Product Details: Get your truck Ready for the Road Ahead™ with enhanced engine stability, with the Lucas Oil Upper Cylinder Lubricant Fuel Treatment Additive. By utilizing a specialized formula, this fuel additive neutralizes low-sulfur fuel issues by cleaning and lubricating the fuel system. Once added, this product cleanses fuel injectors and eliminates deposits to increase the life span of pumps. FleetPride is your First Click in Heavy Duty®.