Outfit your truck to be Ready for the Road Ahead™ with enhanced engine stability, with the Lucas Oil Upper Cylinder Lubricant Fuel Treatment Additive. With a specialized formula, this fuel additive easily neutralizes low sulfur fuel issues, while cleaning fuel injectors and eliminating deposits. Once run through the system, trucks can regain lost power while increasing the life expectancy of their pumps and injectors. FleetPride is your First Click in Heavy Duty®.