Biodiesel is a diesel fuel replacement made from vegetable oil or animal fat. It is not the same as ethanol, which is made from sugar or starch, and which is used in engines that run on gasoline. Biodiesel is used in engines that run on diesel fuel.
The University of Idaho has been involved in biodiesel research since 1979. The Biodiesel Fuel Education Program is committed to providing unbiased, science-based information about biodiesel for biodiesel producers and distributors, fleet operators, farmers and feedstock producers, policy makers, and consumers.