Prevents Gelling - Minimizes the size of wax crystals that form in diesel fuel during cold weather, so it can still travel through the fuel system, even at temperatures 20°F below the wax solidification point. Improves Cold Starts - Makes it easier for your engine to start even in subzero temperatures, by acting as a cetane booster and fuel system protector. Increases Diesel Lubricity - Works as a fuel stabilizer and fuel injector cleaner to ensure that your fuel system is protected, lubricated, and operating at its best. Improves Fuel Economy – Boosts cetane up to 7 points to improve fuel combustion and reduce DPF Regeneration cycles, keeping your vehicle operating at peak performance. Disperses Moisture – Keeps rust and corrosion from harming your fuel system, while also preventing ice and fuel line freeze-ups even in temperatures as low as -40°F.