Recommended for routine use, Prestone premium diesel fuel treatment helps enhance your vehicle's fuel combustion and engine performance. This treatment cleans the entire fuel system and prevents moisture and deposit formation from occurring. It also lubricates the system, reducing pump and injector wear. This fuel treatment contains special antifreeze additives to stop fuel gelling and wax formation in cold weather, along with a cetane booster to promote better starts and engine performance. It is suitable for year-round use. Treats 80 L of diesel fuel.