The XTeer HD7000 CH-4 20W-50 6L-Syn is a premium synthetic diesel engine oil formulated for heavy-duty engines. It meets the CH-4 specification, providing exceptional protection against wear, oxidation, and high-temperature deposits. With a 20W-50 viscosity, it offers reliable performance in both hot and cold conditions, making it ideal for heavy-duty vehicles and machinery operating in demanding environments. This oil helps extend engine life, enhance fuel efficiency, and reduce maintenance needs. The 6L packaging is perfect for larger oil changes in heavy-duty equipment and fleets.