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Sail-World.com : US Body issues damning verdict on E15
US Body issues damning verdict on E15
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'Ethanol damage - photo by BoatUS'
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This week the U.S. Department of Energy’s Office of Energy Efficiency & Renewable Energy released the results of two studies on the effects of using fuel that is 15 percent ethanol in volume (E15) in marine engines.
The studies were conducted on engines provided by two marine engine manufactures; Both are members of National Marine Manufacturers Association (NMMA).
The long-awaited reports show significant problems with outboard, stern drive and inboard engines. Results of the reports show severe damage to engine components and an increase in exhaust emissions, reinforcing the recreational boating industry’s concern that E15 is not a suitable fuel for marine engines.
Emissions and durability testing compared E15 fuel and fuel containing zero percent ethanol (E0) and examined exhaust emissions, exhaust gas temperature, torque, power, barometric pressure, air temperature, and fuel flow.
Specifically, the report showed degraded emissions performance outside of engine certification limits as well as increased fuel consumption. In separate testing on engine durability, each tested engine showed deterioration, including two of the three outboard engines, with damages severe enough to prevent them from completing the test cycle. The E0 test engines did not exhibit any fuel related issues.
NMMA worked with its manufacturer members in securing the resources and facilitating the testing for these reports. NMMA supports further testing that will provide additional understanding about the negative effects of E15 on marine engines.
NMMA President Thom Dammrich says, 'Current proposals by the ethanol industry to increase the amount of ethanol in gasoline should seriously concern all boaters and owners of other small engine equipment.
Although NMMA strongly supports renewable fuels as a means to reduce America’s dependence on foreign sources of oil and improve the environment, there is growing evidence that ethanol is not the answer to America’s energy challenge.'
For more information, please read the full versions of the Emissions and Durability test or the Fuel Endurance test from the Department of Energy. For questions please contact Lauren Dunn at +1 202-280-6928 or ldunn@nmma.org.
Both Volvo Penta and Mercury Marine provided test engines as well as the testing facilities. The U.S. Department of Energy approved the final analysis of the results.
About NMMA:
National Marine Manufacturers Association (NMMA) is the leading association representing the recreational boating industry in North America. NMMA member companies produce more than 80 percent of the boats, engines, trailers, accessories and gear used by boaters and anglers throughout the U.S. and Canada. The association is dedicated to industry growth through programs in public policy advocacy, market statistics and research, product quality assurance and promotion of the boating lifestyle. For more information visit www.nmma.org.
by Lauren Dunn
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4:29 AM Thu 27 Oct 2011 GMT
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