I know for a fact i shouldn't be getting 8 miles to the gallon.
how should i improve my gas milage?
anything i can put into my car to make my gas go longer,
however, I don't want to loose any Horsepower.

 

From the information you've given, the best advice I can give is to try getting into the car from the passenger side. Let us know how it turns out.

 

if your car is stock you should be in the 15-25 range depending on the engine, transmission, and gears. definitely need a lot more info, ie: engine displacement and induction, transmission, gears, modifications, engine error codes, missing/hacked off emissions equipment, anything else you notice (loss of power, strong fuel smell in exhaust, etc)

 

ElMuerte Is righT, and also check to see if u need a new 02 sensor(oxygen sensor)..and if u drive like a maniac always floring the pedal then ur gona get about 8MPG lol

 

might be my problem....
lol

only problem i can think of, is there's a whole in one of the pipes leading to the exhaust....

i didn't think it was a problem, just smoke leaves there instead of the muffler.

 

ohh nahh thas not the problem..unless u have a whole deeper into the pipes that trasfers the gas into the engine..