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Old 08-30-2009, 09:09 AM
nhdoc nhdoc is offline
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Join Date: Dec 2004
Location: Nashua, NH
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ethanol is used to "oxygenate" the gasoline. Since MTBE was removed they needed something to replace it for smog reduction and this is what they use and yes, it does have an adverse effect on the fuel economy in gasoline burners. Because it relates to smog, in some places it is mandatory and in some it is not so it is possible to find lower concentrations in more rural areas.

It is NOT added to diesel fuel.
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Last edited by nhdoc; 08-30-2009 at 09:18 AM.
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