as long as it's a Top Tier gas, as was posted by Ryan, you should be fine. Not saying other gas brands are not good, but at least the Top Tier gases meet some sort of standard to be graded. With others, you might not know exactly
what you are getting.
as far as brands between the top tier ones, personal preference.
I use Chevron because the local station that sells that brand, still comes out and pumps the gas for you.
How often do you see that now days?
