Ethanol Fuel - What is it?
Ethanol is an alcohol, made from corn or grains, which is used to oxygenate gasoline fuel at the pumps. Ethanol is also called E10, E85 or reformulated or renewable fuel and gas.
E10 contains 10% ethanol alcohol and E85 contains 85% ethanol alcohol.
By 2008, most gasoline stations have switched to alcohol ethanol-blended fuels, replacing MTBE, for oxygenating fuel.
Environmental and health concerns, including groundwater contamination
are associated with MTBE (Methyl Tertiary Butyl Ether) use.
Ethanol was believed to be safer for the environment. If the switchover to E10 and E85 fuel is successful it would help to reduce our dependence on foreign petroleum and oil production. Ethanol fuels also supports the US Farming Industry, since it's made from corn and grains.
Although the public is expected to support the benefits of ethanol renewable fuels, many are still unaware of the differences from MTBE, and the engine precautions necessary with this alcohol fuel.
The result has been widespread concern and anger, due to the sudden occurrence of engine problems/malfunctions/damage from E10 fuel blends.
In several states the gas stations are not required to disclose that gasoline contains ethanol!
http://www.fuel-testers.com/state_guide_ethanol_laws.html
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Ethanol is an Alcohol Fuel:
Ethanol is an alcohol, ethyl alcohol, the same type of ethyl alcohol found in beverages such as whiskey.
Ethanol is hygroscopic (will absorb water), and is an excellent solvent (dissolves materials).
Compared to conventional gasoline, E10/E85 (ethanol blend fuels), will absorb much more water. Due to ethanol's affinity for water, phase separation and water contamination occurs much sooner.
One drawback of E10 and E85 fuel is it generates less energy than fuels without alcohol. MPG is lower. Without a reduction in gas prices for ethanol gas blend, consumers will be paying more for gasoline.
E85 generates only about 75 percent as much power as a gallon of gasoline. That means that ethanol would have to be roughly 25-40 percent cheaper per gallon to be a bargain for consumers, which it is not true today.
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