hey whats happenin.. i have a 2000 celica gt and get aleast 35mpg every gas tank

(not bad for a sports coupe).. the best things u can do is to make sure u change ur oil every 3000 miles, have a clean air filter, and tires are inflated properly. You could probably get a drop in K@N filter that should get u a mile or 2 better.. thats the cheapest route to get better gas mileage.. my celica gt is stock probably wont do much to it.. dont want to hurt my gas mileage.. probably get a exhaust later on, dont want anything loud though