1.Get nitro fill in your tires as opposed to regular air, not only does it help MPG But it also helps with tread wear
2.Get urself a Cold Air Intake, a cooler engine is a more efficient engine
3.Dont slam the Gas pedal, go fast but build the speed up
4.Tint windows really dark

, it helps to keep your car cool inside so you wont have to blast your AC
5.Dont carry a whole bunch of stuff in your trunk, the less your car weighs the better the gas mileage
6.Keep up with regular maintenence and make sure u have good spark plugs