Quote:
Originally Posted by X-TECH MAN
Yes ! It has alcohol in it.
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And, most of it is crap anymore. My 454" Suburban has started to get a little spark knock on 87 octane pulling the trailer this past year. Either go to 89 octane, or de-tune it some. I dyno tuned it on 87 octane in 2009. Been fine until this last summer. Had some customers with premium fuel vehicles (Corvettes, etc) starting to hear their's ping some on 91. Hard to find 93 octane around here anymore.
If you have a Pure Stocker, NHRA rules should be no issue anyway. :-)