Thread: gas
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Old 05-08-2012, 08:43 AM
dkerr24 dkerr24 is offline
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The only thing you may feel by burning 91 octane is your wallet being a tad bit lighter. I run 89 octane (10% ethanol) in my truck, and every once in a while a tank of 87 octane (100% gasoline). I can't tell any difference at all in performance, but my truck is completely stock.

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