What helps to get better gas mileage? I just ran through some Prestone Fuel system cleaner thingy and it worked while it was in the tank but 2 tanks later its back to what it was before. Any ideas??

I've tried diff brands of "injector cleaners" never really noticed much of a diff...maybe you can try to have them cleaned at a garage...not 100% sure if that does any good either. lol it should.
Is your car auto or manual? tons of things can affect your mileage...tire pressure for one.

automatic... im lazy!! lol

did you say tire pressure?? what the? well what is it supposed to be? its on the side of the tire isnt it?

What kind of mileage are getting right now? I get about 28 in the foothills of California, lots of hills and turns. On the highway I get a little better, around 35 or so. The only mod I have so far is a Flowmaster muffler, I used the injector cleaner additive about 3 tanks ago, didn't see a difference though. Maybe they are as clean as they are going to get or it just doesn't matter.

ALL gas sold in the states (at auto gas stations) have some type of injector cleaner. unless your car sat for a LONG time without running, i think your tossing away your money. my 96 sat for a year and runs fine. still no need for cleaner.
for tire press check the book, i run mine at 35 and check it every time i fill-up. look in this forum for milage, big post about a week ago. good luck.

about 23!! 28 tops!! and my car sees a hill maybe twice a week. mostly highway too.
and ive had the car for a year and a half already. but i think it did sit for a while before that. any ideas?? gas is like 3.39/gal man!! lol

Theres always buying a higher flowing exhaust system, and a higher flowing air filter. That is usually good for at least 1 mpg.

4 mpg? give it a TOTAL tune up and write back. that is WAY bad mileage.

THey were stating the price of gas, they said they get 23-28mpg.