Renewable fuels, or “biofuels” like ethanol and biodiesel, are liquid transportation fuels made from agricultural crops like corn and soybeans. Ethanol is a clean-burning gasoline-type fuel made by fermenting grain or sugar cane into alcohol. Biodiesel is created from oil seeds (like soybeans) and waste materials like restaurant grease(how to make biodiesel? Contact us!). Both ethanol and biodiesel can be used in everyday cars and trucks in low-level blends or in slightly modified vehicles as substitutes for gasoline and diesel.