July 2012

Trends and Resources

HP Impact: E15 ethanol fuel can damage auto engines

Auto repair costs for consumers could rise due to adverse effects of fuel containing 15% ethanol blends (E15), according to new results from a two-year study on engine durability.The study was conduct..

Thinnes, Billy, Hydrocarbon Processing Staff

Auto repair costs for consumers could rise due to adverse effects of fuel containing 15% ethanol blends (E15), according to new results from a two-year study on engine durability. The study was conducted by FEV, a longtime consultant to the US Environmental Protection Agency, on behalf of the Coordinating Research Council (CRC). The CRC study showed adverse results from E15 use in certain popular, high-volume models of cars (Table 1), its authors said. Problems included damaged valves and valve seats, which can lead to loss of compression and power; diminished vehicle performance; misfires; engine damage; poor fuel economy and increased emissions. “Clearly, many vehicles on

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