All I do is drive around town in my GTO and I get a whole 11MPG. Something sounds weird about that to me. I drive very lightly too. I normally shift around 2200rpms. What are your shift points and gas mileage? Also, just today, I went around town racing a modded bug and my gas mileage went up to 13mpg. That is after some full throttle blast. Anyone else having these weird problems?