The XTeer HD7000 CI-4 15W-40 6L-Syn is a high-performance synthetic diesel engine oil designed to deliver exceptional protection and reliability for heavy-duty diesel engines. Formulated to meet the CI-4 specification, it offers excellent control over wear, soot, and high-temperature deposits. The 15W-40 viscosity ensures consistent performance in a wide range of temperatures, making it suitable for both on-road and off-road operations. This oil helps extend engine life, improve fuel efficiency, and reduce maintenance needs. The 6L packaging is ideal for larger oil changes in heavy-duty vehicles and machinery.