Biodiesel is a domestically produced, renewable fuel that can be manufactured from new and used vegetable oils, animal fats, and recycled restaurant grease. Biodiesel’s physical properties are similar to those of petroleum diesel, but it is a cleaner alternative. Using biodiesel in place of petroleum diesel significantly reduces greenhouse gas emissions and toxic air pollutants. Learn more in the videos below, or visit biodiesel on the Alternative Fuels and Advanced Vehicles Data Center.