Quote:
Originally Posted by cbrrmike
i cant believe an engine builder recommended octane booster....there's no way to actually know what octane your creating unless you buy 55 gallon drums and mix your own fuel
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Mike, I was thinking the EXACT same thing. Sounds shady to me. Most of them contain MMT which will leave a reddish-brown residue on your plugs and can damage your engine if you screw up the concentration.