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These are in contrast to a May 2012, Center for Agricultural and Rural Development study which showed a $0.29 to $1.09 reduction in per gallon gasoline price from ethanol use. [ 82 ] The U.S. consumed 138.2 × 10 ^ 9 US gal (523 × 10 ^ 6 m 3 ) of gasoline in 2008, blended with about 9.6 × 10 ^ 9 US gal (36 × 10 ^ 6 m 3 ) of ethanol ...
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.
According to a 2008 analysis by Iowa State University, the growth in US ethanol production has caused retail gasoline prices to be US$0.29 to US$0.40 per gallon lower than would otherwise have been the case.
Brazil's sugar cane-based industry is far more efficient than the U.S. corn-based industry. Brazilian distillers are able to produce 1 liter of ethanol for $0.19–0.24 (or $0.71–0.90 per gallon), compared with the $0.41–0.46 per liter for corn-based ethanol (or $1.55–1.74 per gallon) (no reliable source referenced). [106]
After being renewed several times, the tax credit is set to expire on December 31, 2011, and both the US$0.54 per gallon tariff and US$0.45 per gallon blender's credit have been the subject of contentious debate in Washington, D.C., with ethanol interest groups and politicians staking positions on both sides of the issue.
As of 2005, E85 is frequently sold for up to 36% lower price per quantity than gasoline. [10] Much of this discount can be attributed to various government subsidies, and, at least in the United States, the elimination of state taxes that typically apply to gasoline and can amount to 47 cents, or more, per gallon of fuel.
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According to the Renewable Fuels Association, the E15 waivers now cover 62% of vehicles on the road in the US, and the ethanol group estimates if all 2001 and newer cars and pickups were to use E15, the theoretical blend wall for ethanol use would be approximately 17.5 billion gallons (66.2 billion liters) per year.