gas station gas

:D I always buy Amoco ultimate gas because it outlasts outer gas and it is the highest octane I have found I wondered if there was any better gas out there :)

Don't know. I use Unocal (76) in 91 octane. Works fine. I had an old suburban with a 383 engine in it. It had high compression. I had to run 91 in it all the time or it would ping and knock. The only hi test that wouldn't pass the ping test was Arco 91. I think it starts out as 91, but it may be older gas than most. Octane rating drops over time. Maybe not much, but my suburban knew the difference.



I use 93 octane at the local shell stations here in florida.


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