The Howes Diesel Lifeline is designed to re-liquify gelled fuel and de-ice frozen fuel filters during winter emergencies. Diesel Lifeline is a petroleum-based product that contains no alcohol or harmful solvents. Lifeline works to change the melting points of both ice and wax by chemically modifying the shape and size of wax particles. Lifeline can be used at 100 percent concentration in the fuel filter without harming the engine, which eliminates the need for mixing it with diesel, making it an easy and cost effective solution.