[WolfpackS2k]

Originally Posted by CAMBAM_6

I read somewhere that it doesnt matter what brand you get as long as its the same rating its the same fuel for example; chevron 91, shell 91, and thrifty 91....does anybody know the difference between brands??? and proof??? And another question is there a reason why pretty much 91 is the highest rating available in California yet other states get 93 and other choices???

I've heard that the gasoline is that goes to the stations can be whatever random stuff. But that each different brand (shell, chevron, etc) adds their own special type of detergents and additives. I would imagine with 87 or 89 octane the difference is quite minor. Biggest difference would be 91/93 (whatever the top fuel available is for the area)