Top 10 Best 15w40

Conventional 15W-40 diesel engine oil with Triple Protection technology protects against wear, deposits, and oil breakdown. Formulated with advanced additive technology for enhanced deposit control and superior engine cleanliness throughout the oil drain interval. Enhanced protection against oil oxidation for more efficient operation. Increased shear stability for better viscosity control and optimal engine oil pressure. Wear control helps keep moving metal engine surfaces apart for a longer life. Meets or exceeds API CK-4 requirements and is designed to provide extra performance in both older and new engines. Single 1-gallon bottle with ergonomic design for easy handling and pouring. Exceptional wear protection for longer life in a wide range of heavy-duty engine applications from diesel pickup trucks to tractors to tractor trailers.

Full synthetic 15W-40 diesel engine oil with Triple Protection Plus technology protects against wear, deposits, oil breakdown, and improves low-temperature flow. Exceptional wear protection for longer life in a wide range of heavy-duty engine applications from pickup trucks to tractors to semi rigs. Enhanced fuel economy capability of 1.5 percent without compromising engine protection or durability compared to 15W-40 oils. Multi-functional dispersant additives provide an enhanced level of protection against the effects of soot, dirt, and other contaminants compared to previous formulation. Increased shear stability for better viscosity control and optimal engine oil pressure. Better cold-cranking properties and low-temperature pumpability for reaching critical engine parts faster. Case of three 1-gallon bottles with ergonomic design for easy handling and pouring. Advanced low ash formulation helps protect the exhaust catalysts and particulate filters found on the latest low-emission vehicles.

Synthetic blend 15W-40 diesel engine oil with Triple Protection Plus technology protects against wear, deposits, and oil breakdown. Ideal for on-highway fleets, construction, and agricultural machinery, and diesel pickup trucks including high-power vehicles that require resistance to heat and stress. Improves low-temperature flow compared to conventional 15W-40 oils. Helps control engine deposits for reliability at extended oil drain intervals always follow the OEM recommended oil drain interval. Controls engine wear 37 percent better than the maximum wear requirements in API CK-4 engine wear tests. Improved oxidation performance for increased resistance to oil breakdown under high temperatures compared to the previous formulation. Single 1-gallon bottle with ergonomic design for easy handling and pouring.

Size 1 Gallon. Type 15w - 40. For usediesel engines requiring 15w-40 engine oil referbottle for specifications. Extends engine life with its unique additive system.

Valvoline Premium Blue Engine oil is The Only One exclusively endorsed and recommended by Cummins. Strong shear stability provides stay-in-grade performance. Outstanding wear protection. Superior deposit protection compared to industry requirements.

Cummins 3265336 Onan SAE 15W-40 Oil - 1 Quart Quantity 3.

Factory Tested Maximum Protection Engine Oil. Formulated To Reduce Consumption And Engine Wear Due To High Temperature Due To Oil Oxidation And Viscosity Increase. Viscosity Grade SAE 15W-40.. Type Synthetic. Unit Size 32 Ounce. Pack of 2.

Better wear protection. Increased fuel efficiency. Better protection of the expensive catalytic emission system. Improved compatibility with fuels containing ethanol. Superior corrosion protection. Fit type Universal Fit.

32 oz. factory tested oil. Reduces consumption and engine wear. Provides maximum protection for engines. Fit type Universal.

Excellent wear protection during severe operating conditions. Oil durability strong oxidation and viscosity control with less oil consumption. Better contamination control with superior soot-busting, deposit-dispersing capability. Strong stay-in-grade performance throughout the life of the oil. Friction modified with micron moly and penetrate.