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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. … Alcohol and gasoline-alcohol blends also offer efficiency benefits independent of their octane value. —Leone et al. —Leone et al.

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How Carmakers Are Responding to the Plug-In Hybrid Opportunity

Tony Karrer Delicious EVdriven

Plans "large demonstration fleet" late 2009. Company says its focusing on gasoline and hydrogen. Saab GM-owned company exploring PHEVs Joint Venture with Volvo and others to research PHEVs Toyota 500 PHEV 2010-model Priuses with lithium batteries to be leased for fleet tests in 2009 (150 in U.S.) Plans Saturn Vue PHEV-10.

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