Engine Manufacturers Association
released B20 standards at the end of May. The standards are not a national fuel standard, but the EMA wanted its members (and customers) to be able to test how the various engines perform using the same type of B20. As the EMA put it: "
manufacturers have limited data regarding the use of
with current engine technologies. Therefore, for the sole purpose of evaluating the performance of biodiesel fuels in compression ignition engines, EMA and its members have established specifications for the development of biodiesel blends, of up to 20% by volume (B20), which are made with biodiesel meeting either ASTM D6751 or EN 14214, and which also meet the requirements in Table
below." That Table 1, and the rest of the details of the standard can be read in the PDF (available
[Source: Engine Manufacturers Association via DieselNet]