Technical statement on the use of biodiesel fuel in compression ignition engines

Feb 2003

The Engine Manufacturers Association (EMA) is an international membership organization representing the interests of manufacturers of internal combustion engines.
In 1995, EMA published a “Statement on the Use of Biodiesel Fuels for Mobile Applications.” Since that time, increased worldwide interest in reducing reliance on petroleum-based fuels and improving air quality has led many stakeholders, including engine manufacturers, to continue to investigate the use of alternative, renewable fuels, including biodiesel fuels, as a substitute for conventional diesel fuel. In addition, recent government proposals in the United States and Europe have called for incentives or mandates to increase the production and use of such renewable fuels.
This Statement, which takes into consideration additional laboratory and field research conducted since the publication of the 1995 Statement, sets forth EMA’s position on the use of biodiesel fuels with current engine technologies. It should be noted, however, that only limited data is available regarding the use of biodiesel with those technologies that have been, or are about to be, introduced to meet the (US) Environmental Protection Agency’s (EPA’s) 2004 heavy-duty on-highway emission standards. Moreover, because of the absence of available data, the Statement does not address the potential use of biodiesel fuels with advanced emission control technologies, including after treatment systems designed for future ultra-low emission engines.

By: Engine Manufacturers Association (EMA)

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