Originally posted by racingtheburg
sad part is i knew a friend that did all the gas delivery and it was all the same gas for all the 83 89 93or w/e other numbers there are the only thing that makes it higher is this solution that he put in after he fills the tanks and btw the solution he puts in is only like a teaspoon.but i might be wrong
Very close.
There is one tank of high test and low test at every gas station. The pumps mix the two to give you the 3 or 4 different octane fuels.