Originally Posted by siclike7

He said long light...a 3 minute light at idle is going to use way more gas than if you cut the car off and restarted it.

But just as been stated before. A decent filter (K&N drop in or some type of CAI/RAI), shifting at ~2000 rpm, minimal acceleration from stops, not going over 55-60, and even a tune for gas milage will do wonders.