Re: Non ethanol gas
agreed as to previous post.
but to put it another way...
octane is added to gasoline to suppress knocking (detonation) in both ethanol and non-ethanol gasoline, AFAIK. however, the amount of octane added to base non-ethanol gasolines is greater than that added to base ethanol gasolines. most likely because ethanol alone has a pretty high octane rating.
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