Synthetic Blend Diesel Engine Oil 15W-40, Semi-Synthetic Heavy-Duty Motor Oil, API CK-4/SN, High Mileage Protection, Oxidation Stability, Wear Control, Extended Drain Performance, 42 x 5 Gallon

ADVANCED ENGINE PROTECTION: Formulated with a synthetic blend base to help minimize wear and reduce friction on critical engine parts. Delivers enhanced performance in high-load and high-temperature conditions for both modern and older diesel enginesCLEAN ENGINE FORMULA: Designed with a premium additive system that helps control sludge, soot, and deposits. Promotes improved engine cleanliness and durability across extended oil change intervalsEXTENDED DRAIN PERFORMANCE: Helps maintain high viscosity and optimum oil pressure while offering oxidation resistance and shear stability for longer oil life in demanding driving conditionsHIGH MILEAGE SUPPORT: Engineered to deliver consistent protection for engines with higher mileage. Helps reduce oil breakdown, maintain performance over time, and support longer engine life with regular useVERSATILE FUEL COMPATIBILITY: Meets the latest API CK-4 and SN industry standards for both diesel and gasoline engines. Ideal for mixed fuel fleets and individual users. Proudly made in the USA