I will be extremely happy if I can get the car to average 31 to 32 MPG, I would say that is pretty good for a 2002 Pontiac Grand Prix GTP. Granted I do drive conservative using cruise control on highway, don't expect to much around city. I usually just use my Red Grand Prix GT which has 80K and keep my GTP garaged. It has 58K on it and don't like to drive it, weekends and only when the weather is good.
Quote Originally Posted by REDCOMPG View Post
^ don't get your hopes up much it won't add much as far as mpg goes if any.