Hot Shot's Secret P040432Z Diesel Extreme, 1 QT, 32. Fluid_Ounces Cleans Injector tips Boosts cetane up to 7 pts Restores throttle Top Tier lubricity enhancement Eliminates Black Smoke & improves cold starting Reduces need for DPF regeneration cycles up to 50% Cleans cylinders, fuel lines, tank & disperses moisture Increases mileage & diesel fuel lubricity Restores Throttle Response Cleans Cylinders, Fuel Lines, Tank Disperses Moisture Increases Mileage &amp; Diesel Fuel Lubricity