Top 8 15W-40 Synthetic Gasoline – Motor Oils

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1. Royal Purple

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Royal Purple 1154 06154-6PK API-Licensed SAE 15W-40 High Performance Synthetic Motor Oil, 1 qt. Case of 6

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Royal Purple #ad - Better protection of the Expensive Catalytic Emission System. Specifically Formulated for Diesel-Powered Engines. Increased Fuel Efficiency. Better Wear Protection.
BrandRoyal Purple #ad
ManufacturerRoyal Purple #ad
Height8.75 Inches
Length4.25 Inches
Weight2 Pounds
Width1.75 Inches
Part Number06154-6PK
Model1154

2. Shell Rotella

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

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Shell Rotella #ad - Full synthetic 15w-40 diesel engine oil with Triple Protection Plus technology protects against wear, oil breakdown, deposits, and improves low-temperature flow. Multi-functional dispersant additives provide an enhanced level of protection against the effects of soot, dirt, and other contaminants compared to previous formulation.

Advanced low ash formulation helps protect the exhaust catalysts and particulate filters found on the latest low-emission vehicles. Exceptional wear protection for longer life in a wide range of heavy-duty engine applications — from pickup trucks to tractors to semi rigs. 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. Increased shear stability for better viscosity control and optimal engine oil pressure. Enhanced fuel economy capability of 1. 5 percent without compromising engine protection or durability compared to 15W-40 oils.
BrandShell Rotella #ad
ManufacturerRotella #ad
Part Number550050467
Model550050467-3PK
WarrantyLimited

3. Shell Rotella

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Shell Rotella T6 Full Synthetic 5W-40 Diesel Engine Oil 2.5-Gallon, Case of 2

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Shell Rotella #ad - Multi-functional dispersant additives provide an enhanced level of protection against the effects of soot, dirt, and other contaminants compared to previous formulation. Advanced low ash formulation helps protect the exhaust catalysts and particulate filters found on the latest low-emission vehicles.

Enhanced fuel economy capability of 1. 5 percent without compromising engine protection or durability compared to 15W-40 oils. Case of two 2. 5-gallon bottles. Increased shear stability for better viscosity control and optimal engine oil pressure. Exceptional wear protection for longer life in a wide range of heavy-duty engine applications — from pickup trucks to tractors to semi rigs.

Full synthetic 5w-40 diesel engine oil with Triple Protection Plus technology protects against wear, oil breakdown, deposits, and improves low-temperature flow. Better cold-cranking properties and low-temperature pumpability for reaching critical engine parts faster.
BrandShell Rotella #ad
ManufacturerShell Rotella #ad
Height15 Inches
Length16 Inches
Width10 Inches
Part Number550046215-2PK
Model550046215-2PK
WarrantyPlease contact retailer/seller for assistance

4. Shell Rotella

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

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Shell Rotella #ad - Controls engine wear 37 percent better than the maximum wear requirements in API CK-4 engine wear tests. Ideal for on-highway fleets, and agricultural machinery, construction, and diesel pickup trucks — including high-power vehicles that require resistance to heat and stress.

Improved oxidation performance for increased resistance to oil breakdown under high temperatures compared to the previous formulation. Helps control engine deposits for reliability at extended oil drain intervals always follow the OEM recommended oil drain interval. Case of three 1-gallon bottles with ergonomic design for easy handling and pouring. Synthetic blend 15w-40 diesel engine oil with Triple Protection Plus technology protects against wear, deposits, and oil breakdown. Improves low-temperature flow compared to conventional 15W-40 oils.
BrandShell Rotella #ad
ManufacturerShell Rotella #ad
Weight24 Pounds
Part Number550045348-3PK
Model550045348-3PK
WarrantySee manufacturer's label

5. Shell Rotella

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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 #ad - Case of three 1-gallon bottles with ergonomic design for easy handling and pouring. Exceptional wear protection for longer life in a wide range of heavy-duty engine applications — from pickup trucks to tractors to semi rigs.

Better cold-cranking properties and low-temperature pumpability for reaching critical engine parts faster. Increased shear stability for better viscosity control and optimal engine oil pressure. Enhanced fuel economy capability of 1. 5 percent without compromising engine protection or durability compared to 15W-40 oils. Full synthetic 5w-40 diesel engine oil with Triple Protection Plus technology protects against wear, deposits, oil breakdown, and improves low-temperature flow.

Multi-functional dispersant additives provide an enhanced level of protection against the effects of soot, dirt, and other contaminants compared to previous formulation. Advanced low ash formulation helps protect the exhaust catalysts and particulate filters found on the latest low-emission vehicles.
BrandShell Rotella #ad
ManufacturerRotella #ad
Weight23.55 Pounds
Part Number550045347-3PK
Model550045347-3PK
Warranty1 year limited

6. Valvoline

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

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Valvoline #ad - Outstanding wear protection. Strong shear stability provides stay-in-grade performance. Superior deposit protection compared to industry requirements. Valvoline premium blue Engine oil is The Only One exclusively endorsed and recommended by Cummins.
BrandValvoline #ad
ManufacturerValvoline #ad
Height11.44 Inches
Length14.5 Inches
Weight24 Pounds
Width9.13 Inches
Part Number773780
Model773780

7. Cummins

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Cummins 3265336 Onan SAE 15W-40 Oil, 1 Quart

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Cummins #ad - Reduces consumption and engine wear. 32 oz. Fit type: Universal. Factory tested oil. Provides maximum protection for engines.
BrandCummins #ad
ManufacturerCummins/Onan #ad
Height2.75 Inches
Length9 Inches
Weight1 Pounds
Width4.25 Inches
Part Number3265336
Model3265336

8. Triax

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Triax Fleet Supreme ESP 15W-40 API CK-4 Full Synthetic Diesel Engine Oil, Superb Powerstroke Performance 1 Gallon, Friction Optimized and Boosted with Molybdenum and Nano-Boron

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Triax #ad - Eliminates the need to clean the diesel particulate filters. This effectively doubles the life of diesel turbochargers. Extreme drain capable: 25, 000 miles use oil analysis. For use in virtually all diesel-powered pickups and heavy-duty trucks, both pre-2007 and post 2007 models fitted with emission control systems such as DPF, SCR, DOC.

New ck-4 spec and full compatible with all types of diesel engines. 60% lower wear than leading industry ZDDP products. Low ash formulation. Un-matched turbocharger protection - It will not create deposits and ash on turbo bearings will not fry on the turbo. Outstanding powerstroke engine performance including 6. 0 l turbo diesel - eliminates stiction and injector issues that plague Power-stroke engines - No need for additional additives - Contains state-of-the-art dispersal and ash control systems to keep your engine extremely clean.

High tbn - inorganic, 000 mile drain interval for pickups and 80, 000 for class 8 semi-trucks. Class 8 highway trucks regularly surpass 80, slow depleting TBN. Build in friction modifiers - crp organic metallic moly plating technology for unsurpassed wear protection, oxidation, and high temp stability.
BrandTriax #ad
ManufacturerTRIAX LUBRICANTS #ad
Height10.5 Inches
Length4.8 Inches
Width7.8 Inches
Part NumberF946