It will depend on where and how you drive. I am averaging 24.5 right now. Most of that is from Woodstock to Elk Grove via I90. During the winter it will drop to 22-23. When I drove it up from Texas, when I bought it last year I got 26, but I was running 75-80 most of the way. Probably would have been better if I had backed it down some. No idea what you'll get around town.