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Team from GM, Ford, FCA reviews how to calculate engine efficiency benefits of high octane fuels

Green Car Congress

The preflame reactions are a strong function of temperature, so evaporative cooling from the fuel can also play a significant role, which is particularly important for fuels containing alcohol. Alcohol and gasoline-alcohol blends also offer efficiency benefits independent of their octane value. —Leone et al.

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

Green Car Congress

Under the Proalcool Program, sugar companies were ordered to increase production and the state-run oil company, Petrobras, was required to make álcool (ethanol) available at its fuel stations. d) further provides for alcohol blends as follows: Special provisions for alcohol blends. (1) of water. 40 CFR § 80.27(d)