Gas mileage getting worse by the tank

the98stang said:
I would blame a vac leak or something mechanical before I blamed GAS....c'mon people...

Um GAS is a very common reason for decreased mileage.

A bad batch, a different stations mix, whatever... all of it can affect mileage greatly.
 
jstreet0204 said:
Winter gas is oxygenated. The extra oxygen in the gas displaces the fuel, wich means there is actually less fuel per volume, and therefore take more fuel to produce the same energy.

I said I would suspect a vac leak before gas. I never said the gas wouldn't affect the mileage. Just my .02
 
our cars only have a 14.7 gal gas. so you are not going to get a lot of miles to a tank. i have a 98 and i get something like 265 city and 330 highway, and i have 3.73 geara. and yes i did fix the speedo- odometer.