Quote:
Originally posted by Steve79SC
I've heard it said that 89 octane is the least used fuel at the pumps and thus sits there longer. I'd go with 87.
I run 91 since my rebuilt engine is using euro p&c's.
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Just FYI...gasoline only comes in two octanes to the station: 87 and 93. 89 octane is just a mixture of the two drawing from the 87 and 93 octane tanks in the correct proportions.