Top 10 15W40 Synthetic Diesel Oil – Motor Oils

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1. Shell Rotella T

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

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Shell Rotella T #ad - Engineered with shear stability to resist viscosity loss and maintain optimal engine oil pressure. For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual. Formulated with additive technology that protects against the effects of soot, dirt and other contaminants. Triple protection plus formula combines fully synthetic base oils with advanced additives for excellent equipment protection and long engine life. 5% improved fuel economy performance compared to SAE 15W-40 oils. Provides 1.
BrandShell Rotella T #ad
ManufacturerRotella #ad
Part Number550050467-3PK
Model550050467-3PK
WarrantyLimited

2. Shell Rotella T

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Shell Rotella T5 Synthetic Blend 15W-40 Diesel Engine Oil 1-Gallon, Case of 3

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Shell Rotella T #ad - Delivers improved oxidation performance for increased resistance to breakdown under high temperatures compared to the previous formulation. Formulated to control engine wear, 37% better than the maximum wear requirements in API CK-4 engine wear tests. Helps control engine deposits for reliability at extended oil drain intervals. Heavy duty engine oil formulated with synthetic base oil components. Triple protection plus technology protects against wear, deposits and oil breakdown plus provides better low temperature flow compared to SAE 15W-40 oils.
BrandShell Rotella T #ad
ManufacturerRotella #ad
Weight24 Pounds
Part Number550045348-3PK
Model550045348-3PK

3. Royal Purple

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Royal Purple 04154 15W40 Oil, 1 Gallon 128 Ounces

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Royal Purple #ad - Top quality synthetic base oils provide excellent cold flow and protection at all operating temperatures. Greatly extends oil drain intervals. Robust detergents remove deposits and maintain engine cleanliness. Recommeded for engines specifying apI service CI-4, CJ-4, CI-4 Plus, and CK-4. Fit type: Universal Fit. Superior corrosion protection.
BrandRoyal Purple #ad
ManufacturerRoyal Purple #ad
Height8.5 Inches
Length8.25 Inches
Width5 Inches
Part Number04154
ModelROY04154

4. Delo

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Delo 257004470 400 XLE SAE Synblend Synthetic Blend Oil 15W40

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Delo #ad - For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual. Isoclean: certified clean - ensure your lubricants meet OEM cleanliness requirements to help you minimize downtime, reduce maintenance costs and extend equipment life.

A premium synthetic blend, long drain  mixed-fleet engine oil specifically formulated for on- highway applications, including 2017 greenhouse gas GHG 17 compliant diesel engines. Its high performing detergent and dispersant additives provide excellent diesel engine component protection. Exceptional soot dispersancy and wear control - Cylinders, providing optimum service life and minimal maintenance, pistons, and valve train components are well protected against wear and corrosion, rings, contributing to maximum equipment utilization and minimal downtime.

Provides high performance piston deposit control and turbocharger protection due to its superb oxidation performance. Isosyn advanced technology: the next generation of Heavy Duty Engine Oil Chemistry - engineered to deliver longer oil life, better wear protection and longer engine life.
BrandDelo #ad
ManufacturerChevron #ad
Height12.1 Inches
Length7.8 Inches
Width4.33 Inches
Part Number257004470
Model257004470
WarrantySee manufacturer's warranty

5. Shell Rotella T

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Case of 3, Shell Rotella T6 Full Synthetic 5W-40 Diesel Engine Oil 1-Gallon

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Shell Rotella T #ad - 5% improved fuel economy performance compared to SAE 15W-40 oils. Engineered with shear stability to resist viscosity loss and maintain optimal engine oil pressure. Formulated with additive technology that protects against the effects of soot, dirt and other contaminants. Triple protection plus formula combines fully synthetic base oils with advanced additives for excellent equipment protection and long engine life. Provides 1. Suitable for diesel-powered vehicles from tractor/trailers to classic cars and heavy-duty diesel pickups that allow an SAE 5W-40 .
BrandShell Rotella T #ad
ManufacturerRotella #ad
Part Number550045347-3PK
Model550045347-3PK
Warranty1 year limited

6. Royal Purple

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1 gal. Case of 3, Royal Purple 04154 / 300905 Duralec Super 15W40 CK-4 Motor Oil Synthetic

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Royal Purple #ad - Increased fuel efficiency. Better protection of the expensive catalytic emission system. Better wear protection. For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual. Royal purple 44154 api-licensed sae 15w-40 high performance Synthetic Motor Oil - 1 Gallon Jug, Pack of 3, Superior corrosion protection. Improved compatibility with fuels containing ethanol.
BrandRoyal Purple #ad
ManufacturerROYAL PURPLE #ad
Height8 Inches
Length15 Inches
Weight24 Pounds
Width9 Inches
Part Number44154
Model44154

7. Shell Rotella T

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

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Shell Rotella T #ad - Synthetic base oil components provides the capability to improve cold starting and low temperature performance reduce fuel consumption. Rotella t5 meets the requirements of the major US engine manufacturers for low emission applications. Advanced low-ash formulation helps control the blocking or poisoning of exhaust after treatment devices, helping maintain vehicle emission compliance and engine fuel efficiency. The advanced formulation delivers good engine cleanliness and protection against piston deposits ensuring engine and component reliability at extended oil drain intervals.
BrandShell Rotella T #ad
ManufacturerRotella #ad
Height12.6 Inches
Length7.7 Inches
Width3.6 Inches
Part Number550045348
Model550045348
WarrantyPlease contact retailer/seller for assistance

8. Shell Rotella T

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Shell Rotella T4 Triple Protection Conventional 15W-40 Diesel Engine Oil 2.5 Gallon, Single Pack

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Shell Rotella T #ad - Enhanced shear stability performance for viscosity control and optimal oil pressure in your engine. Formulated for enhanced deposit protection to help keep engines cleaner over the oil drain interval.

Provides outstanding protection for virtually all heavy duty diesel engines, including the latest emission controlled engines using EGR and containing a Diesel Particulate Filter. Exclusive low ash formulation helps protect the exhaust catalysts and particulate filters found on the latest low emission vehicles. Meets or exceeds api cj-4 requirements, and is designed to provide extra performance Shell Rotella T4 performs well in both older and new engines.
BrandShell Rotella T #ad
ManufacturerRotella #ad
Height15.25 Inches
Length14.5 Inches
Width9.25 Inches
Part Number550045127
Model550045127

9. Lucas Oil

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1 Gallon, Lucas Oil 10299 SAE 15W-40 CJ-4 Synthetic Motor Oil

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Lucas Oil #ad - Fit type: Vehicle Specific. Package dimensions: 8. 38 l x 12 h x 3. 5 w inches. Package weight : 7. 8 pounds. Country of Origin : United States.
BrandLucas Oil #ad
ManufacturerLucas Oil #ad
Height12 Inches
Length8.37 Inches
Weight6 Pounds
Width3.5 Inches
Part Number10299
Model10299
WarrantyLimited Manufacturer

10. Valvoline

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Valvoline Premium Blue Extreme SAE 5W-40 Full Synthetic Engine Oil 1 GA, Case of 3

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Valvoline #ad - Superior synthetic base stocks provide faster, safe starts during freezing weather and enhanced thermal properties for hot weather operations. Outstanding oxidation resistance supports long oil life in heavy duty engines. Superior wear protection for hardworking heavy-duty trucks and equipment. The only one“ endorsed and recommended by Cummins.
BrandValvoline #ad
ManufacturerValvoline #ad
Height11.44 Inches
Length14.5 Inches
Width9.13 Inches
Part Number000000000000774038
Model774038