Best Synthetic Engine Oil For Diesel Engines

Peter | 13-12-2023

If you aren’t someone who makes frequent purchases, selecting the best Best Synthetic Engine Oil For Diesel Engines won’t be an easy chore for you. However, you shouldn’t be concerned because we have provided you with the most comprehensive list possible of the top Best Synthetic Engine Oil For Diesel Engines. Have a look at the products on our list, and pick the ones that appeal to you the most.

We researched and tested Best Synthetic Engine Oil For Diesel Engines in the market to get you this list. Our most recommended product is Shell Rotella Best Synthetic Engine Oil For Diesel Engines. Check out our picks for all of our favorites, and be sure to read our buying guide to get all the information you need to make the best choice!

Editor's Choice
Shell Rotella T6 Full Synthetic 5W-40 Diesel Engine Oil (1-Gallon, Single Pack)
Shell Rotella T6 Full Synthetic 5W-40 Diesel Engine Oil (1-Gallon, Single Pack)
Premium Pick
Shell Rotella T5 Synthetic Blend 15W-40 Diesel Engine Oil (1 Gallon, Single Pack)
Shell Rotella T5 Synthetic Blend 15W-40 Diesel Engine Oil (1 Gallon, Single Pack)
Budget Pick
Mobil 1 Turbo Diesel Truck Full Synthetic Motor Oil 5W-40, 1 Gal
Mobil 1 Turbo Diesel Truck Full Synthetic Motor Oil 5W-40, 1 Gal

Top 10 Best Synthetic Engine Oil For Diesel Engines

We researched and compared the top products in the Best Synthetic Engine Oil For Diesel Engines category to provide you with these recommendations.

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

Shell Rotella T6 Full Synthetic 5W-40 Diesel Engine Oil (1-Gallon, Case of 3)
7.7

Shell Rotella

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  • Full synthetic 5W-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

2. Shell Rotella T6 Full Synthetic 5W-40 Diesel Engine Oil (1-Gallon, Single Pack)

Shell Rotella T6 Full Synthetic 5W-40 Diesel Engine Oil (1-Gallon, Single Pack)
9.5

Pennzoil

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  • Full synthetic 5W-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
  • Single 1-gallon bottle 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

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

Shell Rotella T5 Synthetic Blend 15W-40 Diesel Engine Oil (1 Gallon, Single Pack)
9.1

Shell Rotella

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  • 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

4. Mobil 1 Turbo Diesel Truck Full Synthetic Motor Oil 5W-40, 1 Gal

Mobil 1 Turbo Diesel Truck Full Synthetic Motor Oil 5W-40, 1 Gal
8.9

Mobil 1

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  • Mobil 1 Turbo Diesel Truck Is Designed For Modern Diesel Truck Engines, Delivering Long Drain Capability, Exceptional Performance, And Potential Fuel Economy Benefits
  • Meets Or Exceeds The Demanding Specifications Of Major Truck Manufacturers - One Engine Oil Can Be Used For Mixed Fleet Operations
  • Recommended For Use In All Super High-Performance Diesel Applications, Including Low Emission Engines
  • Helps Engines Last Longer By Reducing Low-Temperature Sludge Buildup And High-Temperature Deposits

5. AC Delco DexosD 0w-20 Light Duty Diesel Engine Oil 19370138, 10-9277 and AC Delco PF66, 55495105,

AC Delco DexosD 0w-20 Light Duty Diesel Engine Oil 19370138, 10-9277 and AC Delco PF66, 55495105,
8.7

Honbeanify

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  • Exceeds ILSAC GF-5/APIstandards for protection against deposits, wear, and low speed preignition, especiallyturbocharged engines.
  • Exceeds ILSAC GF-5/APIstandards for protection against deposits, wear, and low speed preignition, especiallyturbocharged engines.
  • Meets ILSAC GF-5 specificationsfulfill current energy-conserving performance standards
  • Meets APIService Classification requirementsbe suitable for usemodern engines

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

Schaeffer Manufacturing Co. 0700CK4-006S SynShield Durability Advantage 15W-40 Diesel Engine Oil,
8.5

Schaeffer Manufacturing Co.

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  • 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

7. Schaeffer Manufacturing Co. 9000CK4-006S SynShield OTR Plus Full Synthetic Diesel Engine Oil 5W-40,

Schaeffer Manufacturing Co. 9000CK4-006S SynShield OTR Plus Full Synthetic Diesel Engine Oil 5W-40,
8.3

Schaeffer Manufacturing Co.

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  • Maintains Fuel Economy Without Sacrificing Engine Durability.
  • Superior Cold Weather Startability And Operating Characteristics.
  • Oil Strength: Withstands Higher Heat Range Than Conventional Oils.
  • Keep-Clean Performance: Superior Soot Busting, Deposit-Dispersing Capability.

8. Triax Fleet Supreme ESP 15W-40 API CK-4 Full Synthetic Diesel Engine Oil, Friction Optimized and

  • 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

9. Mobil 1 44986 5W-40 Turbo Diesel Truck Synthetic Motor Oil - 1 Quart (Pack of 6)

Mobil 1 44986 5W-40 Turbo Diesel Truck Synthetic Motor Oil - 1 Quart (Pack of 6)
7.9

Mobil 1

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  • Fit type: Universal Fit
  • Package Dimensions: 7.63 L x 9.63 H x 8.13 W (inches)
  • Package Weight : 11 pounds
  • Country of Origin : China

10. Ford Genuine XO-5W40-5QSD SAE 5W-40 Full Synthetic Diesel Motor Oil - 1.25 U.S. Gal (4.73L), Single

  • It satisfies the requirements as well as most other domestic and import diesel engine manufacturers
  • Country of Origin : United States
  • The Package Height of the Product is 14.0 inches
  • The Package Length of the Product is 8.0 inches

Peter

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