Alcohol Blend Gasoline Light 
Green Car Congress
NOVEMBER 26, 2013
Results of a study led by a team from the National Renewable Energy Laboratory on the impact of butanol-gasoline blends on light-duty vehicle emissions suggest that widespread deployment of n-butanol or i-butanol in the gasoline pool could result in changes to the estimated emissions of alcohols and carbonyls in the emissions inventory.
Green Car Congress
OCTOBER 11, 2019
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%. The blendstocks were identified using a fuel property basis using the BSI merit function.
Green Car Congress
MARCH 27, 2020
For the past four years, the Co-Optimization of Fuels & Engines (Co-Optima) National Laboratory consortium has focused research efforts primarily on turbocharged (boosted) spark-ignition (SI) engines for light-duty vehicles. Of the fuel properties investigated, these six were found to have the most impact on engine efficiency and emissions.
Green Car Congress
AUGUST 25, 2015
A higher compression ratio can be used if an engine will operate primarily at light loads, such that degraded efficiency at high loads is more than offset by improved efficiency at light loads. Alcohol and gasoline-alcohol blends also offer efficiency benefits independent of their octane value.
Green Car Congress
JULY 8, 2015
Methanol-powered vehicles are one pillar of Geely Auto’s diversified new-energy strategy, which also encompasses ethanol, CNG, gasoline-electric hybrid, plug-in hybrid, pure-electric, and extended-range solutions. Their results showed that in comparison with gasoline mode, CO emitted in methanol mode decreased 11.2%. —Wang et al.
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