer/commercial to finish and the show to start, then move the seek button under the screen toward the end of the TV program (i.e. the 51th minute of the 58-minute show) to skip the lengthy materials irrelevant for this post and you will see the Yaris right there.
http://www.robtv.com/servlet/HTMLTemplate/!robVideo/robtv0726.20070216.00048000-00048092-clip1/h/220asf///
Interesting enough, the Honda Fit, reportedly, won a similar award on the same occasion in the Station Wagon Class.

[ChinoCharles]

...in the Station Wagon Class.


'Nuff said. :wink:

[swng]

'Nuff said. :wink:

Yes:clap: :clap: :laugh: :laugh: :bellyroll: :bellyroll:!!!!!!!!

[dansides]

121 mi trip run at about 55 to 60 for 60miles and 50 to 55 for 60 mi got 37.8mpg scan gauge.:eyebulge: highest reading i saw was 43.1 mpg on first 60 miles :burnrubber:

[nsmitchell]

I've been too embarassed lately to post my MPG numbers. Well they have been around 27-29MPG. It is pretty cold in the mornings. I drive it nice and easy while the cool light is on. I stomp on is some after that. Still this sucks!:cry:

[swng]

For regular visitors to this thread, if you are already too familiar with advices like these:http://www.ftc.gov/bcp/conline/pubs/alerts/fuelalrt.pdf, then please try reading these:http://oee.nrcan.gc.ca/transportation/personal/maintaining/autosmart-car-care.cfm?attr=8#monthly.
If you are already too familiar with all the linked advices, please post here more because I, and probably many other members, will like to share your knowledge and experience:smile:.

[eTiMaGo]

Man.... 200 kilometers to go down to half a tank, and I'm now at 250 and only have 2 bars left, and I've been driving in much the same manner... weird... I usually refuel at this point, but I'll wait for one bar this time.

[leowhy]

Man.... 200 kilometers to go down to half a tank, and I'm now at 250 and only have 2 bars left, and I've been driving in much the same manner... weird... I usually refuel at this point, but I'll wait for one bar this time.

i consider this number is not surprising as this has been my readings so far for 100% city driving...

[Razr]

When I drive: 12.24 KM/L, 8.17 L/100km, 28.76 MPG (US)
When the wife drives: 14.74 KM/L, 6.78 L/100km, 34.65 MPG (US)

Same basic driving circumstances (80% city, 20% highway), just a slightly different driving style :P

There's effectively no driving law enforcement here at all, and even if you did get clocked speeding it's a $10 fine ($5 if you pay at the "window") with no demerit point system. I'm just taking advantage of it all before they change their minds :)

[Jem_hadar]

When I drive: 12.24 KM/L, 8.17 L/100km, 28.76 MPG (US)

There's effectively no driving law enforcement here at all, and even if you did get clocked speeding it's a $10 fine ($5 if you pay at the "window") with no demerit point system. I'm just taking advantage of it all before they change their minds :)

WOW! Fucking awesome in Thailand. Jesus christ. :drinking:

[Racer X-8]

WOW! Fucking awesome in Thailand. Jesus christ. :drinking:Mmmm...well, speaking of JC, just don't go there speaking too favoritively of any monotheocratic beliefs, and He's not one of them.

[uncleyaris]

if off topic, i hate the digital gas gauge. i would like to see a gauge which shows a better accurate level. a one bar am I really one bar or sort of second bar, know what i mean!

[Jem_hadar]

Mmmm...well, speaking of JC, just don't go there speaking too favoritively of any monotheocratic beliefs, and He's not one of them.

haha! And I'm an passionate atheist too... i could cause some problems!

[Razr]

WOW! Fucking awesome in Thailand. Jesus christ. :drinking:

Well, it has it's downsides too - the lack of any enforcement of any driving laws, and readily purchasable driving licenses breeds a different type of driver - one that has NFI! Driving here is more often than not survival vs. enjoyment LOL. Thus, I take every available oppty to enjoy driving :)

As for :drinking:, well apart from the two times a year they put on a DUI blitz (during the Christian and Thai new years), the rest of the time the only test you'll be put to is whether you make it home in one piece or not. Can make for an interesting mobile obstacle course at times..

Anyways, that's just the tip of the iceberg when looking at what constitutes driving fun in Thailand - I haven't even started on the busses and trucks that know no lanes, or the drivers that insist on driving up the shoulder the wrong way, or the motorcycles that have no idea you need more lane space, and that when you are travelling 80KM/hr faster than them they become terribly difficult not to kill.. etc, etc.. the list goes on :)

[eTiMaGo]

Amen to that :biggrin:

You forgot... 5 people on a motorcycle... 9 year old kids driving motorcycles... People driving the wrong way on a divided 4-lane highway, just so they don't have to go a couple kilometers further and U-turn... 2-lane roads that are really 1-lane because people park in the outer lane... Heck, even police cars and motorcycles driving in total disrespect of road rules...

And something maybe a little more specific to Phuket, buses/trucks/vans going up a hill road at 5km/h and sometimes stalling, always fun when you're behind them... Or even people in normal automatic cars and pickups who have no idea how to go up a hill and end up crawling... That really annoys me when I'm back down there, and it's fun roaring past them in my mom's car or on a bike :laugh:

It's funny, when my parents and I go back to France, we always drive extremely defensively, to the amusement of other family members... Like,, there's a car up ahead at a stop sign, who's going to merge into your road. By instinct we slow down and get ready to slam the brakes for when he cuts you off... But in a "civilized" country, that's not required, the guy will patiently wait his turn... Uncanny...

Of course, the death toll for road accidents here? Not pretty at all.

But anyway back on topic, I'm happy, I fueled up today, just ran the calculations and that was 24MPG, better than the 18-19MPG of my previous tanks :biggrin:

[Racer X-8]

if off topic, i hate the digital gas gauge. i would like to see a gauge which shows a better accurate level. a one bar am I really one bar or sort of second bar, know what i mean!
One bar means stop for gas. It does flash faster and faster as you approach ultimate let-down-ism (when you walk).

[superjens]

I almost got 40 MPG on my last tank; 39.639 to be exact. This was 50/50 highway/city, tires at 44 PSI, very light footed with lots of coasting in neutral. My lifetime average is 33 so far.

[swng]

Last tank gave me about 40.24 mpg (Imperial) or 33.3 mpg (US).
City/highway was about 30/70. Average load: 2 people plus personal belongings. Driving style: Synchronize with traffic.
The above mpg numbers are close to my long term averages.

Last report at Post #991, Page 67.

[kc8hyg]

first fill up yesterday at 120 miles, 30 miles per gallon,not bad for a new engine and winter weather. kc8hg

[ECHOKnight2000]

This past week I broke my own record and got 46mpg!! Twice!! I was like wow! I wasn't even trying either. I drive a 80 mile commute every day (combined), I usually take it easy, I drive around 65mph, try to stay consistant speed, accelerate slow. I'm wondering if it may be the weather as it has gotten warmer, no not warm but certainly better than before. I wonder with such a long commute and spring coming I might be able to hit 50mpg?That would be cool, and I don't have a hybrid! Although I know diesel engines in Europe and other places get 60mpg, for the small cars there but this is a gas engine and that is pretty good for a gas engine that isn't hooked up to an electric motor.:thumbsup:

[leowhy]

well, well ,well, i guest we fellows in malaysia will not be able to get that great Fuel Efficiency compare to you people staying in Europe/US/Canada regions as we do not have long routes & we travel in Cities more often... :(

[eTiMaGo]

well, well ,well, i guest we fellows in malaysia will not be able to get that great Fuel Efficiency compare to you people staying in Europe/US/Canada regions as we do not have long routes & we travel in Cities more often... :(

Hahha yeah that's true.. For this region a 2-hour drive is almost considered a road trip!

[Carvin'07]

I was not being too cautious with mileage the last little while. It was on average -15 degrees C for a few weeks here, on winter tires, and with lower pressure (about 30psi for better contact patch). I acheived 30.2mpg US driving 70 hwy / 30 city shifting at 4500rpm (the car is a little faster in really cold weather, so it is more FUN).

Last tank I finally toned down my driving. I started shifting at 2500 and really took it easy. I acheived 36.4 mpg (70hwy/30city). It's ok I guess.

[shanks]

My first fill up was after 430km so about 8.8L/100km or 31.98MPG all city driving. I hope it gets better. I really want to break the 600km mark.


So WHY does your fuel economy get better? is it about gaskets and compression only?

[jdubau55]

Hahha yeah that's true.. For this region a 2-hour drive is almost considered a road trip!


I do consider that a road trip!!!

[Jem_hadar]

I do consider that a road trip!!!

lol, thats a normal trip to toronto for me every other weekend to hit up the afterhours clubs in teh city and see my friends.

[YANGSTER]

lol, thats a normal trip to toronto for me every other weekend to hit up the afterhours clubs in teh city and see my friends.

in that case, i'm having road trips 5 days a week.

[acrbill]

My Yaris just ticked over 1,000 miles. So far my average through 4 fill ups is 26.79 MPG. Mind you that the weather has been cold lately and I have been working 6 miles from home for a few months now. That is also 98% true city driving.

07 LB 5spd

[zerofloat]

First tank 38.5 mpg US. Mostly highway flat cold windy and SNOW.:wink:

[eTiMaGo]

Just refueled, 24.13MPG, the best so far by a tiny margin.

[Razr]

Fuel economy is trending downwards here - after todays fill up I got 28MPG.

Could have something to do with the atrocious pollution here ATM though - currently 6x "safe" limits, and more than 10x that of Bangkok - anyone that's been to BKK before will have an idea of how bad it actually is! :(

[nsmitchell]

I just put in Amsoil Performance Improver (PI). I bought a case of it for around $6.00/bottle (16oz.) You put in 6 oz to begin with, then 1 oz per 10 gal after that. I'll let yall know how it turns out. I can already tell it is getting overall a "buttery smooth" feel to the engine.

[ECHOKnight2000]

I reached my highest mpg to date on Wednesday on the way to work. 49mpg!!! I hope and wonder if I will break 50mpg when the weather gets warmer, I've read other ECHO owners getting that much, I even have an automactic so that's even more impressive. I was just impressed!:drinking: :headbang:

[jdubau55]

The first tank I computed was around 36 MPG. Went a lil over 360 miles to like 9.6 gallons I think.

[popeetheus]

I got 35 mpg my first tank without doing anything special, other than not hot-rodding like a jackass. This is with mostly rural and city driving.

[acrbill]

MY MPG is improving as I put more miles on the car.

With 1300 miles on the car I just got my best MPG 29.7
the lifetime average is 27.38

[daq421]

MY MPG is improving as I put more miles on the car.

With 1300 miles on the car I just got my best MPG 29.7
the lifetime average is 27.38


This is just so odd, I'm reading posts like this and I'm beginning to think I got a "magic" yaris.. I never get less than 33mpg, ever! And my over all average is 34.6mpg. I've got 11,564 miles on the car and have been keeping track. I drive the crap out of the lil' car... 80Mph (+) on the freeway and working the twisties pretty hard on my daily return commute from work..

It's just really weird the wide variance in mileages, other owners are getting.
-Peter

[acrbill]

This is just so odd, I'm reading posts like this and I'm beginning to think I got a "magic" yaris.. I never get less than 33mpg, ever! And my over all average is 34.6mpg. I've got 11,564 miles on the car and have been keeping track. I drive the crap out of the lil' car... 80Mph (+) on the freeway and working the twisties pretty hard on my daily return commute from work..

It's just really weird the wide variance in mileages, other owners are getting.
-Peter

Currently my drive to work is only 6 miles one way. The car barely has time to warm up before the ride is over. That kills mileage.

[ChinoCharles]

I don't get out of second gear on my commute to work. Be jealous. :wink:

[Jem_hadar]

I don't get out of second gear on my commute to work. Be jealous. :wink:

HATE THAT! Fack, god do I ever hate traffic like that

[ChinoCharles]

No... its across the street. :bellyroll:

[Pavel Olavich]

My 3rd tank full of gas....my 2007 LB got 31.4 mpg....motor has under 1,000 miles so it is still tight...

[Black Yaris]

I don't get out of second gear on my commute to work. Be jealous. :wink:

I don't think I even got it out of first from your house to your work :)

[hystria]

My 3rd tank full of gas....my 2007 LB got 31.4 mpg....motor has under 1,000 miles so it is still tight...

in fact it's not a matter of engine - it will broke-in within 1-200 miles
a new O2 sensor has to be "burned" in order to return good mileage, the higher the engine is revved the hotter the O2 gets and the fastest it will broke-in

[Nautical Yaris S]

i average between 33 and 38 mpg in my Yaris, depending on how much city driving i do. my best so far was 389 miles in 10.06 gallons of fuel. i havent taken the car on any trips to the coast or Southern Cali, which i am positive I will see 400+ miles

[stuffy]

I don't get out of second gear on my commute to work. Be jealous.

so you drive across the street to go to work?

[churp]

Got 3,300m on my automatic liftback and get 35 normally....20 miles to work....but on a recent 900 mile trip got 31/32 but drove 75 to 80mph all the way. I keep track of every drop I've put in it, cause I expected better but not too disapointed.

[nsmitchell]

I got 31 MPG, still driving hard. This is my first result after using Amsoil PI. A little better than the 27-28MPG I was getting.

[Yaris Revenge]

No... its across the street. :bellyroll:

Then you outta' be getting 0 mpg, because you should be walking. :biggrin:

~YR

[ChinoCharles]

No sidewalks, and as much as I love trudging through muddy ditches, I usually drive allllll the way across the street.

Then when I leave and I'm all pissed off, I can just hop in and cruise out to the CVNP and cruise. Eases the mind.

[zerofloat]

second tank 38.48 mpg:thumbup: , sure beats 8.9 last week in the motorhome.

[BailOut]

Great job, zerofloat! That's very close to my second tank (38.96 MPG).

I just fueled up for my 5th time today and got 46.40 MPG. :smile:

Come join me at CleanMPG.com and we'll get you up in the mid-40's without breaking a sweat!

On a different note I know your MPG pain with the larger vehicles. I used our Tacoma to haul our boat (4,800 pounds with fuel and trailer) over the mountain for a fishing trip the weekend before last and got just 13.5 MPG. :frown: That's a damn sight better than most folks could do on that trip (my Father-in-law only gets about 7-8 MPG on that haul with his weak sauce Tahoe) but I still feel guilty about it. TerraPass, here I come!

[Unknown_Epiphany]

My last tank was a combined 40.08 MPG with an auto Sedan.

[5spBlazer]

Great job, zerofloat! That's very close to my second tank (38.96 MPG).

I just fueled up for my 5th time today and got 46.40 MPG. :smile:

Come join me at CleanMPG.com and we'll get you up in the mid-40's without breaking a sweat!

On a different note I know your MPG pain with the larger vehicles. I used our Tacoma to haul our boat (4,800 pounds with fuel and trailer) over the mountain for a fishing trip the weekend before last and got just 13.5 MPG. :frown: That's a damn sight better than most folks could do on that trip (my Father-in-law only gets about 7-8 MPG on that haul with his weak sauce Tahoe) but I still feel guilty about it. TerraPass, here I come!



hey bailout, im on cleampg too.

Armavir

[BailOut]

Heya, Armavir!

I'm curious... All I see on CleanMPG.com is your 2006 Honda Civic. Are you going to log your Yaris on there, too?

[nsmitchell]

Just filled up. 41.5MPG. Mostly HWY at 65MPH. My best numbers yet!:biggrin:

[BailOut]

We all should start logging our mileage on CleanMPG.com. Let's get the word out on the Yaris' fuel economy potential.

[ChinoCharles]

We all should start logging our mileage on CleanMPG.com. Let's get the word out on the Yaris' fuel economy potential.

That isn't the "potential" we're unsure about! :cool:

[yrsdrgn]

That isn't the "potential" we're unsure about! :cool:

O man, I totally agree with you on that one buddy :laugh: :laugh:

[churp]

Don't know about this "potential" thing.....after 3,300 miles finally reached a top of 36.6 mpg driving what I feel is conservative (although I do have an automatic). I am 56 but damn if I'll drive like I'm 80 just to break 40 mpg!!!

[Racer X-8]

The government estimated mileages leave no room at all for any agressive driving at all. None. If you don't drive it very gently, you won't get the 39mpg. 36.6 is above average for any kind of mixed driving. If it was 100% highway, well...

three main things I've noticed will drag the Yaris mpg down :
1) Hotdogging. Enjoy it, but you will pay in reduced mpg. You knew it, come on.
2) Cold temperatures drag the mpg down during the cold engine (rich mix) time, drops mpg 1 to 1.5 less.
3) Using the AC drops mpg 1 to 1.5 less. It really is a little engine...

[nsmitchell]

The government estimated mileages leave no room at all for any agressive driving at all. None. If you don't drive it very gently, you won't get the 39mpg. 36.6 is above average for any kind of mixed driving. If it was 100% highway, well...

three main things I've noticed will drag the Yaris mpg down :
1) Hotdogging. Enjoy it, but you will pay in reduced mpg. You knew it, come on.
2) Cold temperatures drag the mpg down during the cold engine (rich mix) time, drops mpg 1 to 1.5 less.
3) Using the AC drops mpg 1 to 1.5 less. It really is a little engine...
4) Drive Thru Fast Food. Talk about a gas waster. Imagine a line of Hummers waiting for their Big Macs!:biggrin:

[Pavel Olavich]

5) Jack Rabbit starts, or even starts that are a bit more then normal
6) Warming up the car in the mornings.

[ChinoCharles]

Popular Science shot the "warming up the car" myth out of the sky years ago. Just don't wail on it before its warm. Actually, letting the car sit to warm up will hurt your mileage on newer cars. This isn't the case on small blocks, but the 1NZ is so far from that its comical.

[churp]

I'm happy with the 36.6...it fits well with the revised EPA figures for next year. Quite a while back I had a '71 Honda 600 coupe which I got 30 mpg any way I drove and was happy, even though I did see one get 60mpg in a economy rally. I just feel the driving habits required to get the 42+ mpg in my area would be unsafe....rolling hills and winding roads have a tendancy to make impatient people pass where they shouldn't

[Racer X-8]

4) Drive Thru Fast Food. Talk about a gas waster. Imagine a line of Hummers waiting for their Big Macs!:biggrin:
Ooooh, good one! I almost always turn off my engine. Why not? Is it too much of an effort to turn the key to start it again? Or, is there some kind of stigma where it's not American? The American way is to let your engine burn gas needlessly while you have to wait? Nah, people are so lazy-assed anymore, they don't even want to have to turn a freakin key anymore.

I also drop my lights to parking lights - it helps the battery, and, even though I'm not in some jacked-up macho-vehicle that blares its headlights straight-on into the interior of the poor person's car in front of me - even though I'm not, I'll bet they are thankful of it, cuz I sure as all getout hate it when I'm wound-up being that poor person, with some suckwad sitting in some jacked-up swamp buggy behind me!!!!!!! with what seems like 4 or 6 headlights - all highbeam - shining 4 feet directly behind the back of my friggin head!!!!!!!!!!!!!!!111 :mad:

Getting back to lazy-assed people, what is it with kids nowadays? It seems as though they all leave their car running outside when they don't anticipate staying any more than 3 minutes. Then, ten minutes - fifteen minutes later, they're still inside while their car is outside STILL RUNNING???????? That is SO STUPID!!!

[Pavel Olavich]

Popular Science shot the "warming up the car" myth out of the sky years ago. Just don't wail on it before its warm. Actually, letting the car sit to warm up will hurt your mileage on newer cars. This isn't the case on small blocks, but the 1NZ is so far from that its comical.

True...these days the need to warm up a car is no existent....why people do this, and waste gas is beyond me...the car certainly don't need it, so long as you don't drive hard while it's cold.

[Chris07LB]

True...these days the need to warm up a car is no existent....why people do this, and waste gas is beyond me...the car certainly don't need it, so long as you don't drive hard while it's cold.

Some people dont wanna freeze their ass off in the middle of the winter, when they have to drive.

[Jem_hadar]

4) Drive Thru Fast Food. Talk about a gas waster. Imagine a line of Hummers waiting for their Big Macs!:biggrin:

Haha, this one gets me! I'm sure, now, thats its to a reasonable degree responsible for my low-end gas milage I've been getting.

I'm in a Timmy's line up like EVERY morning to get a coffee and baggel... so what... thats aleast 5 mins in a drivethru, 5 days a week... thats bound to be dragging down the mileage im getting!

[Pavel Olavich]

Haha, this one gets me! I'm sure, now, thats its to a reasonable degree responsible for my low-end gas milage I've been getting.

I'm in a Timmy's line up like EVERY morning to get a coffee and baggel... so what... thats aleast 5 mins in a drivethru, 5 days a week... thats bound to be dragging down the mileage im getting!

Fix the bagel and coffee at home and take it with ya....that alone will save you tons of $$ over time, and you can use that $$ for better purchases.

[YANGSTER]

Haha, this one gets me! I'm sure, now, thats its to a reasonable degree responsible for my low-end gas milage I've been getting.

I'm in a Timmy's line up like EVERY morning to get a coffee and baggel... so what... thats aleast 5 mins in a drivethru, 5 days a week... thats bound to be dragging down the mileage im getting!

u lazy bum....why cant u just park ur car and walk-in....i always find the line inside is way faster...and u dont have to smell others' exhaust.

[Jem_hadar]

u lazy bum....why cant u just park ur car and walk-in....i always find the line inside is way faster...and u dont have to smell others' exhaust.

Actually no. Its on a retarded busy corner by two highschools and a main street. There is no parking real estate present AT ALL. You gotta drive thru or dont go at all.

Unless you wanna park over a block down the road. Ya right, like thats happening. This one's Its on my way to work. I'm not driving outta my way to another so i can simply walk in. Convenience WINS!


Fix the bagel and coffee at home and take it with ya....that alone will save you tons of $$ over time, and you can use that $$ for better purchases.

True, will save me lots. But NOTHING (to me) beats a Tim Horton's bagel. Making it at home is a weak comparison. The money you save isnt worth the taste I lose.

Plus, i do enjoy a morning coffee to perk me up, and the only coffee i actually dont mind drinking is Timmys.

The stuff at work KILLS me... brutal.

[nsmitchell]

I hate fast food drive thrus. I never use them unless my wife pitches a fit. It's usually faster to go inside.

I also got 39.7MPG on my trip to Durham,NC. I'll be going to Blacksburg Monday. GO VIRGINIA TECH!!!

These highway trips are fun! I'm in no rush (company time) so I do the speed limit to get some awesome mileage, but they pay me $.37/mile. Cha Ching!! This trip I maintained 60-65MPH.

[hystria]

The government estimated mileages leave no room at all for any agressive driving at all. None. If you don't drive it very gently, you won't get the 39mpg. 36.6 is above average for any kind of mixed driving. If it was 100% highway, well...

three main things I've noticed will drag the Yaris mpg down :
1) Hotdogging. Enjoy it, but you will pay in reduced mpg. You knew it, come on.
2) Cold temperatures drag the mpg down during the cold engine (rich mix) time, drops mpg 1 to 1.5 less.
3) Using the AC drops mpg 1 to 1.5 less. It really is a little engine...

It is true, what hurts most is the size of the engine. it can be economic only when driven smoothly. For some reason I enjoy smaller engines... There are even something like 1.3 and 1.0 Yaris engines. Those don't have that much power, somewhere about 60-70Hp I guess, but then who really needs 100Hp :iono:

90% of the time most people will only use 50% of the available engine power

[Black Yaris]

Do you think 20 inch wheels would effect gass mileage?

[BailOut]

Do you think 20 inch wheels would effect gass mileage?
Yes, and in a negative way.

The larger the wheel the more it weighs, and the more energy it takes to make it turn one full revolution.

[eTiMaGo]

Yes, and in a negative way.

The larger the wheel the more it weighs, and the more energy it takes to make it turn one full revolution.

Gonna be a bit of a nitpick, but that's not exactly true, it takes more energy to change the speed of the rotation, basically to overcome inertia. A heavier wheel has more inertia, so more power is needed.

Best way to think of it is a spinning top. When you have a small, light top, it takes very little twist from your fingers to get it spinning. But spin a big heavy top and you really gotta give it some push.

Hope that clears it up!

[Razr]

Just to add to eTiMaGo's post; a heavier wheel will also store more energy, so much of the additional energy it takes to spin it up will be repaid when coasting. The real detriment is in stop/start driving, where you can't capitalize on the intertial payback.

Additionally, a heavier rotating mass will always take more braking force to stop, so that's a constant downside, as in imperical terms, braking is always akin to throwing away energy (well, unless you have a regenerative charging system of course).

[Black Yaris]

just another addition to the whole inertia thing...
http://www.glenbrook.k12.il.us/gbssci/phys/class/newtlaws/u2l1b.html

[Racer X-8]

My wagon wheels are teh bomb!!1! Their extremely narrow, hard patch minimizes rolling resistance. All drag racers use them for their front wheels. So do those experimental low energy cars, like the ones that are all covered in solar panel arrays. Planes. I don't think they'll fit on a Yaris though... The trade-offs, I'm guessing, might be unreliable traction, very low tread life, and an extremely geeky-looking Yaris. Best kept to wagon racing, eh?

[Black Yaris]

http://www.dexigner.com/forum/uploads/post-92-1109336426_thumb.jpg
This should do ya for some good MPG, ultra light weight and very nice ride

[Racer X-8]

90% of the time most people will only use 50% of the available engine powerYup, and as for the other 10% of the time, they don't really NEED to. I'm getting a kick out of all types of people (especially soccar moms) out-doing themselves in their strained efforts to get ahead of my anemic arse, just gunning the piss out of their Explorers to get in front of me (me not even trying), exhaust fumes sickly spewing out their tailpipes enough to choke the life out of any small animal nearby, then slowing down, thinking they have won some kind of fight or something, only to watch me coast on by them, later on down the road... Petty, shallow, insignificant fools that they are... :biggrin:

[Black Yaris]

to tell you the truth I don't care.... when I stuff it, and so does the SUV right next to me on the e-way, I just laugh... I keep up with him and I am using 1/2 the gas... that is all that matter to me :)

[Racer X-8]

Quoted from Men In Black: a classic qoute that I for some reason love to quote!

Edgar/Bug (http://www.imdb.com/name/nm0000352/): Y'know, I've noticed an infestation here. Everywhere I look, in fact. Nothing but undeveloped, unevolved, barely conscious pond scum, totally convinced of their own superiority as they scurry about their short, pointless lives.
Zap-Em Man (http://www.imdb.com/name/nm0861269/): Well, yeah. Uh... don't you want to get rid of 'em?
Edgar/Bug (http://www.imdb.com/name/nm0000352/): Ah... in the worst way

Did you know who played the Bug? hehe... my favorite character!

[BailOut]

Gonna be a bit of a nitpick, but that's not exactly true, it takes more energy to change the speed of the rotation, basically to overcome inertia. A heavier wheel has more inertia, so more power is needed.
Right you are. I guess I oversimplified my answer. It's always a balance between educating someone and leaving them rocking in a fetal position. hehe


Yup, and as for the other 10% of the time, they don't really NEED to. I'm getting a kick out of all types of people (especially soccar moms) out-doing themselves in their strained efforts to get ahead of my anemic arse, just gunning the piss out of their Explorers to get in front of me (me not even trying), exhaust fumes sickly spewing out their tailpipes enough to choke the life out of any small animal nearby, then slowing down, thinking they have won some kind of fight or something, only to watch me coast on by them, later on down the road... Petty, shallow, insignificant fools that they are... :biggrin:
I know your pain! Almost every single day on the uphill side of my over-the-mountain commute someone strives with all their vehicle's might to pass me, riding my tail and swerving like a mad man. When they finally pass I have to roll up my window to try and keep the noxious fumes out, and it also helps to deaden the noise of their screaming engine.

With few exceptions I catch up to them 5 or 10 minutes later on the downhill side. The funny thing is that I'm doing exactly the speed limit in the highest maintainable gear the whole time.

In other words I get from point A to point B just as fast as they do but I do so with much less energy, waste, stress, and wear and tear.

When I drive in the city I get even more exasperated. You'd think someone started handing out trophies for those that get to the next red light first. I can be approaching a solid red light that's going to be red for at least the next 60 seconds and too many times someone - usually in an SUV or big truck - feels the need to pass me in those last 50m before the line of traffic, as if their very presence and force of will can make the light change faster, or like a puppy somewhere will die if they don't get to the back of that line of traffic in the next 5 seconds.

Then they sit there at the light, idling their over-sized engine for the next 60 seconds, getting 0 MPG for that time. The light turns green, that imaginary lady in the tight shorts waves her handkerchief and they're off on the 1/4 mile hoping for a < 10 second run, pretending that the next light isn't 1/8 mile away and also just turned red.

[Racer X-8]

Yup, you got it. And those are the first to holler about how we have to solve the rising price of gas, and now, global warming... freakin idiots - the general masses are nothing but a bunch of freakin idiots. Just like the Bug said...

54 fifll-ups
19,000 miles
35.7 mpg avg (US)
It's going up again with the warm spring weather. (pre-AC days)

[Lickitung]

I'm on my second tank, but this is the first tank that I've calculated. I got 33 mpg, that was 100% city driving and almost always using the a/c (it's hot here in Arizona). While I hope the mileage gets better, it's still loads better than my old Chevy S10.

[zerofloat]

Great job, zerofloat! That's very close to my second tank (38.96 MPG).

I just fueled up for my 5th time today and got 46.40 MPG. :smile:

Come join me at CleanMPG.com and we'll get you up in the mid-40's without breaking a sweat!

Bailout THANKS for the link to CleanMPG.com, picked up some great tips there. Last two fills were 40 and 43 MPG:thumbup:

[flint_mica_manual]

My first gas tank calculation: 7.458 gallons 341.6 miles = 45.8 m/g

I accelerate at my leisure and then lock in the cruise at 55. Cruise with a manual is so much better than automatic -- no kicking down in gear going up hill.

I only have 800 miles on the car. The gas mileage should get better as the car breaks in.

[Racer X-8]

Okay here it is, hehe. A couple things I can point out:

The downward trend in the beginning is mainly I think due to the drop below $1 per gallon just after the 9-11-01 attack. The price of gas dropped un-naturally low for some reason.

The major spike in 2005 was from the shortages due to Katrina.

The last thing I see is - it looks like we're in for a major price hike again... soon... :frown:

US $$$ per US gallons. Regular gas - the cheapest I could fairly easily find.Here we go again. This price gouging is repeating last year's precisely by date and pricing...

[nsmitchell]

I just filled up yesterday and my last 2 tanks averaged just shy of 40MPG. Then I got my BIG TICKET!:cry:

[swng]

Reality (I presume other cars have been similarly affected):
http://www.fueleconomy.gov/feg/calculatorCompareSideBySide.jsp?column=1&id=22749
http://www.fueleconomy.gov/feg/calculatorCompareSideBySide.jsp?column=1&id=22750

[BailOut]

Reality
True that, and it's a shame. The original EPA numbers were designed on how we were all supposed to drive. The reality is that we became a nation full of jerks that use aggressive driving to fulfill some dangerous desire for domination.

The funny thing is that the original EPA numbers are not hard at all to achieve in any vehicle. All it ever took was accelerating lightly (most folks punch it), braking lightly (most folks speed to the stop and then stand on their brakes), anticipating stops and traffic events (most folks don't look beyond the next light or further than 3 cars ahead of themselves), not speed (most folks treat a speed limit sign as a challenge) and not allow excessive idling (but everyone sits in the fast food and bank drive-thrus and at stop lights with their engine idling, and a few truly lost souls still idle their car for several minutes in the morning "to let it warm up").

A general apathy regarding fuel economy that continues to this day never helped, either. Just the other day I was chatting with a lady that was getting her VW Bug's oil changed. She had the biggest bike rack I've ever seen on her car but I noticed that is was easily removable (it just had twist tabs to release the gripping arms).

I asked her if she normally kept the rack off to help her mileage and just put it on during the times she actually needed it and she told me she keeps it on all the time. I whipped out my phone's calculator and showed her how much this was costing her per year in wasted fuel - USD $180 (60 gallons) - and she just shrugged and said she didn't like taking it off and putting it back on.

[Doug007]

I keep my tires inflated to 36-37 psi, use Mobil 1 5-30 and drive fairly conservatively. My best mpg in my Yaris S sedan was just yesterday, Reno to the Central Valley of CA - 47.7 (much downhill, good tailwind:). Overall, I have a combined mpg of 41, which I track on the following website:

http://www.fueleconomy.gov/

The Yaris is the first vehicle I've ever owned that not only met, but exceeds the EPA rating.

[acrbill]

Got my first 30MPG tank. It doesn't sound impressive but I am working 6 miles from home and I drive in true city traffic with no expressway travel.

[boxerboy]

Just filled to day and got 40.2 mpg :thumbsup: this is the first time.

[roadrunner]

I have owned my Yaris 5 speed hatchback for 6.5 months, and 6500 miles.
My current 90 day average is 43.9 mpg and going up each week. A great car IMO.

[kurokoma-kun]

getting about 38 mpg (on mostly highway commute)

[eTiMaGo]

22.6MPG, down from 24 last tank... Didn't do much long or medium distance driving, though I did try to follow some hypermiling techniques (super featherweight foot, DFCO, etc)... Managed to get better than average on the first half of the tank, but after that I got the short shifter installed and drove rather more spiritedly for a while :biggrin:

And gas prices have jumped up again :cry:

[Yaris Revenge]

BailOut, this ought to truly chap yer ass. :biggrin:

Two weeks ago I pulled into a gas station to fill up my bike. While I was there, not one, but TWO people pulled up to the store, went inside, and BOTH left their cars running. It was 70' outside, so it's not like they needed the heater or AC. One of them was an early 80s BMW belching smoke, and the other a Ford Escape.

When it comes to driving, I'll be the 1st to admit I have some aggressive habits. But I recycle like a freakin' lunatic (even bring stuff home I've found at work), compost, and run energy efficient appliances. Obvious physical waste, for me, is like fingernails on a chalkboard.

I was SO close to walking over and turning those cars off! The only thing that stopped me was the chance that something might actually be wrong with the car, and it might not crank back, which is the only valid excuse for doing something that stupid.

Silly Americans, bitching about gas prices, and then we do crap like that. :rolleyes:

~YR

[Shroomster]

my wife has gotten 26 and 27 mpg on her first two tanks....I think its because she lives 3 miles from work...and there are a lot of traffic lights....hopefully our trip to st augustine will show off the "wonderful" mpg we're hoping for hehe....

[oleblue]

I must be who the EPA published the first rating numbers for. Just put my forth tank of gas in my Yaris LiftBack. Lowest 40.2 and best 40.9. 70% HighWay 30% rural. Only 4 Stoplights in daily commute of 64 miles.

[nsmitchell]

Filled up on the 19th, just over 34MPG. Driving like granny - mainly city driving.

[churp]

5,000 mile average was 34.4 mpg.....last 4 tanks have been 37 to 38, since I put 42 psi (instead of 32) in tires and started using 89 octane (plus the weathers getting nicer)

[jamal1984]

34 and 35 on the last 2 tank, drive like graanny (suck). It's hard to drive slow on Manual. But can't afford that much gas at the moment.

[AustinYaris]

How is it possible that some people are reporting getting under 30mpg in this car?

[jamal1984]

How is it possible that some people are reporting getting under 30mpg in this car?

I did, i used to got 27 or less in my yaris, freeway much of the time 80+ mph. RPM from 3 and up. and I carry all kind of stuff in my car. My Subwoofer box are so damn heavy, about 50 pounds.

But since i started drive like a granny, 60 or less on highway, removed most of my junks. lower rpm, i start getting 34- 45. it suck, :headbang:

[jamal1984]

and i don't know how peoples get 47MPG for doing 70+? TEll me? my car basically got Intake, Header and running on stock wheels and tires.

[Shroomster]

How is it possible that some people are reporting getting under 30mpg in this car?

shorter trips equal less mpg; thats why city and highway are listed as seperate mpg's.....

my wife has a 3-4 mile commute to work plus there are about 7-8 stop lights within that range. stop and go on 4 miles each way tell me if you can get 40 mpg in a tank :P hehe...

[swng]

shorter trips equal less mpg; thats why city and highway are listed as seperate mpg's.....

my wife has a 3-4 mile commute to work plus there are about 7-8 stop lights within that range. stop and go on 4 miles each way tell me if you can get 40 mpg in a tank :P hehe...

True! I have recently been driving many very short trips and the gas gauge bars disappear really fast. I am afraid I may not be able to post any good numbers here the next time I report my fuel economy:frown:.

[AustinYaris]

I still don't understand people getting under 30 mpg ... I drove normally with short 2-3 mile trips daily, and got 37.5 mpg (again... this was with normal driving, not even driving like a granny). Some of you might want to take it to your dealership to get it checked out.

[BMGYaris]

The dealership wont do anything about just "low miles per gallon" they will first tell you that they need to take your car drive an entire tank of gas on it and then they will just tell you that epa ratings are estimates and then they will say its your driving styles and techniques.....but unless you have a specific complaint or your looking at like teens they are not going to care--at least around here

[AustinYaris]

The dealership wont do anything about just "low miles per gallon" they will first tell you that they need to take your car drive an entire tank of gas on it and then they will just tell you that epa ratings are estimates and then they will say its your driving styles and techniques.....but unless you have a specific complaint or your looking at like teens they are not going to care--at least around here

Hmm... when I took my Camry to the dealer because I thought it wasn't getting the correct MPG, they did a whole bunch of tests on it, including a test run on the highway with an MPG reader.

edit: actually... you're right... that's the BS they told me at first... I had to explain to them I kept extremely thorough records... and had to show them that I knew how to calculate MPG... etc. before they believed me.

[Yaris_Fan]

How is it possible that some people are reporting getting under 30mpg in this car?

I typically get 28-29 mpg. 100% city driving and mostly short trips.

[swng]

I typically get 28-29 mpg. 100% city driving and mostly short trips.
That is about, or better than, right:smile: :thumbsup:.
Please see this:http://www.fueleconomy.gov/feg/calculatorCompareSideBySide.jsp?column=1&id=22749
My average performance is here:smile::http://www.gassavers.org/garage/viewgaslog/264

[nsmitchell]

It would be cool if people would include the terrain they mainly drive in. Flat or Hilly? I know there are some places in the midwest where people don't encounter hills whatsoever. This could explain the super MPGs. Richmond is fairly hilly.

[BailOut]

It would be cool if people would include the terrain they mainly drive in. Flat or Hilly? I know there are some places in the midwest where people don't encounter hills whatsoever. This could explain the super MPGs. Richmond is fairly hilly.

My commute is mostly on a twisting, winding, snowy, rainy, windy, tourist-infested, 2-lane mountain road that is 27.2mi one way and is generally 25-55MPH. It begins in the Reno valley at 4,500ft, climbs to the summit of Mount Rose at 8,900ft and then drops back down to Lake Tahoe at 6,300ft.

I start climbing the mountain 1.3mi after I leave my garage, and immediately after leaving my office on the way home.

[marcus]

i hear it too on acceleration.. it didnt sound good at all sound like the timing was too advance...need to be retarded.. anyone had the same experience!! anybody..?? it could be the break in period... how many clicks you got on the car??


PLEASE READ:

I posted a few post up. I havent gained any weight and my fuel is of the same quality (dont think we get much winter mixture down here in south carolina) but i have an update on my problems.

Just last night i was driving, engine still cool, no problems though. i turn at a redlight, get giong about 25, tap the gas and suddenly there is a loud high pitched..whirrrrrrrr and

i was hardly accelerating at all. i let go of the gass...i turn of my music, tap it, whirrrrrrrrrrr,

i quickly feel the automatic clutch, its in drive, i pop on the light to confirm, not in neutral, not in third, in drive, i check the parking break, its fine, i tap the gas, whirrrrr

i start to pull over and tap it one more time and its smooth as butter, regular deep voice of automatic transmissions shifting gears. no problems the rest of the night.

I suppose what ever has caused my drastic decrease in mpg all the way down to 25 all highway driving at average 65mph is also causing this problem. Anybody have any ideas what is wrong before i head of to the shop on monday let me know.

[ECHOKnight2000]

On monday I finally broke the 50mpg barrier! I'm soooo happy! YAY! I was surprised! Damn I love my car!:clap: :thumbsup:

[BailOut]

Congratulations, ECHOKnight2000! That's awesome!

I haven't quite hit 50 myself yet. 49.74, but not 50. hehe

[nsmitchell]

On monday I finally broke the 50mpg barrier! I'm soooo happy! YAY! I was surprised! Damn I love my car!:clap: :thumbsup:
Great MPG!!! Did you slip a hybrid system in there or something?! hehe

[marcus]

first tank i got about 530 kilometers thats when the last bar starts blinkin so im assuming i got another 70 km on that last bar..does anyone KNOW how whats the least you can get on the last bar??????????????:iono:

[Harry Yaris Henderson]

2000 miles so far 38.9mpg very easy driving to and from work. trips at 60 to 65mph 40.5 average.

[oleblue]

I just filled up after my first attempt to use the Hypermiling tips. 44.48MPG. The best I had gotten Prior to that was 40.9MPG. And one of those morning I did run 70-75mph on the highway due the fact I was running late. All trips on I-40 I ran 60-65mph. I drive pretty easy most of the time anyway so the coasting at every chance I think made a difference.

[nsmitchell]

33.4MPG today. Mostly city with a little hwy.

[swng]

..does anyone KNOW how whats the least you can get on the last bar??????????????:iono:
This thread has some useful information:smile::
http://www.yarisworld.com/forums/showthread.php?t=5146

[Vervepipes]

1600 Km on the odo, city driving, a little heavier on the pedal at times (3k-3500 rpm), no excessive idleing. Todays calculation is 13.07 Km/L, 36.94 MPG, 7.65L/100Km.

[ECHOKnight2000]

Congratulations, ECHOKnight2000! That's awesome!

I haven't quite hit 50 myself yet. 49.74, but not 50. hehe

Thanks BailOut! Yeah its quite nice. Its funny how the before I thought low 40's was great but now anything at that point I'm disapointed! As long as its mid 40s and above I'm fine! Don't worry you should hit 50mpg.

nsmitchell: Shhhhhhh, don't tell them my secret!:tongue: Its nice to get hybrid mileage at an entry level price. What's even more amazing its a gas engine and not a diesel yea I know diesel can get more but its still impressive and not only with me but with you guys that have the Yaris as well!:thumbsup:

[churp]

I hit 42 mpg today! Up until 4,353 miles I was getting 32 to 35...I now have 5,659 miles and have averaged 39.12 mpg the last 1,300 miles. I pumped the tires to 42, have been driving no more than 5mph over the limit :biggrin: , the weather's finally being nice, and occasionally I coast in neutral downhill (the automatic works great at this even tho I don't do it often). Guess I owe Bailout and everyone else a big thanks for all the advice and showing it can be done.

Think the lower springs helped my aerodynamics????? :thumbup:

PS....and I don't think I got in anybodys way doing it!!

[Blenjar]

im so happy my job, they pay my traveling...48 cents a mile.

-- Blen

[marcus]

i figured its about 13.8km/liter...full tank down to empty will be aprox 580 kms. when am i gonna hit 600 km.

[swng]

i figured its about 13.8km/liter...full tank down to empty will be aprox 580 kms. when am i gonna hit 600 km.

Soon enough.
I guess in your case, if all other things remain unchanged, the weather, which should be warming up, should help you hit or exceed 600 km per tank.
I understand that you are just calculating (figuring) it but not really driving to the last drop of gas.
Enjoy your fuel economy quest!
Regards.

[nsmitchell]

34.8MPG today. Mostly City! My MPGs are on the way up!

[boris13]

Well, I only got 31 mpg on my first tank, but I've been driving fairly aggressively, so I'm not too disappointed.

[Carvin'07]

I was not being too cautious with mileage the last little while. It was on average -15 degrees C for a few weeks here, on winter tires, and with lower pressure (about 30psi for better contact patch). I acheived 30.2mpg US driving 70 hwy / 30 city shifting at 4500rpm (the car is a little faster in really cold weather, so it is more FUN).

Last tank I finally toned down my driving. I started shifting at 2500 and really took it easy. I acheived 36.4 mpg (70hwy/30city). It's ok I guess.

Hey all...my last post is above.

My latest...70hwy/30city shifting at 3500rpm on 205/40/17 Kumho MX

589.6 km on 38.66L = 6.56L/100km = 35.87 US MPG

542.6 km on 36.02L = 6.64L/100km = 35.42 US MPG

Carvin'

[marcus]

first tank 540km with 39.8l fill up = 38.34mi/gal with regular 87 octane
2nd tank ran 535km fill up 38.4l = 39.37mi/gal with premium 89 octane
3rd tank unbeknownst???

[swng]

Brief update:

About 38 mpg (Imperial) for the last tank. That is equal to about 31.66 mpg (US), or 13.475 km per liter. City/highway driving ratio was about 40/60. It used to be about 30/70 before that. Load was 2 people plus some belongings most of the time.
Trying Octane 92 now. No real improvement expected but just want to try it.
Last report is at Post #1,026.

[marcus]

hes drivin an echo ..lighter as well..it would be easier for him to reach it..but im sure its doable.. u just need... .26 m/gal...to hit it.. daym you should have rolled in down the hill..

Congratulations, ECHOKnight2000! That's awesome!

I haven't quite hit 50 myself yet. 49.74, but not 50. hehe

[marcus]

you been seing the gas mileage in here and i know mileage gets better after the break in period but what was the kilometers on the odometer on that final break in period..for a yaris to have the highest gas mileage possible?? jsut curious if people get it after 1600 km..from toyota manual book.

Brief update:

About 38 mpg (Imperial) for the last tank. That is equal to about 31.66 mpg (US), or 13.475 km per liter. City/highway driving ratio was about 40/60. It used to be about 30/70 before that. Load was 2 people plus some belongings most of the time.
Trying Octane 92 now. No real improvement expected but just want to try it.
Last report is at Post #1,026.

[swng]

Thank you so much for showing interest in the subject of this thread.

I am no expert but if the manual (page 178 on the manual for my Canadian 06 HB) mentions 1,600 km for the break-in period, there must be a strong reason for that. I personally believe that even after 1,600 km, the break-in can continue for a long while i.e. a good driving style and suitable maintenance can still help smooth out the car's operation further. Some people see a steady rise in their average mpg numbers until much much more than 1,600 km. However, too many factors affect a cars fuel economy (F.E.), so it would be hard for a layman like me to tell how much of the car's improvement in F.E. is actually due to the break-in process. May be only a scientific experiment done in a controlled environment can help in this respect.

IMHO, among the more important factors, other than breaking in, there are at least the following things that will affect a car's fuel economy:

-The driving style(s) e.g. aggressive or conservative,
-The environment/traffic conditions in which the car is driven e.g. hilly roads, stop and go, bumper to bumper, or non-stop highway etc.,
-The weather e.g. summer, winter, rainy, windy etc.,
-The road conditions e.g. smooth surfaces or uneven/unpaved roads etc.,
-The up-keep and modifications of the car e.g. , maintenance, mineral/synthetic oil, tires and tire pressure, and mechanical/electronic/aerodynamic modifications (the list is too long for here) etc.,
-The load (and wind resistance for that matter) e.g. people and luggages, roof racks, towing etc.,
-The degree of the driver's being conscious about F.E. and the fuel saving techniques he/she uses. Please see these for example and reference:http://publicarticles.info/articles/fuel_efficiency/index.asp, and http://en.wikipedia.org/wiki/Fuel_economy#Measurement_cycles.

The list at above is hardly exhaustive. Even where you park can affect you F.E. Say if you park under the sun in summer, your A/C will have to work harder when you start to drive, which means higher fuel consumption.

What I am trying to say is that there are other things that will affect a car's F.E. so that it is not so easy to tell how much more F.E. the break-in period can bring about, though it is my general understanding that a good break-in process can surely help.

I believe once a driver becomes F.E. conscious, he/she will find some way to bring about some kind of improvement, sooner or later.

Just my 2 cents. Safe and happy motoring!

[churp]

Up to 4,300 miles I got anywhere from 31 to 36mpg, after that I haven't gotten below 38 and have had up to 42 and I have 6,500 miles now. Why???....could be the 42psi I put in the tires, the lowering springs dropped it 1.5" (less drag?), weather got nicer, started using 91 octane, or maybe the newness wore off and I drove more sensible? Just know that I've averaged over 39mpg the last 2,300 miles!!!!!! LOVE IT!
:headbang:

[Driver]

I've had my Yaris since last November am averaging 33.2 mpg, My last fill-up I averaged 33.5 mpg. :thumbup:

[grampi]

As I've been reading through the posts in this forum, I've noticed most people seem to get low to high 30s MPG with the Yaris. I'm a bit puzzled as to why the Yaris doesn't seem to get any better fuel economy than my '99 Corolla. The worst mileage I've gotten was 34 and the best was 41. I typically average about 37 or 38. The Yaris is lighter, has a smaller engine, and has VVTI technology (which my Corolla doesn't have). It should get better mileage than my Corolla, but it doesn't appear that it does. I wonder why?

[eTiMaGo]

depends on driving style I'd say, more than likely you'll get better mileage than the averag numbers you see here.

[grampi]

depends on driving style I'd say, more than likely you'll get better mileage than the averag numbers you see here.

That's a good point that I didn't even consider until you mentioned it. I also seem to get better mileage with my Corolla than other people get with thiers, so maybe my driving habits are more condusive to achieving better fuel economy. Come to think of it, I'm always the one getting passed on the highway. While I'm cruising along at 75 MPH, everyone else is passing me at 80+ MPH. I might see low 40s with a Yaris.

[eTiMaGo]

Only one way to find out :biggrin:

[grampi]

I know. Don't rub it in.

[lowkey]

Best to date
535 Km on one tank!
Driving without the A/C.
1 1/2 weeks of city daily driving.

[boris13]

Second tank: 33 mpg (up from 31 mpg on the first tank).

[naossoan]

I don't know what my MPG is currently.

But I filled it up last time and I'm down 3 bars at just over 200 Km I think, all city driving.

It's hard for me to like go all the way down to the fuel light on, cause I live on Vancouver island (Canada West coast) and if I go up island about 50 KM gas is like 8 cents cheaper...so I'll fill up on the way back there and stuff so it's hard to get an accurate reading (unless i see how much fuel I put in and do the math which I'm waaaay too lazy to do that haha.)

so I'll post when I get an accurate MPG reading.

[churp]

I don't know what my MPG is currently.

But I filled it up last time and I'm down 3 bars at just over 200 Km I think, all city driving.

It's hard for me to like go all the way down to the fuel light on, cause I live on Vancouver island (Canada West coast) and if I go up island about 50 KM gas is like 8 cents cheaper...so I'll fill up on the way back there and stuff so it's hard to get an accurate reading (unless i see how much fuel I put in and do the math which I'm waaaay too lazy to do that haha.)

so I'll post when I get an accurate MPG reading.

Guess you'll never know, because thats the only way to figure gas milage (unless you buy a scangauge), your fuel gage DOES NOT tell you how many gallons you used. Without keeping track for several fillups whether its a full tank or a quarter tank at a time you may as well be pickin a number between 25 and 50. No offense....but come on already!?!?

[Vanderkitten]

There are so many factors for gas mileage, what you need to do is be OK with what you are getting. People mis-calculate, there are atmospheric anomolies, gasoline variances, etc. The best thing to do is say, "Wow, I am 1/2 a tank and I've gone THAT MANY MILES! Beat the heck out of an SUV!" and be happy with it!

Here in the Bay Area, if you commute on one side of the bay, you get different gas mileage because of prevailing winds, than the other side of the bay. It could be a 6MPG difference, and you wouldn't even feel the wind...

[churp]

Yes milage varies with temp, road conditions, etc. ......but to say my half tank got me xxxmiles means nothing, it's not MIScalculating by not measuring, it's NOT calculating. Gas milage is the amount of gas used per mile, not miles divided by a guestimate of gallons, under the conditions that are existant. No one ever asks how good of milage do you get with a 30 mile wind behind you, or if you only go down hill....the only reason to ask is to get a factual answer by dividing the miles by the total number of gallons (miles per gallon), anything else is BS (or Pelosi/Read mumbo jumbo, all talk no facts).....Sorry I'm cranky tonight, I'll shut up before I really offend someone

[craigq]

Transmission: Automatic
Driving style: Pretty sedate. Some A/C use.
Driving cycle: not sure, maybe 65/35 HWY/CTY
KM: 423
Fuel to fill: 26.647L
6.3 L/100KM
15.87 KM/L
44.84 IMP MPG
37.34 US MPG

[BailOut]

This tank is only a few days old but I set a new personal record for distance before losing the first pip on the fuel gauge:

http://www.cleanmpg.com/photos/data/500/142-full-pips.jpg

My normal commuting drains the first pip between 85 and 90 miles, and even on road trips it usually doesn't last longer than 104 miles. I'm anxious to see how this pans out across the whole tank.

[Imagine]

I got my Yaris with a half a tank of gas. So my first full tank of gas averaged 38mpg. Not bad for an Auto can't wait to see what happens once everything is broken in.

[blacksan]

Right now my Yaris fuel mileage is without the bounds cast upon it by mankind, but of course it is parked in the garage. :biggrin:

On a serious note I have averaged 41 MPG (to date) counting every gallon of gas since purchase. My commute is approximately 50 miles per day with about 45 of those on Interstate highway at a steady 65 MPH. My friend has an equally capable vehicle, but does much worse. She accelerates hard from stops and drives at ever fluctuating speeds on the Interstate. You know the type, she always races ahead, but you catch up to her at the next red light! We toke her car on a trip and I drove achieving the highest MPG she has ever had with that car. She was pissed, but started to pay attention to how I drive. We both are going to get a Scanguage to improve our results (I hope) through driver discipline.

[Pars]

This tank is only a few days old but I set a new personal record for distance before losing the first pip on the fuel gauge:

http://www.cleanmpg.com/photos/data/500/142-full-pips.jpg

My normal commuting drains the first pip between 85 and 90 miles, and even on road trips it usually doesn't last longer than 104 miles. I'm anxious to see how this pans out across the whole tank.

Wow, how'd you manage that? My guess is that you hooked sail to the top of the car and had the wind blow it around in the back roads :w00t:

[hystria]

Wow, how'd you manage that? My guess is that you hooked sail to the top of the car and had the wind blow it around in the back roads :w00t:

that too, but also tank refilled to max possible level , thus first line means way above 5 liters, probably somewhere 7-8 liters

[Sleeper]

On my most recent tank of gas I achieved 39.4MPG, I was very pleased. It was the first time I had driven my Yaris for mileage, instead of driving hard, still missing the extra 700HP I experience on a regular basis. I shifted at 3000RPM and accelerated... slowly. I'd say it took me 10 seconds to get to 45mph driving like that. S-L-O-W.

It's a compromise, this mileage thing. You get the typical pushy Floridian SUV drivers on your tail flashing their hi-beams when you drive for gas mileage. A problem I'm not used to experiencing. Back before I put a blower on my truck and was getting ~500hp I'd accelerate slowly, wait for someone to get aggravated and try to pass me. Then I'd slam the gas pedal down, leaving them in the dust or just keep them from being pushy by matching their speed. Fun times, just not when gas is >$3 a gallon and you get <8MPG.

[swng]

Right now my Yaris fuel mileage is without the bounds cast upon it by mankind, but of course it is parked in the garage. :biggrin:

On a serious note I have averaged 41 MPG (to date) counting every gallon of gas since purchase. My commute is approximately 50 miles per day with about 45 of those on Interstate highway at a steady 65 MPH. My friend has an equally capable vehicle, but does much worse. She accelerates hard from stops and drives at ever fluctuating speeds on the Interstate. You know the type, she always races ahead, but you catch up to her at the next red light! We toke her car on a trip and I drove achieving the highest MPG she has ever had with that car. She was pissed, but started to pay attention to how I drive. We both are going to get a Scanguage to improve our results (I hope) through driver discipline.

:clap: :clap: :clap:

[BailOut]

that too, but also tank refilled to max possible level , thus first line means way above 5 liters, probably somewhere 7-8 liters
I never fill beyond a pump's automatic shut-off, and with few exceptions
I always use the same pump at the same station.

[hystria]

I never fill beyond a pump's automatic shut-off, and with few exceptions
I always use the same pump at the same station.

reading back again, that's 140 MILES on one bar, considering the first bar to be 1.5 gallon, that's about 100MPG... :confused:

your fuel level sensor could be wrong ?

[BailOut]

reading back again, that's 140 MILES on one bar, considering the first bar to be 1.5 gallon, that's about 100MPG... :confused:

your fuel level sensor could be wrong ?
The fuel gauge in the Yaris isn't the most accurate thing in the world, and seems to be largely graduated at the upper end. As such it's hard to know exactly how much fuel that first pip represented but we'll know how well the gauge is doing overall in another 10 to 14 days when I fuel up again.

[Pars]

that too, but also tank refilled to max possible level , thus first line means way above 5 liters, probably somewhere 7-8 liters

Yep, the first drop is about 7 to 8 Liters. But I believe Bailout's 141.2 reading is in miles, which would equate to 226km.

[marcus]

this car cannot run 140 miles on the first bar..140 km is doable but not in miles..

[BailOut]

As I said, it may have just been a fluke in the gauge system but the display is in miles, not kilometers. Again, I see 85-105 miles on the first pip every time, but seeing 142 was a first.

[marcus]

i see i wish i can achieve that the most i had was 140 km on the first bar then again thats on my 3 tank..what was the most you've ran b4 the last bar blinked.. in kilometer ..

[BailOut]

I haven't let it get low enough to blink the last pip yet, and the best I've done so far was 9.516 gallons with the 2nd pip still showing.

At that point the tank had 472.1 miles/759.8 kilometers on it.

[marcus]

its gotta be all highway kilometers... i can barely get this this to 600 km.. and that sensible driving there no pushin it??

I haven't let it get low enough to blink the last pip yet, and the best I've done so far was 9.516 gallons with the 2nd pip still showing.

At that point the tank had 472.1 miles/759.8 kilometers on it.

[BailOut]

Yes, that was mostly highway driving, but I've hit 49.74 MPG on a tank (379.5 miles, 7.63 gallons) while commuting over the mountain to work.

[marcus]

kewl...thumbs up the the mileage...

[hystria]

Yes, that was mostly highway driving, but I've hit 49.74 MPG on a tank (379.5 miles, 7.63 gallons) while commuting over the mountain to work.

when commuting, mileage depends much on the engine's rpm, I think in the 5th gear when driving at 30mph the rpm is close to 1-1500. BailOut, could you precise the actual speed/gear ? It looks like the Yaris gets very good mileage on low rpm's

[BailOut]

I never drive faster than 55 MPH and on my commute over the mountain I stay in 3rd or 4th gear between 2,000 and 3,300 RPM, usually going 40-50 MPH (there are a few 20 MPH climbing cutback turns). On flat land I stay below 2,000 RPM as much as possible but more torque is required to climb the mountain.

On the back side of the mountain I make extensive use of DFCO and FAS (Forced Auto Stop - coasting in neutral with the engine off), which greatly helps make up for some of the fuel I had to use for climbing.

[argylesocks]

wow! vanderkitten drives a yaris? sweet!! im in love with mandy.


There are so many factors for gas mileage, what you need to do is be OK with what you are getting. People mis-calculate, there are atmospheric anomolies, gasoline variances, etc. The best thing to do is say, "Wow, I am 1/2 a tank and I've gone THAT MANY MILES! Beat the heck out of an SUV!" and be happy with it!

Here in the Bay Area, if you commute on one side of the bay, you get different gas mileage because of prevailing winds, than the other side of the bay. It could be a 6MPG difference, and you wouldn't even feel the wind...

[nsmitchell]

I got 35.3MPG the other day. Mostly city driving. My engine is running buttery smooth nowadays. Since my ticket I've been driving the speed limit and my mileage is reflecting that.

[eTiMaGo]

24.5MPG last tank, higher than before by a little bit, it's promising... Now that I've had oil changed to synthetic, and a lightened crank pulley installed, I wonder how these will affect future tanks...

[jamal1984]

I think my car will stick to either 34 or 35 mpg max, i'm driving hard most of the time, carrying alot of stuffs, it's fell like there is always 2 or more peoples in my car. I'm happy with it.

[marcus]

1st tank 540km with 39.8l fill up = 38.34mi/gal with regular 87 octane
2nd tank ran 535km fill up 38.4l = 39.37mi/gal with premium 89 octane
3rd tank 540km 37.5l fill up=40.69mi/gal with premium 89 octane
4th unbeknown

the funny thing is the last fuel bar started blinkin on 535 sumthin..and i ifilled up 37.5 liter max i can put in there which mean i have about 5 liters atleast..give or take..to about 43 liter tank.. about another 75 kilometers on that remaining gas.. i thought when it starts blinkin you only got about 50 km on it..?????

[argylesocks]

now that its warm out again.. im typically 40-43mpg

[kapo]

nicee!! I just did my first tank... almost 400 miles, 38mpg... and I filled the tank with $35!!!!

[leowhy]

instead of mentioning my best milage, let me share with you all my worst...

driving condition:
(1) 100% city driving
(2) >60% is jamming/slow driving (following car crowd)
(3) multiple traffic lights
(4) short travel distance (<10km from engine startup & engine stop)
(5) frequently rev at 2.5-3.0k rpm (mostly for pickups after idling)

BTW, i'm driving an autogear 1.5...

the result: approximately 10km/L

this is what i summarize after 13 times of refilling petrol & my yaris is currently running at aound 4500km...

cheers...

[nsmitchell]

instead of mentioning my best milage, let me share with you all my worst...

driving condition:
(1) 100% city driving
(2) >60% is jamming/slow driving (following car crowd)
(3) multiple traffic lights
(4) short travel distance (<10km from engine startup & engine stop)
(5) frequently rev at 2.5-3.0k rpm (mostly for pickups after idling)

BTW, i'm driving an autogear 1.5...

the result: approximately 10km/L

this is what i summarize after 13 times of refilling petrol & my yaris is currently running at aound 4500km...

cheers...

So that's like 24MPG, correct?:iono:

[boris13]

Third tank: 30.7 mpg
Second tank: 33.0 mpg
First tank: 31.0 mpg

[nsmitchell]

I got 35.6MPG. Mostly city and going the speed limit with no hard acceleration from stops.

[ROCKLAND TOYOTA]

i just went 3 days of local driving with the blinking light on before i filled up....

[marcus]

we should open a thread just for this blinkin light..how far it can be pushed...lolz...:laughabove: :burnrubber:

[Jem_hadar]

we should open a thread just for this blinkin light..how far it can be pushed...lolz...:laughabove: :burnrubber:


Ive run out of gas before w/ it blinking. But i didnt notice when it started. only that all of a sudden as im exiting the 400, i notice its flashing.

and my car died on me before making it to the next gas station in richmond hill. That sucked.

Had to call Toyota Roadside assistance and have them bring me that 5L of gas! :wink:

[marcus]

how long were you driving after when it start blinkin.. u should atleast get 50 km on that last bar..

[marcus]

i should beep so youll know...ill suggest that to toyota..

[Jem_hadar]

how long were you driving after when it start blinkin.. u should atleast get 50 km on that last bar..

no idea, i only noticed once i pulled off the 400, but no way i got 50 km i dont think on that last bar... i dont think

[Rico YaYa]

Yaris sedan automatic
41.05 on first tank - 98% highway, nothing over 70mph. Babied it a little while I break it in.

Rico

[swng]

Latest tank returned about 41.78 mpg (Imperial) or 34.77 mpg (US) or 6.77 liters/100 km or 14.78 km/liter.
City/highway = 30/70. A/C was on about 20% of the time. Load was two people plus some belongings most of the time. Driving style: Synchronize with normal traffic.
Weather has been gradually warming up, and it must have helped a bit.
Last update is at Post #1145, Page 77.
Historical:http://www.gassavers.org/garage/viewgaslog/264

[swng]

This may not be news any more but the $1,000 incentive awarded by the Canadian Government to people buying the fuel efficient Yaris can be seen in some detail here:
http://www.toyota.ca/cgi-bin/WebObjects/WWW.woa/10/wo/Home.WhatsNew.LatestNews-Dpos2e8166WCt9wABY3aAg/0.7?n306309e%2ehtml

Please do click open the link provided at the bottom of that page for even more information.

[Unknown_Epiphany]

I have been getting around 41-42 MPG per tank and I feel up at about 2 bars remaining.

[nsmitchell]

38.6MPG 70/30 hwy/city.
Va. Beach trip loaded with a passenger and 2 bikes and a heavy toolbox. Bachelor Party with Porsche and Emerald!:drool: :tweetz:

[SeriousBlack]

First post on this thread. Great thread by the way. I used to drive an RX-8. Got the Yaris because I couldn't talk to my kids about the environment with a straight face and still drive a fuel sucking rotary. Love the Yaris.

Working on some subtle mods and audio. I'm probably parroting someone else's comment and preaching to the converted but there's three things to remember to achieve good fuel economy:

1. Keep your tires properly inflated.
2. Keep unnecessary weight out of the vehicle.
3. Avoid jackrabbit starting/stopping.

First tank since purchase: 514 km from 37.27L (7.25L/100km) with around 80% city driving. Is there a general consensus on whether economy improves after vehicle break in/oil changes? Cheers

[swng]

First post on this thread. Great thread by the way. I used to drive an RX-8. Got the Yaris because I couldn't talk to my kids about the environment with a straight face and still drive a fuel sucking rotary. Love the Yaris.

Working on some subtle mods and audio. I'm probably parroting someone else's comment and preaching to the converted but there's three things to remember to achieve good fuel economy:

1. Keep your tires properly inflated.
2. Keep unnecessary weight out of the vehicle.
3. Avoid jackrabbit starting/stopping.

First tank since purchase: 514 km from 37.27L (7.25L/100km) with around 80% city driving. Is there a general consensus on whether economy improves after vehicle break in/oil changes? Cheers

Welcome and thank you for your kind words about this thread and also for sharing your fuel economy tips. Although there have been more tips posted before on the previous pages, what you have stated above are nevertheless three of the more important tips.

As for your question about whether economy will improve after vehicle break-in/oil changes, my owner's manual (06 RS LB) does say on Page 178 that:
.......following a few simple tips for the first 1600 km (1000 miles) can add to the future economy and long life of your vehicle.......

Although oil changes are not mentioned in the same section, Page 182 says that:
.......Oil is used to lubricate pistons, piston rings and cylinders........A new engine consumes more oil, since its pistons, piston rings and cylinder walls have not become conditioned.........
I will take it to also mean that a new engine (say, one that has not yet been broken-in) should also consume some more gas (at the same time as it consumes more oil) than one that has already gone through a good break-in process because there should be more friction for the former to overcome. It follows, albeit vaguely, that time wise for a new car, after one or more oil changes, economy can be expected to improve because by then friction should have been reduced.

Please share more of your experience any time. In fact, any members are welcome to share theirs here if any consensus is to be perceived at all.

[bassbaby10]

Yeah, my Yaris is saving more fuel than my former sedan.


_____________________
Rose
Toyota 07 Yaris (http://www.who-sells-it.com/cy/toyota-motors-643/toyota-07-yaris-212.html) - Get the Toyota 07 Yaris Catalog by Toyota Motors

[swng]

This comparison shows that a Yaris with auto transmission is more fuel economical than a competitor with manual transmission:

http://en.research.autos.sympatico.msn.ca/autos/compare/default.aspx?year=&make=Nissan&model=Versa+Hatchback&ts=363^^5018672007,28^^73590312007,&pos=0&pg=CompareAdd&ht=-1&add=595^^73589122007

The link is long and has to be copied and pasted to the location bar for the page to been viewed.

[marcus]

1st tank 540km with 39.8l fill up = 38.34mi/gal with regular 87 octane
2nd tank ran 535km fill up 38.4l = 39.37mi/gal with premium 89 octane
3rd tank 540km 37.5l fill up=40.69mi/gal with premium 89 octane
4th tank 570km premium fill up @38.00 liters =42.40 m/gal -15km/liter 89 octane
5th tank went to regular gas..unbeknown...

: car doesnt like regular gas 87 octane engine a bit noisy on acceleration unless my car timing is not adjusted right.. i should get it checked

[swng]

Your mpg numbers are improving every tank Marcus. I will be interested to know how does your car perform after switching back to regular gas as far as fuel economy is concerned. I have tried a tank of 91 Octane fuel (Chevron) and also noticed that the motor sounded a little quieter. That could just be due to psychological or other reasons though. I have just switched to Shell 87 and the car does not seem to have become more noisy.

[nsmitchell]

35.8MPG mostly city. Gas is going up all the time. I'm so glad I drive a Yaris. I asked my wife last nite if we could sell our Odyssey and get a Fit. She said "Hell No!", but I had to ask.

BTW - May 24, 2007 was our 10 year anniversary!

[marcus]

happy anniversy .. try to explain to her how much she will be saving by getting rid of the odessy...keep discussion positive and and turn outs for her own benefit... works for my wife..hehehehe great luck!

35.8MPG mostly city. Gas is going up all the time. I'm so glad I drive a Yaris. I asked my wife last nite if we could sell our Odyssey and get a Fit. She said "Hell No!", but I had to ask.

BTW - May 24, 2007 was our 10 year anniversary!

[marcus]

try opening your window and driving right beside a wall and accelerate..the wall will revert the noise back to you...on regular youll hear a kinna like knockin on the engine noise only during acceleration if you dont then ur car is fine.. still trying to find out if its due to the timing chain..but it does go away on 89 octane gas.. so mostlikely its either timing too advance or the antiknock sensor not working properly..


Your mpg numbers are improving every tank Marcus. I will be interested to know how does your car perform after switching back to regular gas as far as fuel economy is concerned. I have tried a tank of 91 Octane fuel (Chevron) and also noticed that the motor sounded a little quieter. That could just be due to psychological or other reasons though. I have just switched to Shell 87 and the car does not seem to have become more noisy.

[eTiMaGo]

if it really does sound that bad, it certainly does not sound normal and your friendly neighborhood Toyota service center will be better equipped to help you :wink:

[swng]

35.8MPG mostly city. Gas is going up all the time. I'm so glad I drive a Yaris. I asked my wife last nite if we could sell our Odyssey and get a Fit. She said "Hell No!", but I had to ask.

BTW - May 24, 2007 was our 10 year anniversary!

Happy belated anniversary and BTW great mpg for city driving:smile:!

[swng]

try opening your window and driving right beside a wall and accelerate..the wall will revert the noise back to you...on regular youll hear a kinna like knockin on the engine noise only during acceleration if you dont then ur car is fine.. still trying to find out if its due to the timing chain..but it does go away on 89 octane gas.. so mostlikely its either timing too advance or the antiknock sensor not working properly..

Tried that but not much difference heard. Will listen more carefully when the surrounding is quiet. Meanwhile, may be you would like to consider eTiMaGo's suggestion (Post #1214) i.e. ask Toyota to check it out for you to see if there is a problem. I am no expert but I think the car's computer (aka ECU) should be able to adjust ignition timing to suit different fuel octane numbers. Our Yari are designed to run on regular fuel anyway. Still grateful that you have brought this subject up for discussion and wish you best of luck!
You know, when all are equal, we may as well hang on to regular fuel for economy:wink:.

[marcus]

ill bring it in tomorrow..


Tried that but not much difference heard. Will listen more carefully when the surrounding is quiet. Meanwhile, may be you would like to consider eTiMaGo's suggestion (Post #1214) i.e. ask Toyota to check it out for you to see if there is a problem. I am no expert but I think the car's computer (aka ECU) should be able to adjust ignition timing to suit different fuel octane numbers. Our Yari are designed to run on regular fuel anyway. Still grateful that you have brought this subject up for discussion and wish you best of luck!
You know, when all are equal, we may as well hang on to regular fuel for economy:wink:.

[uncleyaris]

hey all, on my last tank 38.254 litres to fill drove 626.30 km. I think that calculate to 46.27 mpg, or 6.10 litres per 100km. Not bad!!!!!:biggrin:

[swng]

hey all, on my last tank 38.254 litres to fill drove 626.30 km. I think that calculate to 46.27 mpg, or 6.10 litres per 100km. Not bad!!!!!:biggrin:
:clap:Good numbers uncle! Lots of highway driving?

[uncleyaris]

no, but 5th gear and 60km/hr

[swng]

no, but 5th gear and 60km/hr

Noted with thanks.

[Ah Yum]

hey all, on my last tank 38.254 litres to fill drove 626.30 km. I think that calculate to 46.27 mpg, or 6.10 litres per 100km. Not bad!!!!!:biggrin:

That's better than 38 MPG US, overall I'm around there too.

[swng]

Just saw your gaslog at GasSaver.org Ah Yum (Post #1222). You know a lot of practical fuel saving techniques and your results are good. Please post more here.

[Ah Yum]

Just saw your gaslog at GasSaver.org Ah Yum (Post #1222). You know a lot of practical fuel saving techniques and your results are good. Please post more here.

Thanks for your kind words. But I'm afraid some of the hypermiler's ways are too controversial to be discussed in public.

I wouldn't feel too bad to about 30 MPG around town. If commited to save on gas, anyone could simply drive less. If I take lots of 40 MPG two-minute trips while you make 30 MPG on longer commutes but bike or walk at other times, we might still be comparable in overall fuel usage.

[marcus]

FOUND OUT! something...its quite interesting as well...

1/5000 (1 part acetone 5000 part fuel ) mixture will give you better fuel mileage up to about 27% gas savings. may be worth to try that doesnt sound much to mix with fuel..hmmmm interesting..

http://www.pureenergysystems.com/news/2005/03/17/6900069_Acetone/

[BailOut]

Acetone will certainly help your FE, at least at first. Then it goes downhill as your engine goes downhill because Acetone eats through just about any non-metal parts like gaskets, seals, hoses, tubes, etc.

It is not worth it, especially for any length of usage.

[marcus]

it does but i dont think it will do it on that mixture.. too small of an amount for it to do it.

[BailOut]

How about we mix you a nice glass of ice water with 1:5000 lye, and then have you drink one glass of it every day? :cry:

Trace amount or not, some things just are not safe in any quantity.

[marcus]

nothing will happen then coz "lye" doesnt exist on my dictionary...lolz.... but i see what you mean.." dont drink acetone "...hehehhehahahaha

[swng]

Thanks for your kind words. But I'm afraid some of the hypermiler's ways are too controversial to be discussed in public.

I wouldn't feel too bad to about 30 MPG around town. If commited to save on gas, anyone could simply drive less. If I take lots of 40 MPG two-minute trips while you make 30 MPG on longer commutes but bike or walk at other times, we might still be comparable in overall fuel usage.

Thanks for the response! Got the message. Makes very good sense to me. I am very impressed by your pragmatic, balanced, and down to earth attitude toward this subject. Also, I fully understand that hyermiling is a subject very different from basic day to day fuel economy. That is why I have edited the subject of Post #1 of this thread to "Fuel Economy in General". I regret that I have not been able to change the name of this thread accordingly. You know, I did use the word "practical" in Post #1223:wink:.

I am glad that the Yaris is a fuel economical car in its own right and almost everybody who pays attention to responsible driving can achieve a reasonably good level of F.E. with it.

Though inevitably a few (certainly not all) very exotic hypermiling techniques may give rise to some safety, legal, environmental, warranty and wear and tear concerns of a varying degree, I still think that it is good to know that such techniques exist. It is up to the good sense of individuals whether to try them. For me, I bought the Yaris for its good F.E., amongst other things such as comfort, flexibility, resale value, ease of driving/parking, and of course, reliability.

I am personally addicted to achieving good F.E. but will not give up comfort and relaxed driving to achieve the last little bit of fuel saving:smile:.

For academic interest, I still try to know more about not only the easy/practical but also the advanced/exotic fuel saving techniques, though I for sure will not put every one of them to actual use.

Please post more here:respekt:.

[swng]

FOUND OUT! something...its quite interesting as well...

1/5000 (1 part acetone 5000 part fuel ) mixture will give you better fuel mileage up to about 27% gas savings. may be worth to try that doesnt sound much to mix with fuel..hmmmm interesting..

http://www.pureenergysystems.com/news/2005/03/17/6900069_Acetone/

My friend, before you proceed, please note that this is a very controversial subject. Please read these threads for some reference:
http://www.benzworld.org/forums/general-mercedes-benz/1241113-adding-acetone-your-gas.html?highlight=acetone
http://www.gassavers.org/showthread.php?t=2142

I personally do not think the "saving" justifies the risk (or uncertainty, to say the least). However, I will always try to keep an open mind towards this kind of things. If you have further reference materials, please share them here.

[swng]

This one is about acetone being a solvent, especially of plastic materials:
http://www.benzworld.org/forums/w140-s-class/1314966-acetone-fuel-anyone-tried.html?highlight=acetone

[nsmitchell]

34.6MPG mostly city.

BTW - I tried the acetone thing in my Tacoma. It just plain didn't work. I used it on a 1000 mile trip. On the first half I didn't use it on the second half I did. MPGs were pretty much the same. 19MPG HWY. :cry: Pitiful actually!

[marcus]

yah i wouldnt try acetone either..but it might come handy during emmision testing..

[BailOut]

Well, all, my hypermiling efforts have finally led me to reach my goal of achieving 50 MPG with the Yaris!

I fueled up today with 10.383 gallons after 540.9 miles.

That is 52.095 MPG.

:drinking:


The miles represent 4 commutes over the mountain to work, letting the wife run errands twice, running my own errands twice, taking the parents out to dinner, one trip over Donner Pass (9,300ft.) to Sacramento (sea level) (230 miles round trip) and a lot of running around inside Sacramento.

[swng]

:clap:

[leowhy]

Well, all, my hypermiling efforts have finally led me to reach my goal of achieving 50 MPG with the Yaris!

I fueled up today with 10.383 gallons after 540.9 miles.

That is 52.095 MPG.

:drinking:


The miles represent 4 commutes over the mountain to work, letting the wife run errands twice, running my own errands twice, taking the parents out to dinner, one trip over Donner Pass (9,300ft.) to Sacramento (sea level) (230 miles round trip) and a lot of running around inside Sacramento.

THAT IS REALLY AWESOME!!!!!:bow: :bow: :bow:

that's actually ~21.1KM/L :eyebulge: :eyebulge: :eyebulge:

[eTiMaGo]

Well done!

[Nigal]

52 MPG! Awesome!

http://www.travellady.com/Issues/September05/images/1857_ThailandBangkok-Buddhist%20Monk.jpg

"Please Master teach me the ways of your Yaris."

[marcus]

thats about 840 km on a tank sweeet... you drive alot of downhills...

[BailOut]

thats about 840 km on a tank sweeet... you drive alot of downhills...
Never forget that in order to roll down a hill you must first use lots of fuel to climb it, or you must climb it once you've gone down it. There's no such thing as all downhill in a mountainous region. :wink:

[marcus]

id say its almost a figure of speech...high km run =downhill..but im sure that was not the case...

[bnther36]

52 mpg !!!!


All I can say is WOW !:clap:

[Nigal]

Did you happen to list how you were able to achieve such results somewhere already? I didn't wanna ask if you'd already posted it somewhere.

I just filled up today and got an all time high of 40 mpg out of my tank. I swear with 29,000 miles on my sedan it's almost as if it's just breaking in. I picked up some Mobil 1 0W-20 for an oil change tomorrow and am interested to see if there's any increase.

[BailOut]

Nigal,

I am glad to see your enthusiastic interest and point you to my stickied thread in this forum, "Fuel Efficiency and the Yaris" (http://www.yarisworld.com/forums/showthread.php?t=5979).

Enjoy!

[swng]

Latest tank returned about 41.78 mpg (Imperial) or 34.77 mpg (US) or 6.77 liters/100 km or 14.78 km/liter.
City/highway = 30/70. A/C was on about 20% of the time. Load was two people plus some belongings most of the time. Driving style: Synchronize with normal traffic.
Weather has been gradually warming up, and it must have helped a bit.
Last update is at Post #1145, Page 77.
Historical:http://www.gassavers.org/garage/viewgaslog/264

Filled up on 2 Jun 07 and the result was:

About 563 km traveled. Consumed 38.096 liters of fuel and used C$42.82 to fill back up.
Approximately 41.76 mpg (Imperial), or about 34.76 mpg (US), or 14.78 km per liter, or 6.77 liters per 100 km. I occasionally carried three passengers with their belongings, and the A/C was used about half of the time. Weather was good but warm. Driving style was - keep pace with traffic and be fuel economy conscious. No exotic measure used to save extra fuel. Other conditions similar to last report quoted i.e. Post #1201 at P.81.

This time, I used this free calculator (except for mpg (US)) which also contains a pageful of usual fuel saving tips:

http://www.vehicleservice.co.za/calc/fuel.html

For the mpg number in US gallon terms, I used the calculator provided free here:

http://www.gassavers.org/garage/viewgaslog/264

[naossoan]

ok I did a calculation last night when I got home.

I drove 565 Km on 34.something litres of gas. 87 octane
came out to 6.11 L / 100km or 39.something MPG.

Not bad!

Also, how many litres is the gas tank? 40? Seems right because the last time I filled up, the last fuel bar just started flashing and I put 36.5 litres in so 40 seems about right. I'm at work and don't have the user manual with me to check. can anyone confirm this?

[palsan]

Also, how many litres is the gas tank?

42L, 11.1gal (US), 9.2gal (imp.)

[GotYaris?]

Well my first 2 tanks of gas have gotten me approx 33.7 mpg...not exactly crazy about those numbers but I drive 35 miles one way to work and do anywhere from 65MPH to 75MPH, ac is off going to work and on coming home. I am going to take a highway trip from DC to NYC soon and see if it gets up into the 40pmg range.

[Nigal]

I was getting 34-37MPG when I first got mine but it slowly got better as I put more miles on.