Custom Formulated Fuel Additives make up close to 90% of our business. We know how important it is to ensure you that the Premium Fuel Additives and Biodiesel additives that we produce are exactly what you need and want. Create your own fuel additive. We specialize in Premium Diesel Additives, Winterization Additives, Quality Protection Additives, B100-Biodiesel Fuel, and Biodiesel Fuel Additives (Soy Methyl-Ester).