The Hot Shot's Secret Diesel Winter Rescue, from Lubrication Specialties, is formulated to reliquify gelled fuel and de-ice frozen fuel filters to restore the flow of diesel fuel to the engine. Diesel Winter Rescue contains a military-grade de-icer and works to disperse moisture throughout the fuel system — tank, lines, pumps, and filters — to return diesel-powered vehicles to normal operation. This product is fully formulated with a lubricity additive to prevent premature failures and is safe and effective for biodiesel blends.