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

Green Car Congress

AUGUST 25, 2015

Alcohol and gasoline-alcohol blends also offer efficiency benefits independent of their octane value. The concept of an “effective octane number” calculates overall knock resistance of fuel in modern engines, including the effects of charge cooling. —Leone et al. In their study, Leone et al.

Engine 150
Engine Fuel GM Ford 150
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Perspective: US Needs to Transition to Hydrous Ethanol as the Primary Renewable Transportation Fuel

Green Car Congress

AUGUST 30, 2009

The oil price shocks of the 1970s led the Brazilian government to address the strain high prices were placing on its fragile economy. Brazil, the largest and most populous country in South America, was importing 80% of its oil and 40% of its foreign exchange was used to pay for that imported oil.

Transportation 317
Transportation Fuel Renewable Gasoline-Electric 317
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