Improve the performance and durability of your diesel engine with MANNOL 9930 Diesel Ester Fuel Additive. This high-performance anti-wear additive is specially designed for all types of diesel fuel, particularly low-sulfur diesel, to enhance lubrication and protect critical fuel system components. The advanced ester-based formula forms a strong, stable lubricating film on fuel system parts such as high-pressure fuel pumps, injectors, and pump-injectors. This significantly reduces friction and wear, helping extend the service life of expensive engine components. It also improves lubrication in the combustion chamber, protecting piston rings, cylinder walls, and valve seats. Regular use ensures smoother engine operation, improved efficiency, and reduced wear over time. The additive burns completely with the fuel, leaving no harmful carbon deposits. Application: Add 50 ml per 50 liters of diesel fuel Suitable for regular/continuous use for best results