Anybody else experiencing a sharp drop in fuel economy a it gets colder? During the summer I was averaging 26mpg going to work. Now I'm only getting about 22mpg. I've always gotten a bit lower mileage in the winter with other cars, but never this severe of a drop.

 

Its normal.

 

Are u always on the highway? I never get that good of mpg... Only when I'm cruising on the highway I'll get 23-24 mpg. City and highway combined I never get more than 20 and I'm in Florida which isn't that cold to begin with..

 

That is what I figured. Considering the MAF, turbo, and Mitsubishi's penchant for running overly rich anyway.

 

Yep 95% highway to work. Cruising @ 70-75mph.

 

Did you change your tires? Also it can depend on how long you warm up your car before you start driving.

 

I noticed the same as well. I was averaging 23-24 in the summer to fall and now 19-22 currently.

 

I noticed a drop too... not THAT severe, but about 1-2 mpg. But then again, I also changed my tires to 235s and oil to 0-30.

 

I am getting 12.5L per 100Km or approx 19 miles per gallon however my commute is 30km each way in stop and go rush hour traffic.
Warm up times are minimal 1-2 minutes at most

 

funny, i was wondering the same thing myself. I noticed my average went from 20-21mpg to 18-19mpg.

 

Could partially be due to the cold and dry air being better performance wise so the car is burning more fuel. =)

-Taranis

 

Mines gone down 2-3 MPG, but it is -25C and the car is idling for 3-5 minutes to warm up. I've never owned a car that didn't drop in the winter, so that is pretty normal from the extra idle time and that cars use much more fuel until the hit operating temperature.

 

colder air, car runs better (higher boost), burns more gas

 

-The density of colder air requires more fuel.
-Warming up your car requires more fuel.

 

I assume u warm up your car for a few minutes every morning? If yes it sits there idling which uses lots of fuel. Also if u have steels and winters that will affect your MPG. And as already stated the density of the colder air.