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Perspective: US Needs to Transition to Hydrous Ethanol as the Primary Renewable Transportation Fuel

Green Car Congress

The 1979 Iranian crisis and related oil price shock accelerated Brazil’s conversion of its gasoline supply and automobile fleet. The growth in hydrous ethanol, which uses a blend of 94-95% ethanol to 5-6% water, rapidly increased during the 1980s, with consumption peaking in 1989. As used in this section and Sec. 40 CFR § 80.27(d)