Performance proven. On spec and in your engine, biodiesel regularly meets ASTM fuel performance standards. Clean Fuels ALLIANCE AMERICA Better. Cleaner. Now. cleanfuels.org Materials supported by United Soybean Board, soybean formers and their checkoff Performance proven . On spec and in your engine , biodiesel regularly meets ASTM fuel performance standards . Clean Fuels ALLIANCE AMERICA Better . Cleaner . Now . cleanfuels.org Materials supported by United Soybean Board , soybean formers and their checkoff