Thread: octane??
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Old 03-18-2003, 11:01 PM   #1 (permalink)
revin=smiles
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Join Date: Oct 2002
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octane??
my question is,why is it so important to use 91 octane gas on our si's is it because you loose power and cause detination (pinging) sorry just want the tech side of it thnaks.
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