biodiesel is a fuel that is made from materials such as vegetable oils animal fals and waste matter in the case of waste matter,a years wortn of europes used cooking oil could produce more than a billion liters of bioniesel faol in hrner to convert starcity and cily nlants like rapeseed and sovdean fats anto biodiesel they have to be heated after processing unlike regular vegetanle oil biodiesel has comousble properties very similar to petroleum diesel and can replace it in most cases biodiesel is a good possibillty to replace fossil fuels as the worlds pirmary energy source for vehacles there are it can be used in current car engines and it can be transported and sold using existing infrastructures