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Ethanol fuel has a "gasoline gallon equivalency" (GGE) value of 1.5, i.e. to replace the energy of 1 volume of gasoline, 1.5 times the volume of ethanol is needed. [4] [5] Ethanol-blended fuel is widely used in Brazil, the United States, and Europe (see also Ethanol fuel by country). [2]
In one US test, a 2007 Chevy Tahoe FFV averaged 18.3 MPG (U.S. gallons) for gasoline and 13.5 MPG for E85, 26.5% worse than gasoline. However, in Australia, where Holden has sold more than 70,000 FFVs since 2010, the difference in combined consumption on similar V8 variants in a family sedan is between 10% and 20%.
Scientific evidence reveals that water is an inhibitor for corrosion by ethanol. [6] The experiments are done with E50, which is more aggressive and speeds up the corrosion effect. It is very clear that by increasing the amount of water in fuel ethanol one can reduce corrosion. At 2% or 20,000 ppm water in the ethanol fuel the corrosion stopped.
Scientific study concludes that ethanol is likely a net environmental negative, contradicting a past USDA study that heralded the corn-based biofuel’s effect. Ethanol at the Gas Pump May Be ...
Specially equipped vehicles designated as Flex Fuel capable can run on E85, a mix that's as high as 85% ethanol and just 15% gasoline. But, nearly all cars are already using a gasoline-ethanol mix.
Sugarcane ethanol has an energy balance seven times greater than corn ethanol. [101] As of 2007, Brazilian distiller production costs were 22 cents per liter, compared with 30 cents per liter for corn-based ethanol. [102] Corn-derived ethanol costs 30% more because the corn starch must first be converted to sugar before distillation into ...
An EPA rule change rippled through Wall Street Friday, and it could make a difference when you go to fill your gas tank. Meanwhile it was another day, another record for both the Dow Industrials ...
Ethanol produces about 34% less air pollution than gasoline on average. [32] As of 2016, ethanol blends in the U.S. reduce emissions of carbon dioxide by about 40 million tons per year. During its entire life cycle, "from field to wheel," ethanol reduces emissions by about 34 percent. Second-generation cellulosic ethanol is even more efficient.