Biodiesel, the common name for fatty acid alkyl esters, is a biological-based fuel that can substitute petroleum fuels in diesel engines.
It can be made from virgin vegetable oil, animal fats, algae, or from recycled oils like those used by restaurants for deep-frying. Biodiesel burns cleaner than fossil fuel diesel and has less carbon monoxide, aromatic hydrocarbons, and particulate matter (soot). It does, however, release more nitrous oxide than regular diesel, a factor...]]>