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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.

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How Carmakers Are Responding to the Plug-In Hybrid Opportunity

Tony Karrer Delicious EVdriven

Audi Volkswagen-owned company exploring PHEVs Metroproject Quattro Sub-compact PHEV Concept Car shown October 2007; PHEV of A1 Sportback under consideration Bright Automotive For-profit spin off from Rocky Mountain Institute designing lightweight PHEVs, successor to RMIs 1990s "Hypercar" concept. Has shown some concept fuel-cell PHEVs.

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