Top 9 DIESEL Oil 15W-40 – Motor Oils

As an Amazon Associate I earn from qualifying purchases.

1. Valvoline


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

Valvoline #ad - One solution technology suitable for a wide range of heavy-duty engines including diesel, gas and natural gas applications. Superior wear protection for hardworking heavy-duty trucks and equipment. The only one“ endorsed and recommended by Cummins. Outstanding oxidation resistance supports long oil life in heavy duty engines.
BrandValvoline #ad
ManufacturerValvoline #ad
Height11.44 Inches
Length14.5 Inches
Weight24 Pounds
Width9.13 Inches
Part Number773780

2. Chevron


Delo 257004470 400 XLE SAE Synblend Synthetic Blend Oil 15W40

Chevron #ad - Its high performing detergent and dispersant additives provide excellent diesel engine component protection. 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.

Isoclean: certified clean - ensure your lubricants meet OEM cleanliness requirements to help you minimize downtime, reduce maintenance costs and extend equipment life. Exceptional soot dispersancy and wear control - Cylinders, pistons, providing optimum service life and minimal maintenance, and valve train components are well protected against wear and corrosion, rings, contributing to maximum equipment utilization and minimal downtime.

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. Provides high performance piston deposit control and turbocharger protection due to its superb oxidation performance.
BrandChevron #ad
ManufacturerChevron #ad
Height12.1 Inches
Length7.8 Inches
Width4.33 Inches
Part Number257004470
WarrantySee manufacturer's warranty

3. Shell Rotella


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

Shell Rotella #ad - Triple protection plus formula combines fully synthetic base oils with advanced additives for excellent equipment protection and long engine life. Engineered with shear stability to resist viscosity loss and maintain optimal engine oil pressure. Provides 1. 5% improved fuel economy performance compared to SAE 15W-40 oils. Formulated with additive technology that protects against the effects of soot, dirt and other contaminants. For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.
BrandShell Rotella #ad
ManufacturerRotella #ad
Part Number550050467

4. Shell Rotella T


Shell Rotella T, 550045348 5 Synthetic Blend 15W-40 Diesel Motor Oil 1-Gallon, Single-Pack

Shell Rotella T #ad - Advanced low-ash formulation helps control the blocking or poisoning of exhaust after treatment devices, helping maintain vehicle emission compliance and engine fuel efficiency.

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. The advanced formulation delivers good engine cleanliness and protection against piston deposits ensuring engine and component reliability at extended oil drain intervals. For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.
BrandShell Rotella T #ad
ManufacturerRotella #ad
Height12.6 Inches
Length7.7 Inches
Width3.6 Inches
Part Number550045348
WarrantyPlease contact retailer/seller for assistance

5. Mobil 1


4 Gallon Pack, Mobil 1 112786 Delvac 1300 Super 15W-40 Diesel Engine Oil

Mobil 1 #ad - Pack of 4. Dimension - 4. 25 x 7. 75 x 11. 8 in. Delvac 1300 gallon 15w40 Super Diesel Engine Oil. Item weight - 7. 75 lbs. Package Quantity: 4.
BrandMobil 1 #ad
ManufacturerMobil #ad
Height12.1 Inches
Length10.8 Inches
Width16 Inches
Part NumberMOB1304G

6. Shell Rotella T


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

Shell Rotella T #ad - 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. Formulated to control engine wear, 37% better than the maximum wear requirements in API CK-4 engine wear tests. Delivers improved oxidation performance for increased resistance to breakdown under high temperatures compared to the previous formulation. For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.
BrandShell Rotella T #ad
ManufacturerRotella #ad
Weight24 Pounds
Part Number550045348-3PK

7. Shell Rotella


1 Quart Pack of 6, Shell Rotella 550049483-6PK T4 Triple Protection 15W-40 Diesel Engine Oil CK-4

Shell Rotella #ad - Formulated with advanced additive technology, which is engineered for superior engine cleanliness throughout the oil drain interval.

Triple protection from wear, deposits and oil breakdown, this conventional Diesel Engine Oil provides exceptional wear protection for heavy duty engines for longer life. Provides increased shear stability for better viscosity control and optimal engine oil pressure. For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual. Provides enhanced protection against oil oxidation for more efficient operation. Heightens emission control system durability and improves oil aeration.
BrandShell Rotella #ad
ManufacturerShell Rotella #ad
Part Number550049483-6PK
WarrantyPlease contact manufacturer for assistance

8. Schaeffer Manufacturing Co


1-Gallon Bottle Pack of 6, Schaeffer Manufacturing Co. 0700CK4-006 SynShield Durability Advantage Diesel Engine Oil 15W-40

Schaeffer Manufacturing Co #ad - Friction modified with Micron Moly and Penetro. 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.
BrandSchaeffer Manufacturing Co #ad
ManufacturerSchaeffer Manufacturing Co. #ad
Part Number0700CK4-006
WarrantyCheck with the manufacturer.

9. Lucas Oil


Lucas Oil SAE 15W-40 MAGNUM CK-4 DIESEL OIL,1 GAL 10287

Lucas Oil #ad - Country of Origin : United States. Fit type: Universal Fit. Package weight: 3. 517 kilograms. Package dimensions: 303 h x 9. 0 l x 21. 4 w centimetres.
BrandLucas Oil #ad
ManufacturerLUCAS OIL #ad
Height3.5 Inches
Length12 Inches
Weight7.5 Pounds
Width8.37 Inches
Part Number10287
WarrantyManufaturer warranty