New Urban Air Initiative study says most vehicles fine with up to 27% ethanol

April 8, 2019 |

In Washington, a newly published study finds that most vehicles on the road today can adapt to mid-level ethanol blends, helping cars run more efficiently while reducing greenhouse gas emissions along with other pollutants. The study was conducted by North Carolina State University and commissioned by the Urban Air Initiative.

Researchers tested regular E10 with 10% ethanol to a mid-level blend with 27% ethanol or E27. They found that when splash blending or simply adding ethanol to regular consumer fuel, ethanol lowered particulate matter (PM), CO and CO2. The vehicles were also able to adjust ignition timing and properly control air-to-fuel ratios.

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