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08-10-2006 08:01 AM #1
E85 Ethanol and Reg. Unleaded Fuel Comp.
Many wonder why all hybrids are not running on E85 Ethanol along with regular unleaded fuel. The reason you do not have the energy in E85 Ethanol that you have in regular unleaded fuel is directly related to the Btu's of energy between the two. A gallon of E85 results in 81,800 Btu's per gallon. The identical amount of regular unleaded fuel (typical) provides 114,100 Btu's. This is why we all experience less power and worse MPG running on ethanol versus reg. unleaded fuel. If you own a car with a fuel computer just watch your avg. mpg decline when you fill with E85 ethanol and watch your avg. mpg improve (all driving habits being equal) with a tankful of reg. unleaded.