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

Green Car Congress

All the top-performing blendstocks showed potential to be produced at a competitive cost. Six of these blendstocks had the fewest significant practical barriers to adoption and use: di-isobutylene; ethanol; isobutanol; n-propanol; isopropanol; and a fusel alcohol blend. George, Anthe, Monroe, Eric, Davis, Ryan W.,

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. For example, a recent study showed that a transition to higher-RON (98 RON) gasoline in the US with LDVs optimized for the fuel could yield significant net reductions in GHG emissions and a net cost savings. 5b01420.

Engine 150