I check every year to make certain that my local fuel suppliers haven't changed their formulas.
Once again, for 2011 Cenex (the supplier to the station nearest my lake property) will be using 10% ethanol in their regular gasoline, and zero percent ethanol in their premium gasoline. Their midgrade is a 50/50 mix of regular and premium so it ends up with 5% ethanol content.
If you want to avoid ethanol in your marine engines, simply buy their premium grade for (on average) twenty cents more. If gasoline hits $4/gallon, that's only 5% extra to keep ethanol out of your marine engine and fuel system.
Ethanol content in gasoline is affected by a myriad of factors including federal regulations, state regulations, local regulations, seasonal changes, and the preferences of the gasoline vendor. Call the supplier to your station of preference and ask them - they're happy to answer questions.
Once again, for 2011 Cenex (the supplier to the station nearest my lake property) will be using 10% ethanol in their regular gasoline, and zero percent ethanol in their premium gasoline. Their midgrade is a 50/50 mix of regular and premium so it ends up with 5% ethanol content.
If you want to avoid ethanol in your marine engines, simply buy their premium grade for (on average) twenty cents more. If gasoline hits $4/gallon, that's only 5% extra to keep ethanol out of your marine engine and fuel system.
Ethanol content in gasoline is affected by a myriad of factors including federal regulations, state regulations, local regulations, seasonal changes, and the preferences of the gasoline vendor. Call the supplier to your station of preference and ask them - they're happy to answer questions.
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