[RPM300C]

10 mpg around town? Either you have terrible driving habits or there is something definitely wrong with your car. I average 17-18 mpg around town and 23-24 mpg on the Interstate. I don't drive it like there is an egg under the accelerator, either. I enjoy steppin' on the loud pedal once in a while.

What does the inside of your exhaust tips look like? It is all black and sooty? If so, you're running too rich.