Yaris Gas Problem

[jamal1984]

I just filled up the whole tank of gas couple days ago, i got a Sedan 5 speed version. Today i look at my gas tank and it only has 3 bar left, and i only drove 220 miles. So i dont think Yaris really do 40mpg as they advertise it, and another weird thing is. I was left my car running, while i'm stepping out for a smoke, 5 minutes later i got back in my car and it went back up to 4 bar of gas.

Is it normal to most of you guys?.....

[maximapitko]

it's normal for the bars to go up while the car is idling-it's happened to me as well. Also, this car will get 40mpg+ if you never go beyond 3100rpm and no more than 65mph. My car will drop to 36mpg if I drive it at 75mph constantly. Also, it doesn't seem to matter that much if I am in town or highway-I get 38-39mpg "in town" if I don't go beyond the above rpms and speed. One more things that affects our cars a lot is wind. Last weekend I did a 187 miles distance in 2 hours sharp. It was constant 95-100mph driving with a moderate head wind and I got.........24mpg :)

[jamal1984]

man no wonder why, on highway i'm always do 80mph and always go beyond 3100rpm for the first and second gears.
Any more ideas anyone?

[kdctuning]

I just crossed 200 miles and I am at half a tank, and I have not been kind to the gas pedal ( I do about 80 to 90 on the highway about two or three times a week ).

[jamal1984]

i drove to works everyday on highway about an hour back and forth, and yeah 80 and 90mph rpm from 2000 to 4000 most of the time. I never pay attention to the gas until i got my Ground Kit and Muffler installed.

[maximapitko]

There isn't really any perticular reason for the 3100rpm. I asked around here and it seems like nobody thinks that something special is going on at this moment. But, I can swear that my engine sound changes dramatically at 3100rpm and I've noticed a relation with my mpgs as well. You can hear it best in 2nd gear at wot starting at 2000rmp(example). Anyways, it turns out that the yaris is an excellent city car but just a good one on the highway. My ex 89 maxima with a 3L V6 and 3500 pounds was at solid 32mpg on the highway doing 80mph while giving you a lot more space and directional stability(I really hate the directional stability in the yaris-you always have to fight to keep it going straight).

[ChinoCharles]

The title of this thread is an oxymoron.

[eco]

Ha,Chino never fails.I have gotten 42.629 mpg before,that was in the summer time,I didnt use ac,driver window cracked alittle.Now I get around 38-40 and Im still traveling at about 65-80,70mph mostly,I drive 95% highway,I use the ScanGaugeII for accuarcy in time left before empty,and its a wonderfull and useful gadget for alot of things.I have gotten 402 miles on a tank before I filled up,and still had like 35 miles left on SGII display,and thats like 40mpg,I got the tank that low just to see how accurate the SGII and the car gauge was.So yes our cars will easily get 40mpg in the right conditions.

[Kaotic Lazagna]

for me, i can get 120 mile using the top two bars. i also back the statement about driving 65 and 75 mph.

[gonzo452001]

if the can stand to drive 50mph you can get about 45mpg but who can do that

[ECHOKnight2000]

^^^Actually I achieved 45mpg going about 60-65mph, so you don't have to drive too slow. Its the highest I've gotten in my car to date. Obviously there are other factors such as weather and traffic but if its a nice sunny day (little or no wind) and traffic is free flowing then it shouldn't be too hard to get to that number, epecially if you cruise control.:thumbsup:

[sroberts]

I have a question, does really cold temps affect the gas mileage as well? Our winter has been pretty harsh so far and since the cold has started I have noticed I have lost about 2 mpg. Im sure constant battling of the snow covered streets doesnt help either. Your thoughts?

[eco]

Yes,cold weather will effect gas milage.They tell you to fill up early in the morning because you will get more gas(it sorta condenses),so if its cold all day and your gas is at that closer state,you will burn more fuel,plus the air is thicker,so its harder on your car to get momentum.The perfect conditions on the car would be a cool day around 65-75 degrees,and you driving about 63mph,because Ive done the math,I have the numbers wrote down somwhere if you all want them,but at that speed,the rpms are the lowest compared to any other speed I test from 20mph-100mph,and that speed is based on speed and rpm ratio to get to that speed and keep it constant.

[jamal1984]

how about Cruise? is it true that it's suck more gas if you use cruise all the times?

[sambo42xa]

Ok, ok, I guess I'll add to this also. Bought mine back in Sept. and been getting 35-38 mpg while driving 95% hiway at 75mph. What I have noticed now since we have the cold...I've been letting the car warm up for about 10-15 minutes before I leave to and from work and I've been getting crap for mileage. Don't know if it's the cold (this factor was mentioned here a few threads back) and/or letting the car idle for a short period of time. When I was down to the last two bars, my trip would be around 300 miles. Now, it's like 250! We'll see on my next fill up since I've been going 65 mph on the hiway for a test to see if there is a difference.
Oh, something else I noticed! The cold snaps we had last week with the 0 degree temps.......when I turned the key to "start" position and let the key go to fall back into "on" position, the starter was still trying to turn over for like 2-3 seconds longer as if the key was stuck in the "start" position. We are back in the 20 degree temps (for now) and it has not done it since. Just thought I would add that also.
sambo42xa
Southern, NH USA

[eTiMaGo]

when I turned the key to "start" position and let the key go to fall back into "on" position, the starter was still trying to turn over for like 2-3 seconds longer as if the key was stuck in the "start" position. We are back in the 20 degree temps (for now) and it has not done it since. Just thought I would add that also.
sambo42xa
Southern, NH USA

This car has a "crank hold" function which will basically keep on cranking the engine until a certain amount of time has passed or the engine starts up, nothing to worry about :)

[sambo42xa]

This car has a "crank hold" function which will basically keep on cranking the engine until a certain amount of time has passed or the engine starts up, nothing to worry about :)

Anyone else.....second opinion????
Thank you,
sambo42xa
Southern, NH USA

[jamal1984]

my first two bar is 100 miles maximum not 162 like others, i guess COLD is part of it too, i don't know, i guess i have to wait until summer to see any changes, but i turn my AC on all the time in summer. So i really don't know.

[Violin]

This car has a "crank hold" function which will basically keep on cranking the engine until a certain amount of time has passed or the engine starts up, nothing to worry about :)


He is correct sir.

[Nutzoids]

I made a Spread Sheet! It seems the sooner you pump your gas, the better MPG you get!

:evil:

[Lafiro]

Im still wondering what caused my drop from 35mpg to 30, and then down to 27 which is what it is now.

This last tank I did average 27.5mpg, and I was driving normal the entire tank, something I rarely EVER do!!!! SO WHAT GIVES!!!!!

My guess is the cold weather?

My dealership told me when I was in for an oil change, that it was due to my having wider tires/larger rims.
So I put the stock back on for 3 tanks of gas, did the same 27average.
I out the rims back on, do a tank, and I get 28!
Stupid dealership guy I swear.

Hmmm, yes I can't wait till the summer, so I can get that MPG up again.

Also, maybe mine will rise when I switch to synthetic/change spark plugs??/add fuel injector cleaner in abotuer a month or two?

[eTiMaGo]

Did you ever run very very low on fuel?

[hasher22]

Well the manual says always have ur tank half full or more. Well i think it said that if i remember right.

[ChinoCharles]

I think it says don't let it go below two bars.

[St_G]

Really? I've found that the last bar basically represents (just over) one gallon, as filling up shortly after it starts blinking means that I can put in nearly 10 gallons exactly. In our cars, that's still quite a few miles left with ONE bar; I wonder why they think we should refill at two.

I think it says don't let it go below two bars.

[jamal1984]

i don't know about you guy, but when my last bar start "BLINKING" i'm gonna fill up the whole tank of gas right away, i really have no idea how many more miles it can handle, but normally the whole tank of gas of my car maximum is 279 something until when it's "BLINKING". But i drive like crazy most of the time, RPM sometime go up to 4 or 5.

So in my opinion is YARIS SEDAN NEVER EXCEED 40 MPGs like the advertise.
hahhah i dont know, i'm still confuse about my car.

[boris13]

Are we talking about automatics or manuals here? The manual (5-speed) version is always going to get better mileage if a lot of the driving is city driving.

Also, doesn't winter blend gasoline always yield worse mileage than the summer blend?

[sam07yaris]

ur engine will start getting misfires if ur low on gas and shortly after umm like 5 minutes ur S O L on the road

[ChinoCharles]

http://yarisworld.com/forums/showthread.php?t=2692

Look on the second page.

Over time, you will risk damage by letting your tank run dry on a regular basis.

[maximapitko]

To the guy that is getting 27-8 mpgs-there is something wrong either with the way you drive(less likely) or with your car(more likely). It is true that cold weather leads to a LITTLE worse fuel economy but you are way too off. I would take it to the dealer completely stock and make them go over it. Aftermarket wheels will not cause such a dramatic drop in mpg unless you are running a really big size. In MN the weather is pretty cold and I still get consistent 36+mpg combined.

One more thing- I don't understand why toyota(excellent reliability) would design a fuel pump that is essentially overheating everytime you drop down to 1 bar. It doesn't make any sence to me and it sounds a little like an urban legend. I've always used up all my tank before fill up on all my cars without a single problem ever because of that. Just my 2c guys :iono:

[jamal1984]

yeah, i'm gonna take my yaris back to the dealer and let they see it again and see what are they gonna say about it, and if they say something about my 15inch aftermarket wheels that fuck up the gas like that, i'm probably gonna slap in his/her stupid face.

Give it up for YARIS 40MPG YEAH

[dansides]

i got 33.8 last road trip avg 55mph my echos get 39 to44 mpg i thought the yaris would be as good i use a scan gauge making a 115 mi trip today will ck again maybe be better:burnrubber: :burnrubber: :burnrubber:

[Lafiro]

OK, yes once I dont know why I ran out of gas, and had to push the car to a gas station, put gas, and after that day it went from 32 down to 24mpg. I took ti to the dealership and they blamed it on a bad tank of gas which looked/smelled bad.

Then a few weeks later and multiple tanks of 87/89/91 octane, still the same 25-27mpg.

I took my 2 subs and amp out, my donut, and put my stock tires/rims on; and It only did 1mpg better on average for two tanks.

I said to hell with it, put my 205/40/17 back on, and still got the 27mpg.

Now, I got pissed, went back a few weeks ago, and they did not want to do anything really, they just told me "the uce didnt report any errors so nothing can be done; and that the road test showed everything within ""spec""."

Well, its been a while now, and its still doing bad on gas.

I said to myself, no more driving at 80mph on the hgihway, and no more reving high betwen gears (like 3-4.5k)

I went normal the whole tank, mostly highway driving at 50-60mph. And guess what!!!!!!!! Still the same damn 27mpg. WOW I should imagine that with driving normally like an old person I should atleast seen 36+mpg average, but no.

When I first got the car, I was getting 35-38mpg average. One day went on a long trip and did 90mph the whole time, probably 250miles. I ended with 36.5mpg that day.

Now I do 60mph and dont rev high anymore, and somehow Im down to 25-27mpg range? What the F is this about.

Yes I have a 5door automatic.

yes I made the mistake of letting it run out of gas.

Yes I make the mistake of letting it run down till it flashes fast ALL the time.

So What is wrong, how can this be fixed? This way once its fixed I never again let it drop under 2-3bars.

Please dont harass me on my stupid mistakes, I'm already pissed enough at everything.

Thank you.

[jamal1984]

man.... the same as my, nothing i can do about it at the moment.

[Go4th]

Ok, ok, I guess I'll add to this also. I've been letting the car warm up for about 10-15 minutes before I leave to and from work and I've been getting crap for mileage. Don't know if it's the cold sambo42xa
Southern, NH USA


Whelp that means that every time you start your car (every day for work or what ever) you are getting 0 (zero) mpg until you leave... so for 10-15 mins of the car running you are going no where and putting zero miles on your car for 10-15 mins of gas...
so decide if you want to get into a cold car and drive for 10-15 mins until heat starts coming out and get better gas mileage or get into a warm cozy car and be comfortable for the whole time your in the car.

Who really expects to get the same gas mileage if you leave your car burning fuel for 10-15 mins going no where 5 days a week?

Why don’t you do this.. Lets assume that you drive 60 mph for 10 mins.. 1 min a mile.. 10 miles.. If you fill up Sunday night and you fill up Friday evening and you warmed up your car every morning for 10 mins.. That would be 50 more miles you gave away just to warm up your car. Add that to your calculation.

there are extra factors as far as rpm and the actual amount of fuel burned but this would be a reasonable amount to add in to help you add in fuel your wasting in your drive way. This is the general idea of city/hwy mpg.. City you stop a lot, sitting in traffic, your car is running and your going now where putting, zero miles on while burning fuel.

I think I just put some sort of reasoning to your 50mpg drop.

[Kaotic Lazagna]

hmmm, try doing this...shift between 2k and 2,500 rpm in every gear (if you can), and don't drive more than 65 mph. it works for me. i'm still staying between 37 and 40 mpg and it's freezing cold here.

[Kaotic Lazagna]

oh, and i average about 60 mph.

[eTiMaGo]

Well, it happened to me too, basically he ECU seems to go into a "safe mode" after you run out of gas and runs the fuel mix very rich.

It took me almost one full tank after that for it to reset, but I think you can reset the ECU by unplugging the battery for a while too.

See if that works!

OK, yes once I dont know why I ran out of gas, and had to push the car to a gas station, put gas, and after that day it went from 32 down to 24mpg. I took ti to the dealership and they blamed it on a bad tank of gas which looked/smelled bad.

Then a few weeks later and multiple tanks of 87/89/91 octane, still the same 25-27mpg.

I took my 2 subs and amp out, my donut, and put my stock tires/rims on; and It only did 1mpg better on average for two tanks.

I said to hell with it, put my 205/40/17 back on, and still got the 27mpg.

Now, I got pissed, went back a few weeks ago, and they did not want to do anything really, they just told me "the uce didnt report any errors so nothing can be done; and that the road test showed everything within ""spec""."

Well, its been a while now, and its still doing bad on gas.

I said to myself, no more driving at 80mph on the hgihway, and no more reving high betwen gears (like 3-4.5k)

I went normal the whole tank, mostly highway driving at 50-60mph. And guess what!!!!!!!! Still the same damn 27mpg. WOW I should imagine that with driving normally like an old person I should atleast seen 36+mpg average, but no.

When I first got the car, I was getting 35-38mpg average. One day went on a long trip and did 90mph the whole time, probably 250miles. I ended with 36.5mpg that day.

Now I do 60mph and dont rev high anymore, and somehow Im down to 25-27mpg range? What the F is this about.

Yes I have a 5door automatic.

yes I made the mistake of letting it run out of gas.

Yes I make the mistake of letting it run down till it flashes fast ALL the time.

So What is wrong, how can this be fixed? This way once its fixed I never again let it drop under 2-3bars.

Please dont harass me on my stupid mistakes, I'm already pissed enough at everything.

Thank you.

[hystria]

my first two bar is 100 miles maximum not 162 like others, i guess COLD is part of it too, i don't know, i guess i have to wait until summer to see any changes, but i turn my AC on all the time in summer. So i really don't know.

well, 2 bars (10liters) for 100 miles that's really good. maybe some one else did run 162KM with 2 bars, which is the same. you will be able to run 400miles/tank which is excellent considering your cruise speed end shifting point being both around 3000rpm.

[hystria]

What I have noticed now since we have the cold...I've been letting the car warm up for about 10-15 minutes before I leave to and from work and I've been getting crap for mileage.

well, Yaris engine takes a lot of time to warm up. the higher the engine revs, the faster it warms up. Now, imagine leaving a cold engine to run on idle for 15min. What happens ? The engine runs most of this time cold, thus consuming more gaz, polluting more (as the catalytic converter is still cold and doesn't reduce any emissions) and finally it runs with colder oil and that means poor lubrication and more wear. The best thing is to let it run say a few seconds then start driving and shift at a moderate rpm - say 2500. I also use to turn off the fan while the cold engine light is still on, although at 0F it gets a little cold inside :laugh:

[sambo42xa]

Well, first let me say thank you to All who responded to my fuel loss problem.
Go4th pretty much made it clear as to where all my gas was going. The reason for letting the car warm up was not for my benefit so I would be all cozy and warm for the ride to work but for the cars benefit. Hey, screw it....I'll just get into the cold car. It don't bother me. Isn't it not good to start your vehicle up in cold cold weather and just take off? Actually, I heard that you can do that but you would have to drive at a slow rate for about a mile or so for the vehicle to "warm up". Maybe that's what I'll do next time.
Again, thnx to Go4th and hystria for your feedback. :thumbsup:

sambo42xa
Southern, NH

Vrooooommmmmmm:burnrubber:

[hystria]

Yes, it is a good idea to keep a low RPM for the first mile or so - however too low RPM is not good either, try not to drive at less than 1500 RPM - engine cold or warmed up. This will help the fuel consumption. To get the best mileage with this car, it's better to cruise at 1500 RPM and to shift at 2500 RPM.

One more thing just to understand better the Yaris engine... Yes it can deliver very good fuel consumption... but only when the car is not fully loaded and especially if it is driven very smooth. Otherwise it will eat almost as much gasoline as a bigger engine. And sadly it is not the most fuel efficient on the highway as the engine keep reving at 3000rpm or so :frown:

[ChinoCharles]

And sadly it is not the most fuel efficient on the highway as the engine keep reving at 3000rpm or so

Yeah, I know... 27 MPG really sucks. :rolleyes:

[PetersRedYaris]

I agree with etimago, disconnect your battery to reset your ecu and see what happens.

Just for comparison, I drive 100 miles per day and get between 28 and 34 MPG. I drive 65 MPH north (head-wind) and 75-80 south (tail-wind). Not very good I know, but, I do have a 12 cubic foot box and rack on my roof.

[sambo42xa]

Yes, it is a good idea to keep a low RPM for the first mile or so - however too low RPM is not good either, try not to drive at less than 1500 RPM - engine cold or warmed up. This will help the fuel consumption. To get the best mileage with this car, it's better to cruise at 1500 RPM and to shift at 2500 RPM.

One more thing just to understand better the Yaris engine... Yes it can deliver very good fuel consumption... but only when the car is not fully loaded and especially if it is driven very smooth. Otherwise it will eat almost as much gasoline as a bigger engine. And sadly it is not the most fuel efficient on the highway as the engine keep reving at 3000rpm or so :frown:

So that's why I'm losing fuel......must be the weight I'm gaining from those darn donuts I'm eating on my way into work in the mornings! :bellyroll:
(chuckle,chuckle......)

sambo42xa

[Go4th]

darn donuts :bellyroll:
(chuckle,chuckle......)

sambo42xa

lol