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A testing based assessment to determine impacts of a 10% and 20% Ethanol Gasoline fuel blend on non-automotive engines - 2000hrs material compatibility testing

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A testing based assessment to determine impacts of a 10% and 20% Ethanol Gasoline fuel blend on non-automotive engines - 2000hrs material compatibility testing

Market barriers to the uptake of Biofuels study
Environment Australia, May 2003

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About this report

This report presents the findings of materials compatibility testing completed by the Orbital Engine Company in order to assess the impact of gasoline containing 10% and 20% by volume ethanol (E10 and E20) on a sample of two Non-automotive engine types. The program is an initiative of the Environment Australia project 'Market Barriers to the Uptake of Biofuels - Testing Petrol Containing 20% Ethanol (E20)'. This materials testing was a continuation of the broader program of performance and durability testing program undertaken on this engine category on behalf of EA and reported in January 2003 (1), where in only a preliminary review of materials compatibility was presented since the testing was still in progress.

Whilst the performance studies (1) considered the usage of both E10 and E20 fuel blends, the materials compatibility testing focused only on the compatibility with E20. Selected components, or samples cut from components, from the Mercury Marine 15hp Outboard and Stihl F45R Line Trimmer were subjected to a 2000hr immersion test following the appropriate Society of Automotive Engineers test standards.