General Information: "Biodiesel is a renewable fuel produced from vegetable oils or animal fats. Renewable feedstocks include soybeans, canola, cotton seed, mustard seed, tallow, rape seed, sunflower seed, and restaurant grease. Biodiesel is used in place of petroleum based-diesel fuel. Most diesel cars require no modifications to the fuel system to run on biodiesel.

Biodiesel begins as a vegetable based oil. The oil is chemically transformed into methyl esters (biodiesel) and glycerin (a byproduct). The chemical process is known as transesterfication. Biodiesel can be made from new oil, but the biodiesel is usually made from used oil from a local restaurant. "