Alternative fuels are exactly what the name suggests. They can be called as non-conventional fuels. They are basically any substance that can be used for the same purpose as that of the conventional fuels. Biodiesel is also one kind of alternative fuel. This is actually a vegetable oil or some animal fat based diesel fuel. They are made by conducting a chemical reaction of lipids with an alcohol. This type of fuel also has a technical name as given by the National Biodiesel Board of = Read More =