Biofuels pumps service station E85 blend of 85% bioethanol, 15% unleaded gasoline blend can be used in all FlexFuel designated vehicles. E10 blend 10% bioethanol, 90% unleaded gasoline. This blend is approved for use in all gasoline powered vehicles and reduces air emissions. B5 blend of 5% biodiesel 95% ultra low sulfur petroleum diesel blend meets the ASTM specifications for diesel fuel for all diesel engines. B20 blend of 20% biodiesel 80% utlra low sulfur petroleum diesel blend meets engine manufacturers recommendations for most diesel vehicles.