Ethanol and Your Vehicle
E diesel is a blend of standard No. 2 diesel fuel containing up to 15% ethanol and a proprietary additive to maintain blend stability and certain fuel properties, which may comprise from 0.2% to 5.0% of the blend. Currently, E diesel fuels are considered experimental and can be used legally in off-road applications. Special permission must be obtained from the U.S. Environmental Protection Agency (EPA) for on-road use.
Tests have shown that E diesel blends may reduce certain components of exhaust emissions compared to regular No. 2 diesel, especially particulate matter. The ethanol in E diesel blends is also a domestic renewable resource. The use of greater volumes of ethanol reduces crude oil imports and results in lower contributions to greenhouse gases.
E diesel is made by splash blending of conventional diesel, fuel-grade ethanol, and additives. No special mixing protocol or temperature control is required.