Keeping you Ready for the Road Ahead , the Power Service Diesel Fuel Supplement Antigel +Cetane Boost is an excellent cleaning system solution for preventing fuel gelling and fuel filter plugging in the winter months. Power Service’s unique diesel fuel supplement formula includes Slickdiesel Lubricator, which works to prevent fuel pump and injector wear from low-quality ultra low sulfur diesel fuel (ULSD). As a result, this heavy duty winterization additive provides the engine stability you need to have a worry-free winter on the road. FleetPride is your First Click in Heavy Duty .