Top 10 Best 15w40 Diesel Oil Synthetic

of November 2024
1
Best ChoiceBest Choice
Shell Rotella T6 Full Synthetic 15W-40 Diesel Engine Oil (1-Gallon, Case of 3)
Shell Rotella
Shell Rotella
10
Exceptional
View on Amazon
2
Best ValueBest Value
Shell Rotella T5 Synthetic Blend 15W-40 Diesel Engine Oil (1 Gallon, Single
Shell Rotella
Shell Rotella
9.9
Exceptional
View on Amazon
3
Hot Shot's Secret Green Diamond 100 Percent Synthetic 15W40 Oil Diesel 1 Gallon
Hot Shot's Secret
Hot Shot's Secret
9.8
Exceptional
View on Amazon
4
Royal Purple 05154 API-Licensed SAE 15W-40 High Performance Synthetic Motor Oil
Royal Purple
Royal Purple
9.7
Exceptional
View on Amazon
5
Valvoline Premium Blue SAE 15W-40 Diesel Engine Oil 1 GA, Case of 3
Valvoline
Valvoline
9.6
Exceptional
View on Amazon
6
Triax Fleet Supreme ESP 15W-40 API CK-4 Full Synthetic Diesel Engine Oil,
Triax
Triax
9.5
Excellent
View on Amazon
7
Schaeffer Manufacturing Co. 0700CK4-012 SynShield Durability Advantage 15W-40
Schaeffer Manufacturing Co.
Schaeffer Manufacturing Co.
9.4
Excellent
View on Amazon
8
Rotella 550019918 T Triple Protection 15W-40 Heavy Duty Engine Oil - 1 55
Shell Rotella T
Shell Rotella T
9.3
Excellent
View on Amazon
9
Schaeffer Manufacturing Co. 0700CK4-006S SynShield Durability Advantage 15W-40
Schaeffer Manufacturing Co.
Schaeffer Manufacturing Co.
9.2
Excellent
View on Amazon
10
Factory Racing Oil SAE 15W-40 Synthetic Blend Diesel Engine Oil - API CK-4-5
Factory Racing Parts
Factory Racing Parts
9.1
Excellent
View on Amazon

About 15w40 Diesel Oil Synthetic

Click here to learn more about these products.

Shell Rotella T6 Full Synthetic 15W-40 Diesel Engine Oil (1-Gallon, Case of 3)

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.

Shell Rotella T5 Synthetic Blend 15W-40 Diesel Engine Oil (1 Gallon, Single Pack)

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.

Hot Shot's Secret Green Diamond 100 Percent Synthetic 15W40 Oil Diesel 1 Gallon

Hot Shot's Secret Green Diamond uses a unique blend of Group III base oils to improve your engine's fuel economy by up to 3 percent specialized blend gives Green Diamond formula excellent viscosity and reduces friction. By improving fuel economy and reducing wear, Green Diamond Fleet Oil lowers your engine's overall fuel consumption by up to 78 percent compared to CJ-4 spec oils. Compared to CJ-4 spec oils, Green Diamond Fleet Oil reduces wear and tear on your engine's components by 71 percent synthetic oil product keeps your engine free from scarring so it can run like new. Green Diamond Fleet Oil uses patented FR3 nanotechnology lubrication with CK4 Additive packaging to keep your oil clean and increase your horsepower 15W-40 engine oil excels in vehicles subjected to demanding operating conditions. Patented FR3 nanotechnology gets into the fine crevices of your engine to create smooth, slick surfaces that minimize metal-on-metal contact for the longest possible service life.

Royal Purple 05154 API-Licensed SAE 15W-40 High Performance Synthetic Motor Oil - 5 Gallon

Better wear protection. Increased fuel efficiency. Better protection of the expensive catalytic emission system. Improved compatibility with fuels containing ethanol.

Valvoline Premium Blue SAE 15W-40 Diesel Engine Oil 1 GA, Case of 3

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.

Triax Fleet Supreme ESP 15W-40 API CK-4 Full Synthetic Diesel Engine Oil, Friction Optimized and Boosted with Molybdenum and Nano-Boron, Superb Powerstroke Performance (5 Gallon Pail)

CRP organic, metallic, Moly plating technology for unsurpassed wear protection, oxidation, and high temp stability. Friction modified and VI stabilizer pre-boosted un-rivaled turbo-charger protection will not create deposits and ash on turbo bearings will not fry on the turbo. Contains state-of-the-art dispersal and ash control systems to keep your engine extremely clean. Extreme drain intervals capabilities 25,000-mile drain interval for pickups and 80,000 for class 8 semi-trucks. Eliminates the need to clean diesel particulate filters and is for use in virtually all diesel-powered pickups and heavy-duty trucks, both pre 2007 and post 2007 models fitted with emission control systems.

Schaeffer Manufacturing Co. 0700CK4-012 SynShield Durability Advantage 15W-40 Diesel Engine Oil, 12-Quart Bottle (Pack of 12)

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.

Rotella 550019918 T Triple Protection 15W-40 Heavy Duty Engine Oil - 1 55 Gallon Drum

Rotella T Triple Protection is exclusive low-ash formulation helps protect the exhaust catalysts and particulate filters found on the latest low-emission vehicles. Suitable for virtually all modern low-emission heavy duty engines. The Energized Protection of Shell Rotella heavy duty diesel engine oils provides protection in three critical areas Acid control, deposit control and wear control. It meets or exceeds API CJ-4 requirements, and is designed to provide extra performance. Rotella T Triple Protection performs well in both older and new engines. The performance benefits of the unique combination of dispersants and detergents, boosted by the use of the dual function additive component, are seen in enhanced engine cleanliness and viscosity control compared to previous generation oils.

Schaeffer Manufacturing Co. 0700CK4-006S SynShield Durability Advantage 15W-40 Diesel Engine Oil, 1-Gallon Bottle

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.

Factory Racing Oil SAE 15W-40 Synthetic Blend Diesel Engine Oil - API CK-4-5 Gallon (2x2.5 Gal)

FULLY CERTIFIED AND MEETS OEM SPECIFICATIONS - Factory Racing Parts was born from expertise and credibility. We put in the work to make sure you are getting the right viscosity and certifications to meet warranty for your engine.. SPECIFICATONS SAE 15W-40, API CK-4CJ-4CI-4, produced in an ISO9001-2015 quality certified facility. Look it up if youre bored.. EASY HANDLING - Individual 2.5-gallon bottles allow for easy handling and pouring. Great alternative to the 5 gallon pails..
Disclaimer