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

Green Car Congress

Knock and fuel octane rating are becoming increasingly important due to many powertrain design trends including downsizing, downspeeding, cylinder deactivation, and hybridization. … The concept of an “effective octane number” calculates overall knock resistance of fuel in modern engines, including the effects of charge cooling. Shelby, and William M.

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