Facts About Ethanol
* Ethanol for fuel is highly refined grain alcohol, approximately 200 proof, that can be produced from corn, sugar cane and wheat. New technology will allow ethanol to be made from "cellulosic" feedstocks including corn stalks, grain straw, paper, pulp, wood chips, municipal waste, switchgrass and other sources.
* Ethanol is hygroscopic and will more readily mix with water than with gasoline. It has different solvency behaviors than gasoline, which allows it to loosen rust and debris that might lay undisturbed in fuel systems.
* Fiberglass tanks manufactured prior to 1991 may not be compatible with gasoline containing ethanol. It has been reported that, in the presence of ethanol, some resins may be drawn out of fiberglass and carried into the engine where severe damage could occur. If an older fiberglass tank is used, check with the manufacturer to determine if gasoline with ethanol can be safely used.
Source: Mercury Marine
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