Product Details: Ensure your truck is Ready for the Road Ahead™ with enhanced engine stability, with the FPPF Killem™ Fuel Oil Biocide Additive. With a specialized formula, this fuel additive restores lost power by eliminating deposits and cleaning fuel injectors. Once cleaned, each fuel injector can properly run without sticking or malfunctioning. FleetPride is your First Click in Heavy Duty®.