Shell Rotella T4 15W40 CK-4 Diesel Engine Oil is formulated to provide reliable lubrication and protection for heavy-duty diesel engines operating under demanding conditions. Its SAE 15W40 viscosity helps protect against engine wear, deposits, oxidation, and oil breakdown while supporting dependable engine performance. The API CK-4 service category is designed for modern heavy-duty diesel engine applications. Supplied as a case of 6 one-gallon containers, it is well suited for trucks, commercial vehicles, fleets, equipment, and professional maintenance operations.
