Mooch, your only getting 20mpg? I feel grateful and lucky even when I average 20/21 with the turbo, which naturally uses more fuel than a normally asperated. Hegemon, be prepared to loose some fuel mileage with what your planning. Big rubber just adds drag and weight to the rotating mass, making it harder for the engine to acclerate it. Which means your going to use more throttle to get it going, albeit, even slower than normal. Raising your Trackick just makes it more of a "sail" in the wind, creating more drag, and even less milage. If anyone's figured out how to do our most common mods ( lifts and big rubber, etc,) and still get close to stock mileage, PLEASE clue me in. And yes, I'm geared.