The XTeer HD7000 CI-4 15W-40 18L-Syn is a premium synthetic diesel engine oil designed to provide superior protection and performance for heavy-duty diesel engines. It meets the CI-4 specification, offering excellent protection against wear, soot, and high-temperature deposits. With a 15W-40 viscosity, it ensures reliable operation in various temperature conditions, making it ideal for both on-road and off-road applications. This oil helps extend engine life, improve fuel efficiency, and reduce maintenance costs. The 18L packaging is perfect for large fleet operations or frequent oil changes in heavy-duty vehicles and equipment.