From what I have heard, Ethanol can cause corrosion with aluminum and as all of our karting engines are aluminum if that is true it does not seem wise. i know the reason we run race fuel in the first place is not only because of the octane, but also because of the consistency of the fuel. For tech purposes a fuel has to be exactly the same with no additives or it depends on what day you bought the fuel if you got a good batch or not. I know 91 octane pump gas will actually make a Rotax run faster, but it has lots of additives that make it illegal for kart racing purposes. Hopefully they will keep a tight eye on fuel this year, as they started to do last year. Any one else with comments?
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