Use Renewable Fuels

Both E85 and biodiesel are renewable fuels that can reduce greenhouse gas emissions from your vehicle. E85 is a fuel blend containing 85% ethanol that can be used in certain vehicles called Flex Fuel Vehicles (FFVs). FFVs can be fueled with E85 or with traditional gasoline. There are approximately 6 million FFVs on the road today. To find out if you own one of them, check the inside of your car's fuel filler door for an identification sticker or consult your owner’s manual. Biodiesel is a renewable fuel made from agricultural resources such as vegetable oils. If you own a diesel vehicle, consider filling up with a biodiesel blend such as B5, a fuel blend containing 5% biodiesel, or higher. Unlike gasoline, all diesel vehicles can use biodiesel. The Department of Energy’s Alternative Fueling Station Locator can help you locate both E85 and biodiesel fuel stations in your area.
 
Learn more at the Environmental Protection Agency (EPA)