Opti-Lube XPD All-Season Diesel Fuel Additive is engineered to maximize the performance and longevity of your diesel engine. This premium formula's primary purpose is to increase the lubricity properties of ultra low sulfur diesel (ULSD), providing exceptional protection against fuel system wear. XPD simultaneously delivers multiple benefits: it boosts cetane by up to 3 points for improved combustion, cleans and maintains injectors, enhances fuel economy, and increases power output while reducing deposits and emissions. The additive contains preventative anti-gel components that interact with wax molecules to prevent them from forming large, filter-plugging crystals, keeping your fuel flowing smoothly down to -10 degrees F. This 16oz dosing bottle offers convenient treatment for everyday use. XPD also prevents rust and corrosion, improves water separation, and more than doubles the storage life of diesel fuel for enhanced stability. Compatible with all vehicle emissions systems, this formulation contains no harmful alcohols. Note: For preventative anti-gel effectiveness, diesel fuel cannot be at or below the cloud point when the additive is applied. Trust Opti-Lube XPD to protect your equipment and optimize diesel performance in all seasons.