The XTeer HD7000 CH-4 20W-50 18L-Syn is a high-performance synthetic diesel engine oil designed for heavy-duty engines. It meets the CH-4 specification, providing outstanding protection against wear, oxidation, and high-temperature deposits. With a 20W-50 viscosity, it ensures reliable performance in both hot and cold conditions, making it ideal for heavy-duty trucks, machinery, and off-road vehicles operating in tough environments. This oil helps extend engine life, improve fuel efficiency, and reduce maintenance costs. The 18L packaging is ideal for large-scale operations, offering excellent value for fleet maintenance and frequent oil changes.