Single stage: It has excellent high-temperature oxidation resistance, clean dispersibility, and the ability to prevent bearing corrosion. The product is not only energy-saving and environmentally friendly, but also can effectively improve the lubrication efficiency and service life of diesel engines, making the power performance of diesel engines more superior and powerful. Existing varieties: CD40/4L、CD40/16L、18L; CD50/4L、CD50/16L、18L; Small trailer specific oil/3.5L. Suitable for: Dongfanghong LR, YT series and other similar manufacturers' single cylinder to six cylinder (15-120 horsepower) diesel engines.