Originally Posted by maxoutracer

i use shell for the past years and i love the mpg on my teg range from 25-35

Originally Posted by Dªv£

i usually pump arco/ampm 87 octane. slow as heck but my car is a pos so i dont care.

now, today i pumped 87 chevron on an empty tank and on the way home and i noticed a lil bit more umph in the car. psychological or real i dont know. do you get more mpg with chevron? discuss your experiences h:

Originally Posted by radkermit

The way I understand it is Chevron uses detergents in the gas that help clean out the fuel system. Any variability in mileage would be due to better delivery which you could still get if you just used it like every 5th tank or something, and of course other variables.