Join Date: Oct 2004
Location: Narragansett Bay
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Unless a combustion engine is designed to run on pure Ethanol (100%) it should not be used as a gas substitute fuel. Brazil I believe, is the only country that legally dispenses 100% Ethanol - because it's vehicles have been designed to accept it.
In the US, a blend of 10% is standard with up to 20% Ethanol being the maximum legally allowed by the government. I would suspect military bases do not have the pure stuff, therefore using it in an outboard should not pose any problems.
The big problem with older boats with fiberglass fuel tanks however, is the break down of resins upon exposure to Ethanol. This gummy substance enters the internal cavities of an engine, and creates all sorts of problems with valves, injectors and cylinders.
EDIT: Cam posted his reply before I could see it.
True Blue . . .
sold the Nauticat
Last edited by TrueBlue; 07-19-2007 at 12:50 PM.