Xteer hd ultra 15w40 is made and sold by hyundai oilbank which is one of big oil companies in korea. This product is the most advanced heavy duty diesel engine oil designed for the latest premium diesel engines with considerations for the environment. It meets the toughest standards of the major european car manufacturers such as mercedes-benz and volvo. Its excellent resistance to temperature variations guarantees the longevity of engine parts and optimal performance levels under all circumstances. -features : xteer hd ultra 15w40 provides sustained emission control system durability. It provides maximum engine protection under severe workload. It provides maximum engine performance in the toughest conditions. It is recommended for 15ppm sulfur fuel or higher grade. - viscosity & performance grade : api cj-4/sl / acea e9 / mb 228.31 / volvo vds-4 / man 3275 / cummins ces 20081