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

Green Car Congress

Current Legal Requirement for Use of Anhydrous Ethanol in the United States. Since the 1973 oil crisis, a plethora of books and instruction manuals have been published in the US on the subject of how to build small stills to produce inexpensive 192-proof alcohol (hydrous ethanol) to be used to blend with gasoline in motor vehicles.