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DOE Co-Optima report identifies top ten bio-blendstocks for efficiency in boosted SI engines

Green Car Congress

These blendstocks are best-suited for light-duty (LD) gasoline BSI engines. The merit function determines potential improvements in engine efficiency, was used to evaluate the performance of candidate bio-blendstocks in blends up to 30%. George, Anthe, Monroe, Eric, Davis, Ryan W., Gaspar, Daniel J., West, Brian H.,

Engine 207
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Team from GM, Ford, FCA reviews how to calculate engine efficiency benefits of high octane fuels

Green Car Congress

Alcohol and gasoline-alcohol blends also offer efficiency benefits independent of their octane value. Most regular-grade gasoline in the US is sold with a minimum octane rating of 87 AKI, corresponding to approximately 91−92 RON. Premium-grade gasoline is listed as 91−93 AKI minimum, corresponding to 96−98 RON.

Engine 150