what is biodiesel?

WHAT IS BIODIESEL?

          Biodiesel is renewable and clean burning fuel derived from the organic oils such as waste vegetable oils, animal fats, or recycled restaurant grease for use in diesel vehicle rather than petroleum. Biodiesel can be used alone or mixed with hydrocarbon based diesel. Biodiesel fuel is commonly used in diesel vehicles. Biodiesel is not the same thing as vegetable oil. It is produced by chemical process which removes glycerine from the oil.Generally, no expensive modifications to the engines are required. This makes it easier to integrate biodiesel into current systems than other alternative energy sources, which often require new equipment.