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Now lets ask a question that I'm not sure has ever been explained. I have been using ethanol free 93 octane, even though the engine doesn't need 93 octane is that going to cause damage to the engine?
Nope. Like the man said, just your wallet. A higher octane number, even as high a110 would not hurt anything, the worst would be an incomplete combustion of the less flammable fuel vapor which would just go out the pipe. Every little molecule of aliphatic hydrocarbon needs to oxidize to get the most bang at the correct time.
Well , we done beat this hoss enough. The PETA libertards gone be comin' around soon. Class dismissed. 
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