Environmental Protection Agency (EPA)
has passed every Heath-Effects Test of the Clean Air Act and meets the requirements of the California Air Resources Board (CARB).
Biodiesel is made using an alcohol like methanol and a chemical process that separates glycerine and methyl esters from fats or vegetable oils. Glycerine is used in many common products including soap and is highly marketable; therefore there is little waste in the process. Biodiesel is more expensive than petroleum to produce. This must be considered against the many economic advantages, however, that arise from a domestic form of fuel, a cleaner environment, an improvement in air quality, and a reduction of cancer-causing agents.
Biodiesel has been rigorously and independently tested in virtually every type of diesel engine by a number of agencies in the laboratory and on the road. The
National Biodiesel Board (NBB)
reports the tests combine to account for over 50-million street miles plus intense off-road and marine use. Performance is said to rate comparably to petroleum in all areas from power to efficiency, hauling and climbing. It can be used in its pure form or blended with petroleum fuel. The most common mix is 20/80, referred to as "B20" containing 20% biodiesel by volume, and 80% petroleum.
This type of fuel can be used in any diesel engine with no modifications. The main effect is super-lubrication which has the benefit of acting like a solvent to clean the engine. If the engine has been previously running on conventional diesel this can result in an initial need to change fuel filters until sludge left by petroleum fuel is purged. This effect is more pronounced when using B100 (100% biodiesel), and may be less so with B20. Precautionary measures should be taken however, by checking the fuel filter after initial hours of running blended or neat fuel (100% biodiesel).
Biodiesel should not impact or void the manufacturer's warranty of any compression-ignition motor (diesel), however, it's always safest to check your warranty first Download the Original Engine Manufacturers Reccomendation for your vehicle
Agencies involved in the testing of this fuel include the US Department of Energy, the US Department of Agriculture, the Lovelace Respiratory Research Institute, and the Southwest Research Institute, among others. In the South, this fuel is not available at petrol stations, ENVIRODIESEL sells in bulk usually in varying Bxx blends. It will likely cost a few cents cheaper per litre, but the ample benefits to the environment, human health, our own economy, and the reduction of dependence on foreign oil are each powerful counterpoints.