A fuel mixture combining gasoline with ethanol (typically 10% ethanol), developed as an alternative fuel and to reduce petroleum dependence.
Portmanteau of 'gasoline' + 'alcohol,' coined in the 1970s-80s during the energy crisis when countries sought renewable fuel alternatives to pure petroleum.
Gasohol emerged as a energy-security solution in the 1970s oil crisis and represented early thinking about biofuels—today's E10 and E85 ethanol blends are direct descendants, showing how crisis-driven innovation can reshape fuel markets.
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