I was talking to a guy when I was at the dealer today while I was getting my block heater installed and he said he averages right around 40 mpg on his 98 mile roundtrip commute. When he picked up his car and got in the dash showed 40.7! He also said his best was on a 270 mile hwy trip he touched on 50 for a while and ended at 48 and change.
Not bad...