[Camaro_Corvette]

I would first check your tires. My mom just bought an Impala and she was getting terrible mileage in it, well er, for an impala. I checked her tires and they were all above 40. Door asks for 32? So I put the tires to what the door and the manual says to put in it. She hasn't ran a tank of gas through it yet, so hopefully she gets better results. So far the computer is saying that we are breaking the 30's now consistently. I hope it is right.