Ensuring you are Ready for the Road Ahead , Power Service’s Diesel 9-1-1 Fuel Additive is an optimal cleaning solution in winter emergencies. This Power Service winterization additive helps to reliquefy gelled fuel within the engine system. In addition, if your vehicle will not start or gain power in cold weather, this fuel additive will de-ice frozen fuel filters. At the same time, this Power Service formula contains Slickdiesel Lubricator, which helps prevent fuel pump and injector wear from low-quality ultra low sulfur diesel fuel (ULSD). As a result, this heavy duty winterization additive is an excellent choice for getting you back on the road, minimizing downtime. FleetPride is your First Click in Heavy Duty .