Something aint right with the gas

[jambo101]

Ever since the cold weather started my gas mpg has been about half of what i was getting in the summer, Summer i could get 125kms out of the first bar,now 125kms is taking 3 bars, a Tankfull in the summer was giving me close to 700kms now i'm hitting the last bar at 400kms
I never noticed that much of a winter mpg drop in any car i've owned over the 40+ years i've been driving,(conspiracy theory only)and am now starting to think the gas companies are putting something different in the gas so as to make for crappy gas mileage so we buy more and they make more money.

[slvryaris]

I noticed a drop in mine also, but I have been playing around with the intakes though, but they shouldnt make that big of a difference. It might be cause I am using my heater alot though.

[nemelek]

I had a drop in milage also. It's not as cold here but the drop in tempature has made for longer warm up times. It's takes a lot more fuel to turn the gears when the transmission oil is -5 rather than 70 degrees. It might not help but try a bottle of "HEET" for your next fill up.

[SIPNGAS]

I don't know about in Canada, but here in the winter they release the heavier, "winter weight" gasoline. I know exactly when that's in the tank because there is a marked drop in my gas mileage. Then, pair that up with longer warm ups, revving the engine if you get stuck or to get from a dead stop it really effects the mpgs.

[talnlnky]

remember defrost uses the A/C so all those times you use defrost you are chewing up something like 10-20% more power... thus gas will be burnt quicker.

My Mpg went from 43-44 down to 40. I have to use defrost now, and the temps are around 30-40F. The hit would've been worse, but I was running 32-35psi before, and am running 44psi now.

I'm hoping once spring comes that with the higher psi I'll finally be able to break 45mpg... I've come soooo close at 32psi.

[jambo101]

I expect less than stellar mpg readings every winter but for some reason its worse this year. First couple of winters with my 01 Echo mpg went down to mid 30's but now the new Yaris and the old Echo are both struggling to make 30mpg something has changed.

[YarisSedan]

Same here. I get about 24mpg now. But thats cause im in heavy traffic now instead of my normal freeway commute. But id like to see atleast 30 still

[aca72]

Originally Posted by SIPNGAS

I don't know about in Canada, but here in the winter they release the heavier, "winter weight" gasoline. I know exactly when that's in the tank because there is a marked drop in my gas mileage. Then, pair that up with longer warm ups, revving the engine if you get stuck or to get from a dead stop it really effects the mpgs.

Yep! The culprit is the "winter" formula gasoline.

[joninatl]

more ethanol in the fuel = lower performance and mileage

[Kal-El]

Colder weather always affects gas mileage. The question is how much. Aside from the difference in gasoline, the engine simply runs less efficiently when it's cold. Plus, always running the heat must play a role.

[msfire671]

well mines ALWAYS gonna stay the same...
no winter here on GUAM....=(
would be nice though!

[voodoo22]

Originally Posted by jambo101

I expect less than stellar mpg readings every winter but for some reason its worse this year. First couple of winters with my 01 Echo mpg went down to mid 30's but now the new Yaris and the old Echo are both struggling to make 30mpg something has changed.

Has it been as rainy/snowy and windy in Montreal as in Toronto? The roads have been soaked almost every day the past few months around here and that's a huge extra hit to your FE when you're constantly fighting puddles and wind on top of the winter weather.