Although I have never checked my mileage by doing the math at fill-up... the computer calculates it to be 15.9 over the life of the car to this point in time.

Considering how hard I drive this car I think it is pretty darn good. Pretty much always accelerate, brake, corner and in general drive harder and faster than any car I have ever had the pleasure to drive. Gas mileage for me was not a factor in buying the car though. Thats what the Neon is for...