Broke 50 MPG

[STC]

Hi Everyone:

Well, it's been two months since I first broke the 50 MPG barrier. Just filled up my tank early this morning and the calculation came out to 51.542... :smile: I filled-up at the 7th Bar (1/4 Tank).

I have been using the same hypermiling techniques that I've learned from this great Fuel Economy Forum! The only difference in driving this time rather than in May is that it involved a shorter trip (200mi), changing the tire pressure from 38 psi to 42 psi, and me using my A/C 1/2 the time of the trip.

I have noticed with the vehicle that when the weather is hot the engine really likes the heat! Using the A/C more than usual for me seems to not have any effect on gas mileage? :iono: Has anyone experienced the same? I have increases my tire pressure. It's been in the upper 80's and low 90's in PA. The trip was during the height of the heat wave in the Northeast.

I'm going to be taking another short trip at the end of this week and in the beginning of August. It would be nice to get two consecutive +50 MPG on this tank?

Cheers!

Gas Tank mile increments (non-ethanol gas used):
1st Bar drop (8/8) > 102 mi (102)
2nd Bar drop (7/8) > 86 mi (188)
3rd Bar drop (3/4) > 50 mi (238)
4th Bar drop (5/8) > 62 mi (300)
5th Bar drop (1/2) > 74 mi (374)
6th Bar drop (3/8) > 72 mi (446)
7th Bar drop (1/4) > 52 mi (498)
8th Bar drop (1/8) > 0

Tank total : 498 miles
Fuel used: 9.662 gallons
MPG: 51.542

[R2D2]

Nice work my friend! That's awesome economy. I too have noticed the Yaris LOVES heat to the point it helps to offset the use of AC. I just got two of my best tanks ever (46.2 and 45.4 mpg-5dr LB auto) in humid 80-90 deg weather with almost constant AC use.

R2

[KrazyDawg]

Congratulations. So when are you going to get that Ecometer or Scangauge to post some higher numbers ;)

[STC]

Nice work my friend! That's awesome economy. I too have noticed the Yaris LOVES heat to the point it helps to offset the use of AC. I just got two of my best tanks ever (46.2 and 45.4 mpg-5dr LB auto) in humid 80-90 deg weather with almost constant AC use.

R2

Thanks... :smile:

I'm very pleased with the car's FE! It is exciting everytime I fill-up and wait for the pump to "click'...

For once I don't mind going to the gas station! :laugh:

Cheers!

[STC]

Congratulations. So when are you going to get that Ecometer or Scangauge to post some higher numbers ;)

Thanks...

Funny thing you ask! I've been eyeing the Ecometer or Scanguage for some time now. Don't know which one to get? :iono:

In August, I'm purchasing from Garm a rear sway bar. I found out he also sells the Ecometer for $59.95... that's a good price! I may just be placing an order now for two items... :wink:

Cheers!

[KrazyDawg]

Thanks...

Funny thing you ask! I've been eyeing the Ecometer or Scanguage for some time now. Don't know which one to get? :iono:

In August, I'm purchasing from Garm a rear sway bar. I found out he also sells the Ecometer for $59.95... that's a good price! I may just be placing an order now for two items... :wink:

Cheers!
That's where I ordered mine from. He price matched with free shipping. I should be getting mine tomorrow.

[R2D2]

Thanks... :smile:

I'm very pleased with the car's FE! It is exciting everytime I fill-up and wait for the pump to "click'...

For once I don't mind going to the gas station! :laugh:

Cheers!

I couldn't agree more-fill ups are "events" for me as well.

[bkrownd]

I'm stuck hovering around 44 MPG. I need to start riding my bike to work again to eliminate all those 2-5 mile MPG-killing commutes. Then I will join the "50 Club" as well...

I'm surprised about the heat effect, since I always thought colder/denser air in the intake would give a bit more power? My car won't get any "heat assist" here, anyhow.

[firemachine69]

Cold/dense air requires more fuel to combust, hence the increase in power.


However, more fuel is detrimental to FE.


Hence why hot air will benefit the Yaris in your quest for FE.

[bkrownd]

Cold/dense air requires more fuel to combust, hence the increase in power.

If there was excess power you'd be accelerating. To maintain speed you'd respond by reducing throttle to eliminate the excess power and it would balance out to the same FE. There has to be another or more specific explanation, like a decrease in power output per unit fuel flow rate for colder intake air.

To take it to the limit, your arguement suggests that the thinner the air gets the higher the fuel efficiency will be. It obviously isn't that simple.

[firemachine69]

No, it really is that simple, that's the basics behind the "CAI", or "Cold Air Intake".

[STC]

Hi Everyone:

Just the other day, I was able to reach consecutively 50+ MPG... this time 52.166 MPG. :smile:

No different techniques then last month... and the same tire pressure. The only difference is I took two trips (200mi and 100mi) instead of one.

It has been very hot and muggy! The Yaris loves the heat and highway trips...

I'm using the A/C still about 1/2 the time of my driving. It seems that using the A/C has not had any affect on fuel consumption...:smile:

Hopefully, I can make three consecutive 50+ MPG tanks? The cooler weather will be coming soon, the Yaris does not perform as well in FE for the PA Winter Season.

Cheers!

Gas Tank mile increments (non-ethanol gas used):
1st Bar drop (8/8) > 112 mi (112)
2nd Bar drop (7/8) > 85 mi (197)
3rd Bar drop (3/4) > 40 mi (237)
4th Bar drop (5/8) > 73 mi (310)
5th Bar drop (1/2) > 83 mi (393)
6th Bar drop (3/8) > 60 mi (453)
7th Bar drop (1/4) > 55 mi (508)
8th Bar drop (1/8) > 0

Tank total : 508 miles
Fuel used: 9.738 gallons
MPG: 52.166

[BailOut]

Well done! :clap:

[RED87]

Wow your getting better mileage than I am in my 2010 5 Door LB auto What state do you live in? I live in UTAH and I average 36-40 miles per gallon...

[KrazyDawg]

Hi Everyone:

Just the other day, I was able to reach consecutively 50+ MPG... this time 52.166 MPG. :smile:

No different techniques then last month... and the same tire pressure. The only difference is I took two trips (200mi and 100mi) instead of one.

It has been very hot and muggy! The Yaris loves the heat and highway trips...

I'm using the A/C still about 1/2 the time of my driving. It seems that using the A/C has not had any affect on fuel consumption...:smile:

Hopefully, I can make three consecutive 50+ MPG tanks? The cooler weather will be coming soon, the Yaris does not perform as well in FE for the PA Winter Season.

Cheers!

Gas Tank mile increments (non-ethanol gas used):
1st Bar drop (8/8) > 112 mi (112)
2nd Bar drop (7/8) > 85 mi (197)
3rd Bar drop (3/4) > 40 mi (237)
4th Bar drop (5/8) > 73 mi (310)
5th Bar drop (1/2) > 83 mi (393)
6th Bar drop (3/8) > 60 mi (453)
7th Bar drop (1/4) > 55 mi (508)
8th Bar drop (1/8) > 0

Tank total : 508 miles
Fuel used: 9.738 gallons
MPG: 52.166
What's the low and the high in your area?

[STC]

What's the low and the high in your area?

What do you mean? Is this something you gather from Ecometer or SGII?

Cheers! :smile:

[KrazyDawg]

What do you mean? Is this something you gather from Ecometer or SGII?

Cheers! :smile:
Sorry, I meant the temperatures. I'm trying to figure out what's the optimal temp for the Yaris to run in.

[STC]

Sorry, I meant the temperatures. I'm trying to figure out what's the optimal temp for the Yaris to run in.

Both trips I traveled in the late morning into afternoon. The outside temperature was at around 90-92 degrees with high humidity... very sticky. I used A/C over half of the time.

Cheers!

[STC]

Hi Everyone,

Yesterday, I was able to make 50+ MPG on my tank for the third time in a row! I just broke the 50 mile mark this time... 50.727 MPG.

The driving technique, speed, tire pressure, weight, outside temperatures, and fuel (non-ethanol & same gas pump) were all the same. The only difference being the highway distance. This time I took two trips of 200 and 150 miles, instead of the last time being two trips of 200 and 100 miles. Yet, I traveled more trip highway miles on this tank and got less MPG of about 1.5 MPG? I can only think this small difference was that I may have used the A/C a little more than the last time? And the extra driving distance was more flat? I could not glide as much.

Any rate, I would love to make four consecutive 50+ MPG on the tank. Unfortunately, I believe this will be highly unlikely! I’m not taking any road trips soon and will actually be driving through campus all the time when Penn State starts classes in less than two weeks... that will be interesting!
It is still hard for me to believe that the initial fuel fill-up was only 28 MPG. This is why breaking 50 mile mark has been a challenge for me with the Yaris and somewhat an obsession... LOL! :laugh:

I must say, the Yaris is an incredible car for FE! No doubt... I’m very happy with my decision on the purchase now... :smile:

I will soon be purchasing the Ecometer from MI... Can’t wait to see the values it shows during my driving...

Cheers!

Gas Tank mile increments (non-ethanol gas used):
1st Bar drop (8/8) > 116 mi (116)
2nd Bar drop (7/8) > 71 mi (187)
3rd Bar drop (3/4) > 55 mi (242)
4th Bar drop (5/8) > 75 mi (317)
5th Bar drop (1/2) > 57 mi (374)
6th Bar drop (3/8) > 63 mi (437)
7th Bar drop (1/4) > 65 mi (502)
8th Bar drop (1/8) > 0

Tank total : 502 miles
Fuel used: 9.896 gallons
MPG: 50.727

[bkrownd]

Even in the best conditions I haven't cracked 50. However, the short recessed stem of the Yaris' wheel air valve has kept me from being able to increase my tire pressure above what the dealer put in. My home air pump can't get into that tight space. :/ Someday I will get a new pump...

[nmgolfer]

Congrats mark you're doing great! Give us some specifics.... How did you do it? Ave. Speed? Hilly or Flat? Any mods made to increase FE?

Rick

[nmgolfer]

Even in the best conditions I haven't cracked 50. However, the short recessed stem of the Yaris' wheel air valve has kept me from being able to increase my tire pressure above what the dealer put in. My home air pump can't get into that tight space. :/ Someday I will get a new pump...


I had to buy a new tire inflater/gauge down at harbor freight $5.00 for the same reason.... no biggy... first couple of tanks will pay for it I figure.. Running 38 in the Bridgestone potenzas at the moment.

[STC]

Congrats mark you're doing great! Give us some specifics.... How did you do it? Ave. Speed? Hilly or Flat? Any mods made to increase FE?

Rick

To start with most of my normal driving routine is highway commutes (country roads) going to the limited city driving at work. I average mid to upper forties.

Occasionally, I take work trips around PA along with my normal driving routine. Trips range from 100 to 300 miles and I have taken two trips on one tank several times. The last three times have all been trips to Hershey, Altoona, and Bloomsburg, PA.

Speed and terrain are the basics for good FE. Using in-gear glides (DFCO) and in-gear glides to minimal braking for city lights furthers good FE. I think one of the most important rules for great FE is to apply the accelerator ever so lightly all the time. When I bought my new car, I drove it like my other cars in the past... jack-rabbit starts and heavy braking to a stop. I got 27-28 MPG! I started to take it easy on the accelerator... and it instantly jumped to the mid-thirties. Then I started with my glides and limited brake use that brought me up to the lower forties. There were other techniques that helped in a minimum amount... duration of A/C & heater, no engine start idling, defroster use, and shutting off the engine at drive-thru tellers, etc.

These last trips involved a decent amount of highway hills (hilly terrain) that I was able to use DFCO: http://www.yarisworld.com/forums/showthread.php?t=4248. Due to the hill lengths, I’m able to maintain my momentum speed for a good amount of time due to the grades. When I’m not able to maintain, I pop the gear into neutral and glide. On ramps and slow downs I used DFCO all the time.

I do not have SCII or Ecometer to check my average speed yet. On the highway I travel the limited speed according to State law (15 MPH below specific speed limit)... Interstate around 40-53 MPH and county roads around 40-45 MPH (once you start to go over 55 MPH wind resistance becomes a factor in the Yaris for FE). City driving is up to the posted speed limit. Whether what gear I’m in, while driving my RPM is mostly under 2,200. When I shift, I’m generally shifting just under 2,000 RPM. When driving in fifth gear or under, I only down-shift when the tachometer drops below 1,300 RPM. While driving on my last three trips most was 2,000 RPM or under. Importantly, with shift points I try to be very light on the accelerator. When there is heavy city traffic, I’m still light on the accelerator, but shift fast through the gears to get up to speed so I don’t piss-off other drivers. I try to learn new driving area environments as quick as possible while maintain hypermiling techniques.

No mods to increase FE. I do have an SS exhaust resonated tip mod that probable has little or no negative affect on FE? :iono: My tires are considered low resistance tires (LRR), Bridgestone Potenza RE 92 185 x 60-15. I bumped up my PSI to 42 to help in the roll. My travel is light... my work equipment and luggage is around 70lbs. The fuel I use is RBOB gas (non-ethanol)... approximately 1-3 MPG better than ethanol gas. Soon the gas will be leaving this area and I will be forced to use ethanol gas additive. :frown:

Does this specific information help?

Cheers! :smile:

[jhsouders]

Both trips I traveled in the late morning into afternoon. The outside temperature was at around 90-92 degrees with high humidity... very sticky. I used A/C over half of the time.

Cheers!

Ever thought about trying a tank without AC to see if you can get that mpg number even higher?

[STC]

Ever thought about trying a tank without AC to see if you can get that mpg number even higher?

Yes! But, I would rather not sacrifice comfort to achieve possibly a mile or two more?

By using the A/C half the time (incrementaly) does not make much of a difference in FE. I would imagine using it all the time would be pretty much the same case? There are other variables I could concentrate on in driving and possibly squeeze out the 1-2 miles that I would of gained by no A/C.

Right now, I'm comfortable with breaking fifty. I'm sure breaking 55 can be achieved... but to what extent and sacrifice?

Cheers! :smile:

[nmgolfer]

Thanks for the reply Mark. Your mileage makes sense at those speeds and highway vs. city percentages along with contentious driving. I'm pleased I got 43.8 in combined city highway on my first tank and I aim to do better on the next.

Yes form drag typically begins to exceed rolling resistance (and other linear loses) at about 55 mpg and rises exponentially. That is why aerodynamic form factor (drag coefficient times frontal area or CdA) is so critically important. Unfortunately its not possible to drive 55 in most places and still go with the flow. Jimmy Carter tried (for this reason... and because it saves lives) but Americans like more speed and have longer distances to travel particularly in the West.

Yaris compares pretty good with CdA at 6.13 as compared to 5.84 for the third Gen Prius. But there is room for improvement. I'd like to see more aerodynamic wheel covers and rear wheel well covers on the next Gen Yaris and if they could make it a low cost plug in hybrid with regen braking that would be even better... then we could use racing discs on front wheels and back.

To start with most of my normal driving routine is highway commutes (country roads) going to the limited city driving at work. I average mid to upper forties.

Occasionally, I take work trips around PA along with my normal driving routine. Trips range from 100 to 300 miles and I have taken two trips on one tank several times. The last three times have all been trips to Hershey, Altoona, and Bloomsburg, PA.

Speed and terrain are the basics for good FE. Using in-gear glides (DFCO) and in-gear glides to minimal braking for city lights furthers good FE. I think one of the most important rules for great FE is to apply the accelerator ever so lightly all the time. When I bought my new car, I drove it like my other cars in the past... jack-rabbit starts and heavy braking to a stop. I got 27-28 MPG! I started to take it easy on the accelerator... and it instantly jumped to the mid-thirties. Then I started with my glides and limited brake use that brought me up to the lower forties. There were other techniques that helped in a minimum amount... duration of A/C & heater, no engine start idling, defroster use, and shutting off the engine at drive-thru tellers, etc.

These last trips involved a decent amount of highway hills (hilly terrain) that I was able to use DFCO: http://www.yarisworld.com/forums/showthread.php?t=4248. Due to the hill lengths, I’m able to maintain my momentum speed for a good amount of time due to the grades. When I’m not able to maintain, I pop the gear into neutral and glide. On ramps and slow downs I used DFCO all the time.

I do not have SCII or Ecometer to check my average speed yet. On the highway I travel the limited speed according to State law (15 MPH below specific speed limit)... Interstate around 40-53 MPH and county roads around 40-45 MPH (once you start to go over 55 MPH wind resistance becomes a factor in the Yaris for FE). City driving is up to the posted speed limit. Whether what gear I’m in, while driving my RPM is mostly under 2,200. When I shift, I’m generally shifting just under 2,000 RPM. When driving in fifth gear or under, I only down-shift when the tachometer drops below 1,300 RPM. While driving on my last three trips most was 2,000 RPM or under. Importantly, with shift points I try to be very light on the accelerator. When there is heavy city traffic, I’m still light on the accelerator, but shift fast through the gears to get up to speed so I don’t piss-off other drivers. I try to learn new driving area environments as quick as possible while maintain hypermiling techniques.

No mods to increase FE. I do have an SS exhaust resonated tip mod that probable has little or no negative affect on FE? :iono: My tires are considered low resistance tires (LRR), Bridgestone Potenza RE 92 185 x 60-15. I bumped up my PSI to 42 to help in the roll. My travel is light... my work equipment and luggage is around 70lbs. The fuel I use is RBOB gas (non-ethanol)... approximately 1-3 MPG better than ethanol gas. Soon the gas will be leaving this area and I will be forced to use ethanol gas additive. :frown:

Does this specific information help?

Cheers! :smile:

[nmgolfer]

I wish somebody made an after-market swamp cooler for these things. Wouldn't need to run the AC compressor or draw in as much air with the fan (less sinking drag)... Wouldn't work in high humidity climes though.

Yes! But, I would rather not sacrifice comfort to achieve possibly a mile or two more?

By using the A/C half the time (incrementaly) does not make much of a difference in FE. I would imagine using it all the time would be pretty much the same case? There are other variables I could concentrate on in driving and possibly squeeze out the 1-2 miles that I would of gained by no A/C.

Right now, I'm comfortable with breaking fifty. I'm sure breaking 55 can be achieved... but to what extent and sacrifice?

Cheers! :smile:

[STC]

Thanks for the reply Mark. Your mileage makes sense at those speeds and highway vs. city percentages along with contentious driving. I'm pleased I got 43.8 in combined city highway on my first tank and I aim to do better on the next.

Yes form drag typically begins to exceed rolling resistance (and other linear loses) at about 55 mpg and rises exponentially. That is why aerodynamic form factor (drag coefficient times frontal area or CdA) is so critically important. Unfortunately its not possible to drive 55 in most places and still go with the flow. Jimmy Carter tried (for this reason... and because it saves lives) but Americans like more speed and have longer distances to travel particularly in the West.

Yaris compares pretty good with CdA at 6.13 as compared to 5.84 for the third Gen Prius. But there is room for improvement. I'd like to see more aerodynamic wheel covers and rear wheel well covers on the next Gen Yaris and if they could make it a low cost plug in hybrid with regen braking that would be even better... then we could use racing discs on front wheels and back.

You’re welcome! 43.8 MPG combined on your first tank is very good. More likely you will do better the next time around. With that first tank, what was your percentage in city vs highway driving and speed? How about terrain? Years back when I was in Albuquerque, New Mexico, I recall on the Interstate some long grades, but not much steepness?

Yes, CdA is non-linear in scale! That is why I keep my speed under 55 MPH. Honda in my eyes has always made cars with good CdA design in mind. Too bad they stopped making the CRX line in the 90’s.... they were great non-hybrid FE cars. What’s up with Honda today? Their 1st Gen Insight was great in CdA numbers!

I’m fortunate that I can drive under 55 MPH. The flow seems like 55-60 in posted 55 MPH zones and 65-75 in 65 MPH zones. People don’t pass me going terribly fast. I’ve gotten a few beeps (3 so far) and a couple of fingers... LOL! Most importantly, I’m not a hazard to others driving safety. We have large Amish communities in Central and Southeast Pennsylvania... most people drive carefully on country roads because of the hills and slow moving Amish buggies.

That was actually a wonderful idea that Mr. Carter thought up of during the second gas crunch in the 70’s. Too bad, it never became very popular. Could you imagine if everyone drove 55 and under with basic hypermiling techniques? ...Less deaths, personal vehicle expenses, and of course less oil consumption.

Let us know how your FE does in future tanks, Rick!

BTW: Contentious driving? I'm more of a conscious driver. :smile: I’m passive when it comes down to driving...

Cheers!

[bkrownd]

I’ve gotten a few beeps (3 so far) and a couple of fingers... LOL!

What a bunch of selfish morons. Glad I don't live in road-rage country anymore! People are perfectly happy to go a sensible 45-50 here.

[STC]

What a bunch of selfish morons. Glad I don't live in road-rage country anymore! People are perfectly happy to go a sensible 45-50 here.

Well, the drivers in my area are actually mellow drivers. It was on my trips to eastern PA and the big cities that I got those welcome responses... :wink:

[docB]

What kills on the highway is the difference in speed. Also, todays and the Carter era cars were designed to run best about 60-70 mph. 55 usually has a rhythme with the road that puts you to sleep. Todays stats show more people on the road driving a bit faster w/ less carnage.

I run 42 in the front tires, 35 rear. Less understeer. 15" Goodyears. The RE-92 is a mileage tire? With a tread rating of 160, that is not the case.

I also have a hard time with instantaneous FE figures. Track all the gas you burn and give me the milage from that. I have over 11k miles and am just shy of 40 mpg for allof them.
doc

[Freedan]

Wow, over 50 mpg! :drool:

I can't wait to fill up my tank for the first time to see my MPG.

If you are in Southern California and see a guy with a Bayou Blue Yaris dancing at the pumps in a week or so. It'll probably be me.

[STC]

I run 42 in the front tires, 35 rear. Less understeer. 15" Goodyears. The RE-92 is a mileage tire? With a tread rating of 160, that is not the case.

Actually, the Bridgestone Potenza RE92 165/65/14 and RE92 175/65/14 are LRR tires. The 185/60/15 is considered a LRR tire, but does not have a stamp to show. So, they are probably not? :iono: At least this is what I gather?




I also have a hard time with instantaneous FE figures. Track all the gas you burn and give me the milage from that. I have over 11k miles and am just shy of 40 mpg for allof them.
doc

Actually, these are not instantaneous figures. I track all my gas mileage from pump 'click' to pump 'click' and prior write down all the 'bar' drop 1/8 increments. On the tank when I fill up is usually on the 7th bar or the last bar (single flash). I add the total mileage once the pump 'clicks' and write down the amount of gallons on the pump. I always use the same pump. I have no Scanguage or Ecometer yet... so I can't use instantaneous figures. These are real life figures...:smile:

I had three consecutive 50+ MPG on the tank during the mid summer. I knew to make four in a row would be difficult since my driving would not involve taking any trips. I was correct. I was just short of 50... 49.349 MPG to be precise.

Cheers! :smile:

Gas Tank mile increments (non-ethanol gas used):
1st Bar drop (8/8) > 93 mi (93)
2nd Bar drop (7/8) > 78 mi (171)
3rd Bar drop (3/4) > 64 mi (235)
4th Bar drop (5/8) > 55 mi (290)
5th Bar drop (1/2) > 80 mi (370)
6th Bar drop (3/8) > 58 mi (428)
7th Bar drop (1/4) > 63 mi (491)
8th Bar drop (1/8) > 02 mi (493)

Tank total : 493 miles
Fuel used: 9.990 gallons
MPG: 49.349

[Yaris Hilton]

However, the short recessed stem of the Yaris' wheel air valve has kept me from being able to increase my tire pressure above what the dealer put in. My home air pump can't get into that tight space. :/ Someday I will get a new pump...

It's a lot easier if you pull the wheel covers off. It's not hard to pull them off and put them back on, no tools required. Now I just leave mine off.

[docB]

I am glad STC is getting really awesome economy with the real numbers. I am pretty glad for the milage I get since my car has been near 100 mph a time or two. Mine is a cash for clunckers deal. Got rid of a 97 Crown Vic. No regrets. Also, this forum has been a great help. I killed my TPMS light via the postings so I can run my light weight Miata wheels. Better everything from the lighter wheels. Keep up the high milin'. The deal over a Prius really sweetens when a Yaris goes over 40 mpg.
doc

[STC]

I am glad STC is getting really awesome economy with the real numbers. I am pretty glad for the milage I get since my car has been near 100 mph a time or two. Mine is a cash for clunckers deal. Got rid of a 97 Crown Vic. No regrets. Also, this forum has been a great help. I killed my TPMS light via the postings so I can run my light weight Miata wheels. Better everything from the lighter wheels. Keep up the high milin'. The deal over a Prius really sweetens when a Yaris goes over 40 mpg.
doc

Thanks... Going from a Ford Crown Victoria to a Yaris is a major change. You must definitely see the difference in FE. What does a Crown get? 15 MPG? I see a major difference with my change from a Pontiac Sunfire. The Sunfire is said to be good in FE for the 2.2 engine. The Yaris blows the Sunfire away... :smile:

Unfortunately, I’m going to be doing a partial fill-up (at little over a half tank) by the 15th of this month. By that time the petroleum suppliers (Altoona, PA pipeline) of two of the last left Non-Ethanol stations in State College area will be converting to Ethanol gas. This is a reality from a law passing in both State Houses and signed by the governor several years ago. Already Philly and Pittsburgh areas/regions had to comply with EPA oxygenated gas standards (Ethanol use) because of their population. Now it is central PA’s turn. They (corporate/government crimeocracy) were pushing for it, and they got it! It just took several years later. The good thing is I can get my last complete fill in mid-October! The other gas station that carries non-ethanol gas will be filling their tank from the Altoona gas line in mid-October. Their tank is full and they expect to fill up then. They will make the necessary filter changes and pump conversion when they run out of the conventional gas.

This is progress for you? Now what are the farmers and small engine customers going to do here in Central PA? They will probably have to be fixing their engines and gas lines more often?

I have never been a fan of ethanol for two reasons:

1)The physical property (chemical chain) of ethanol... alcohol... Short shelf life, creates condensation in gas lines and fixtures, can rust older parts, doesn’t properly lubricate...

2)The inefficiency of how we produce the ethanol.

The higher gas mileage of non-ethanol is a benefit for me. Not much, though!. You only gain approximately 1-3 MPG more using non-ethanol conventional gas.

Cheers! :smile:

[PhotoDu.de]

Thanks... Going from a Ford Crown Victoria to a Yaris is a major change. You must definitely see the difference in FE. What does a Crown get? 15 MPG? I see a major difference with my change from a Pontiac Sunfire. The Sunfire is said to be good in FE for the 2.2 engine. The Yaris blows the Sunfire away... :smile:

Unfortunately, I’m going to be doing a partial fill-up (at little over a half tank) by the 15th of this month. By that time the petroleum suppliers (Altoona, PA pipeline) of two of the last left Non-Ethanol stations in State College area will be converting to Ethanol gas. This is a reality from a law passing in both State Houses and signed by the governor several years ago. Already Philly and Pittsburgh areas/regions had to comply with EPA oxygenated gas standards (Ethanol use) because of their population. Now it is central PA’s turn. They (corporate/government crimeocracy) were pushing for it, and they got it! It just took several years later. The good thing is I can get my last complete fill in mid-October! The other gas station that carries non-ethanol gas will be filling their tank from the Altoona gas line in mid-October. Their tank is full and they expect to fill up then. They will make the necessary filter changes and pump conversion when they run out of the conventional gas.

This is progress for you? Now what are the farmers and small engine customers going to do here in Central PA? They will probably have to be fixing their engines and gas lines more often?

I have never been a fan of ethanol for two reasons:

1)The physical property (chemical chain) of ethanol... alcohol... Short shelf life, creates condensation in gas lines and fixtures, can rust older parts, doesn’t properly lubricate...

2)The inefficiency of how we produce the ethanol.

The higher gas mileage of non-ethanol is a benefit for me. Not much, though!. You only gain approximately 1-3 MPG more using non-ethanol conventional gas.

Cheers! :smile:

We give farmers subsidies to grow a lot more corn than we really need. To keep corn prices up, we mandate ethanol production for gasoline.

Also since corn is so cheap, high fructose corn syrup is so cheap that it is cheaper to buy sweet junk food/soda than healthier foods.

If we either got rid of subsidies or subsidies healthy fruits/vegetables, our country would be a lot healthier and our cars would run better. (However some farmers would go under)

[KrazyDawg]

We give farmers subsidies to grow a lot more corn than we really need. To keep corn prices up, we mandate ethanol production for gasoline.

Also since corn is so cheap, high fructose corn syrup is so cheap that it is cheaper to buy sweet junk food/soda than healthier foods.

If we either got rid of subsidies or subsidies healthy fruits/vegetables, our country would be a lot healthier and our cars would run better. (However some farmers would go under)
Forgot about the popcorn subsidy that movie theaters charge. ;)

[STC]

We give farmers subsidies to grow a lot more corn than we really need. To keep corn prices up, we mandate ethanol production for gasoline.

Also since corn is so cheap, high fructose corn syrup is so cheap that it is cheaper to buy sweet junk food/soda than healthier foods.

If we either got rid of subsidies or subsidies healthy fruits/vegetables, our country would be a lot healthier and our cars would run better. (However some farmers would go under)

This is correct...

But, "farmers subsities" and "farmers would go under"? You meant "the few agribusiness giants"? The traditional" American farmer had gone under years ago... :wink:

I've always respected this article several years back from this highly regarded and reputable research source in Canada...

Global Research:
http://www.globalresearch.ca/index.php?context=section&sectionName=about

Article:
http://www.globalresearch.ca/index.php?context=va&aid=6933

Cheers!

[PhotoDu.de]

The traditional" American farmer had gone under years ago...

In general this is true. However, the raise of farmer's markets and similar things have been good for family farms.

[STC]

This morning I filled my tank (56 miles into the 5th bar) at the1/2 tank reading. I generally fill up when the tank is closer to “empty” at the 7th bar (1/4) or the beginning of the last flashing 8th bar (1/8). But, I decided to do a partial fill, to make sure I get the last of the Non-Ethanol gas at the station. Non-Ethanol gas will be phased out later this week or next week at the station I regularly fill-up my car.

I was able to get 53.034 MPG... my highest MPG to date. Although, this was my first partial fill recorded (1/2 bar present with 374 miles traveled) on the tank, it looks like I would have been on the track to break 50 MPG with a complete full fill.

I see from my records that when the bar drops to 1/2 tank (5th bar), I average 289 miles from my fills. When I fill up at the “empty” tank mark, I average 486 miles. Obviously, the gauge properties of the Yaris are that the first half tank you get more miles than the second half tank. Though, the difference after calculating is only 92 miles on average of my fills...

Then hypothetically, even if I filled up the tank when it was “empty” and say getting a very makeable 60 miles for the 6th and 7th bars. The mileage would come out to be an average of 42.857 MPG for those last two bars (120/2.8gallons). With this in mind, a complete full fill would be: 50.142 MPG

Tank total: 494 miles
Fuel used: 9.852 gallons
MPG: 50.142

I think the 42.857 MPG for the last two bars is very maintainable figure for me. I’m confident that I would have broken the 50 MPG barrier if I filled up when the tank was “empty”...

The partial fill that I calculated to 53.034 MPG does not count for my records, since I calculate from full fill-ups.

Cheers! :smile:

Actual Partial Fill:
Gas Tank mile increments (non-ethanol gas used):
1st Bar drop (8/8) > 85 mi (85)
2nd Bar drop (7/8) > 87 mi (172)
3rd Bar drop (3/4) > 65 mi (237)
4th Bar drop (5/8) > 81 mi (318)
5th Bar drop (1/2) > 56 mi (374) Note: Bar was still showing
6th Bar drop (3/8) > 0
7th Bar drop (1/4) > 0
8th Bar drop (1/8) > 0

Tank total: 374 miles
Fuel used: 7.052 gallons
MPG: 53.034

[docB]

don't forget that alcohol evaporates readily. As you pump it in you will loose some. That stuff doesn't hold well in the evap canister...more loss.
I had a tank full once w/ the Crown Vic at 21 mpg or so. Not easy to do.

A funny thing about the ethanol for the gasoline...special hybrid corn,needs a petroleum fertilizer. Gov't subsidized but doesn't do much for the world.

[STC]

don't forget that alcohol evaporates readily. As you pump it in you will loose some. That stuff doesn't hold well in the evap canister...more loss.
I had a tank full once w/ the Crown Vic at 21 mpg or so. Not easy to do.

A funny thing about the ethanol for the gasoline...special hybrid corn,needs a petroleum fertilizer. Gov't subsidized but doesn't do much for the world.

Exactly! I have to remember when pumping ethanol gas to go slow! It is a good practice to always fill up your car early in the morning (daybreak) when the gas station tank is cool over night and to fill up slowly so fumes don't escape. With this in mind, you are loosing less gas to evaporation. It looks like around a little over three weeks till I start using ethanol gas... :frown:

Don't get me started with the corporatocracy... that pretty much explains it... the government and the big agribusinesses working together to create a greener world! LOL! Profits baby... profits !!! :wink:

Cheers!

[why?]

ooh, sounds like fun! Although i don't think the farmers have anything to do with it, the government and the idiots in hollywood just decided they needed more money for some silly reason, so they gave it to them. Prolly at gunpoint too, like the did to the banks more recently.

[chrisj]

That mpg is starting to sound like my 1981 Starlet! It got 52. Wonder why they stopped making that little fart?

[STC]

That mpg is starting to sound like my 1981 Starlet! It got 52. Wonder why they stopped making that little fart?

Because it got really good gas mileage... LOL! :laugh:

Actually, subcompacts and HBs got really good gas mileage because there were less EPA regulations back then! Today, car manufactures have to work hard in producing more non-hybrid efficient cars.

Cheers!

[KrazyDawg]

Because it got really good gas mileage... LOL! :laugh:

Actually, subcompacts and HBs got really good gas mileage because there were less EPA regulations back then! Today, car manufactures have to work hard in producing more non-hybrid efficient cars.

Cheers!
The lighter weight and smaller size of the cars in the 80s is also a contributing factor. There are people driving Civic VX and Geo Metros that get in the 50s.

[STC]

The lighter weight and smaller size of the cars in the 80s is also a contributing factor. There are people driving Civic VX and Geo Metros that get in the 50s.

Yeah, I forgot that too! The metal seemed to be cheaper and rust all the time. Remember those Toyota Pick-up trucks?

Cheers!

[why?]

Don't forget the old dodge colt. Could get mid 50's gas mileage, but if you hit a dog, you died.

[STC]

Don't forget the old dodge colt. Could get mid 50's gas mileage, but if you hit a dog, you died.

:smile:

I actually had an old Colt (1989)... sixth generation! It was the one with slanted eyes... the Mitsubishi Mirage... 1989-1992. I got mid to upper 40's on mine. I think the fourth and fifth generations you could get well into the 50's... they were more square, though.

Cheers!

[STC]

:smile:

Earlier this morning I filled up. Came out to 49.842 MPG... No trips, just driving my country roads to work (at small city).

Cheers!

Gas Tank mile increments (non-ethanol gas used):
1st Bar drop (8/8) > 95 mi (95)
2nd Bar drop (7/8) > 73mi (168)
3rd Bar drop (3/4) > 70 mi (238)
4th Bar drop (5/8) > 70 mi (308)
5th Bar drop (1/2) > 50 mi (358)
6th Bar drop (3/8) > 65 mi (423)
7th Bar drop (1/4) > 37 mi (460)
8th Bar drop (1/8) > 0

Tank total: 460 miles
Fuel used: 9.229 gallons
MPG: 49.842

[docB]

Lower air pressure in the rear to help avoid brake lock-up, handle better. I know a few people that had the 1980's Honda CRX. Most claimed 35 or more mpg at 75 mph.
doc

[Idahotom]

I was bragging up my new (to me, '08) Yaris today to a buddy with a Metro, and he at one point said driven hard and loaded with his carpenter tools, (NO hypermile techniques, no scan gauge, regular air pressure in the tires etc) he gets 44 mpg combined. "Yeah, but I got airbags, and it's a Toyota", was my comeback!

I like to think the Yaris is a Metro for the 21 st century, and I mean that as a compliment to the Yaris. A big difference in ride comfort/quality of course, if they had kept making and improving the Metro it'd probably be very like the Yaris is now.

[david058]

What's the low and the high in your area?

I run my yaris on Vortex and when using cruise control I get 18.2km per litre with a/c on

[david058]

I'm curious on how many of you run your Yaris on premium fuel. I have since the day I bought my Yaris and I get 19km per litre using cruise control and A/C off. My Yaris is a 1.5 lit auto sedan. I thank that's a bit over 51mpg. For those interested in cruise control, I had an Autostrada cruise control with steering wheel controls fitted to my Yaris with excellent results. So far I am very happy with the ubit.

[why?]

I'm curious on how many of you run your Yaris on premium fuel. I have since the day I bought my Yaris and I get 19km per litre using cruise control and A/C off. My Yaris is a 1.5 lit auto sedan. I thank that's a bit over 51mpg. For those interested in cruise control, I had an Autostrada cruise control with steering wheel controls fitted to my Yaris with excellent results. So far I am very happy with the ubit.

doesn't that kill the whole point of trying to get good gas mileage? If you spend the money for extra gas you aren't going to save money by getting better gas mileage, if it does indeed help you to get better gas mileage.

[Calogero]

Personally I have done 57.9 mpg with my Yaris thats about 22km per liter
(7000km) Base 5spd no A/C with four people inside (close to 600 pounds)
summer highway about 28degree C ....average speed about 90kph.

[Flipper_1938]

!

[kingbobby83]

:smile:

Earlier this morning I filled up. Came out to 49.842 MPG... No trips, just driving my country roads to work (at small city).

Cheers!

Gas Tank mile increments (non-ethanol gas used):
1st Bar drop (8/8) > 95 mi (95)
2nd Bar drop (7/8) > 73mi (168)
3rd Bar drop (3/4) > 70 mi (238)
4th Bar drop (5/8) > 70 mi (308)
5th Bar drop (1/2) > 50 mi (358)
6th Bar drop (3/8) > 65 mi (423)
7th Bar drop (1/4) > 37 mi (460)
8th Bar drop (1/8) > 0

Tank total: 460 miles
Fuel used: 9.229 gallons
MPG: 49.842

WOW!!! The best I've got was 35.6 mpg...Ive got a sedan 5 spd though...

[STC]

You have no business being on the interstate driving that slow. You are going to get somebody killed driving 30-40 miles slower than the flow of traffic!

It is one thing to be efficient, but it is down right dangerous to drive a sub-compact that slow on the interstate. Take your hyper-miling techniques to the state roads.

Flow of traffic in Central PA doesn't exist. Here in Centre County PA the speed limit is 55 MPH on half the areas of interstates (I-99) and US highways (US-322). There are more cows per mile than people. LOL! :tongue: The drivers are relatively sane in their driving habits and don't go over posted 55 or 65 MPH limits. When I go on trips to big cities like Philadelphia or Pittsburgh... I always pick up the pace to accommodate the traffic flow there... they go well over the limits. :smile:

Yeah, a lot of my hypermiling techniques are on State and Local roads.

I lived in Miami, Florida for 28 years. It would be crazy to drive the way I do if I where still living down there! The flow of traffic there is 75-80 MPH, easily!

Cheers!

[STC]

doesn't that kill the whole point of trying to get good gas mileage? If you spend the money for extra gas you aren't going to save money by getting better gas mileage, if it does indeed help you to get better gas mileage.

I'm using premium gas only because it is hardly used and it is the last batch of 'non-ethanol' gas left here. When it runs out probably some time in November I will go back to regular. Regular is Ethanol now... :frown:

Cheers!

[why?]

I'm using premium gas only because it is hardly used and it is the last batch of 'non-ethanol' gas left here. When it runs out probably some time in November I will go back to regular. Regular is Ethanol now... :frown:

Cheers!

ah, that i can understand. haven't been able to use unpoisoned gas for a long time sadly.

[STC]

Filled my car up this evening after the Northeast rains ceased! 9.819 to fill the tank with 495 miles driven. Came out to 50.412 MPG... :smile:

What helped to break the 50 MPG barrier again was a trip over the Thanksgiving Weekend to see family and friends. Over 80% driving Highway. The other driving is my normal country roads to work. I'm also using non-ethanol gas. The gas station I fill up at still has around 1,500 gallons of premium non-ethanol gas. After they get below 500 gallons they will convert over to premium ethanol gas. Regular gas has already changed over to ethanol at this station. There is hardly any demand for premium gas... so I will keep using it until they convert. The weather wasn't too bad either... pretty mild for mid-November in PA.

Cheers!

Gas Tank mile increments (non-ethanol Premium gas used):
1st Bar drop (8/8) > 90 mi (9)
2nd Bar drop (7/8) > 70mi (160)
3rd Bar drop (3/4) > 55 mi (215)
4th Bar drop (5/8) > 90 mi (305)
5th Bar drop (1/2) > 60 mi (365)
6th Bar drop (3/8) > 60 mi (425)
7th Bar drop (1/4) > 70 mi (495)
8th Bar drop (1/8) > 0

Tank total: 495 miles
Fuel used: 9.819 gallons
MPG: 50.412

[Eatoman]

Gas Tank mile increments (non-ethanol Premium gas used):
1st Bar drop (8/8) > 90 mi (9)
2nd Bar drop (7/8) > 70mi (160)
3rd Bar drop (3/4) > 55 mi (215)
4th Bar drop (5/8) > 90 mi (305)
5th Bar drop (1/2) > 60 mi (365)
6th Bar drop (3/8) > 60 mi (425)
7th Bar drop (1/4) > 70 mi (495)
8th Bar drop (1/8) > 0



Question: one thing I don't get is why every bars' mileage is significantly different from the other? When I first bought my Yaris I saw 8 bars, so I assumed that I'd be able to get around 90 to 100 km per bar or around 800km per tank. Man was I surprised when I saw the 3rd bar drop at around 50km! :thumbdown: It would've been great if all bars dropped at the same mileage.
I'm just sayin'....

[STC]

Question: one thing I don't get is why every bars' mileage is significantly different from the other? When I first bought my Yaris I saw 8 bars, so I assumed that I'd be able to get around 90 to 100 km per bar or around 800km per tank. Man was I surprised when I saw the 3rd bar drop at around 50km! :thumbdown: It would've been great if all bars dropped at the same mileage.
I'm just sayin'....

I know what you are saying... :wink:

You can't calculate each individual bar the same amount. The physical properties of the plunger is the reason for the different mileage points. Usually the first bar will be the largest... the tank can be topped and the plunger is at its highest level. I got 90 mi on my first drop. During my third into fourth bar drop I got 90 mi reading too. I was travelling to my destination on my trip at this time. On my sixth to seventh bar drop I was travelling home... the reason for the 70 mi reading. The fifth bar drop was highway driving visiting friend after I reached my destination while on Thanksgiving vacation break. :smile:

Cheers!

[Eatoman]

I hear ya! Still, the fact that you can get over 50 MPG on a single tank is quite remarkeable! Kudos to you!

Hopefully I'll be able to break to 50mpg barrier one of these days! I've been doing alot of reading in the fuel economy thread and have been applying many of the techniques I learnt on my daily commutes to and from work (about 50km daily) and the most I've accomplished to date is a mere 37mpg....How do you do it??? Does your Yaris run on water?? LOL!

[alch3miss]

Best I've ever had was in the 48-49 range.. cracking into 50+ is awesome!

[STC]

I'm not your 'normal' driver. I drive extremely gentle on the accelerator and mostly highway miles. It helps that my driving hours are when the roads are empty. I can drive at my own pace. Also, non-ethanol gas for now... helps in MPG.

Fuel Efficiency and the Yaris:
http://www.yarisworld.com/forums/showthread.php?t=5979

Using DFCO to increase your MPG:
http://www.yarisworld.com/forums/showthread.php?t=4248

These are two (2) excellent Stickies! IF you follow the hypermiling techniques in these stickies you will definately get the miles... :headbang:

Cheers! :smile:

[marcus]

this is so close to what im getting but in kilometers..lol seriously are you sure its not in km.. coz every single bar is identical to my km/bar...in winter ofcourse


Gas Tank mile increments (non-ethanol gas used):
1st Bar drop (8/8) > 102 mi (102)
2nd Bar drop (7/8) > 86 mi (188)
3rd Bar drop (3/4) > 50 mi (238)
4th Bar drop (5/8) > 62 mi (300)
5th Bar drop (1/2) > 74 mi (374)
6th Bar drop (3/8) > 72 mi (446)
7th Bar drop (1/4) > 52 mi (498)
8th Bar drop (1/8) > 0

Tank total : 498 miles
Fuel used: 9.662 gallons
MPG: 51.542[/QUOTE]

[STC]

this is so close to what im getting but in kilometers..lol seriously are you sure its not in km.. coz every single bar is identical to my km/bar...in winter ofcourse


Gas Tank mile increments (non-ethanol gas used):
1st Bar drop (8/8) > 102 mi (102)
2nd Bar drop (7/8) > 86 mi (188)
3rd Bar drop (3/4) > 50 mi (238)
4th Bar drop (5/8) > 62 mi (300)
5th Bar drop (1/2) > 74 mi (374)
6th Bar drop (3/8) > 72 mi (446)
7th Bar drop (1/4) > 52 mi (498)
8th Bar drop (1/8) > 0

Tank total : 498 miles
Fuel used: 9.662 gallons
MPG: 51.542[/QUOTE]

Maybe America pulled a fast one on all of us and decided to go the easier measurement way... metric ;-) :wink: :eyebulge:

Canada winter... ouch! Warmer in this latitude.

Nope... These are US Gallon/Mile log figures... Really :smile:

Cheers!

[marcus]

wow......

[Eatoman]

Yup, these loooong canadian winters really don't help mileage....