8th Generation Honda Civic Forum - View Single Post - SI with 87 octane gas *Threads merged*
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Old 01-28-2008, 12:46 PM   #4 (permalink)
twistedframe
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Join Date: Jan 2006
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Dave
there is no way to tell after the fact especially if you have already been running 93 since then. As long as its not giving you any problems I would say that your car should be fine. Just keep doing what you are doing.
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