Only getting 27 mpg!

paul2349

I know that in extreme cold, mpg will suffer but I am averaging 27 mpg on trips of approximately 10 miles combination hwy/city. The temperature in Chicago has been below 10 degrees.

texases

Caused by the extreme cold weather + short trips. What did you get when the weather was warm?

Mr_Shiftright

Yeah, those are the two worst possible combinations for MPG. No doubt you need longer warmups and run longer on a rich mixture; also the engine doesn't have time to reach peak efficiency.