Biodiesel is a liquid fuel often referred to as B100 or neat biodiesel in its pure, unblended form. Like petroleum diesel, biodiesel is used to fuel compression-ignition engines. See the table for biodiesel’s physical characteristics.
America’s First Biofuels Corridor
Interstate 65, between Gary, Indiana and Mobile, Alabama was America’s first biofuels corridor. The concept, which originated with the U.S. Department of Energy, called for the increase in and upgrading of biofuels fueling infrastructure along the interstate, giving drivers the opportunity to travel the entire corridor using E85 ethanol or B20 biodiesel. With the completion of this project, drivers are never more than a tankful away from the next biofuels pump.