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20 Best Synthetic Engine Oil For Diesel Engines (2023 Updated)

Synthetic engine oil for diesel engines is designed to provide superior performance in terms of wear protection, deposit control, oil consumption, and high-temperature stability when compared to conventional petroleum-based oils.

20 Best Synthetic Engine Oil For Diesel Engines

Product Image Product Name Features Price

Shell Rotella T5 15W-40 Synthetic Blend Diesel Engine Oil – 1 Gal

  • 1 Gallon

Mobil 1 122260 5W40 Turbo Diesel Oil – 1 Gal – Case of 3

  • Exceptional resistance to high-temperature varnish and low-temperature sludge deposits to help keep engines clean
  • Outstanding wear protection

Valvoline Premium Blue SAE 10W-30 Diesel Engine Oil 1 Ga, Case of 3

  • 1 Ga, Case Of 3

Castrol Edge SAE 5W-30 Engine Motor Oil – 5 qt jug

  • 5 Quart

Valvoline 5W-40 Premium Blue Extreme Synthetic Diesel Engine Oil – 1gal (774038)

  • Enhanced fuel economy potential over conventional oils.
  • Superior synthetic base stocks provide faster, safe starts during freezing weather and enhanced thermal properties for hot weather operations.

Shell Rotella T6 Full Synthetic 15W-40 Diesel Engine Oil 1 Gallon

  • 15W / 1 Gallon

Rotella T6 5W-40 Full Synthetic Diesel Engine Oil – 1 Gal

  • Resists viscosity loss and maintains oil pressure through any use
  • Can handle extreme temperatures
  • Uses an anti wear system to increase longevity

Mobil 15W-40 1300 Super Heavy Duty Synthetic Blend Diesel Engine Oil – 2.5 Gal

  • Oxidation performance superior to most conventional oils
  • Excellent anti-wear and anti-scuff properties
  • Extended drains beyond conventional oils

Rotella T6 5W-40 Full Synthetic Heavy Duty Engine Oil, 2.5 Gal

  • Extended-drain capable
  • Energy saving fuel-economy performance
  • Excellent engine cleanliness and wear protection

Shell Rotella T6 Full Synthetic Multi-Vehicle 5W-30 Diesel Engine Oil, 1 Gallon

  • Increased shear stability for better viscosity control and optimal engine oil pressure
  • Strong oxidation protection helps to minimize the formation of acids and oil thickening, resulting in a longer, cleaner engine life

Shell T5 15W-40 Synthetic Blend Heavy Duty Diesel Engine Oil 2.5 Gal

  • Excellent wear protection
  • Exceptional deposit control/cleanliness
  • Protection against oil breakdown

Mobil Delvac 1 ESP 5W-40 Motor Oil – 1 Gal

  • Outstanding thermal and oxidation stability
  • Enhanced film strength at high temperatures
  • Inherent stay-in-grade shear stability

AMSOIL Signature Series Max-Duty Synthetic Diesel Oil 5W-40

  • 1 Gallon

Shell Rotella T4 15W-40 Diesel Motor Oil – 1 Gallon

  • Superior engine cleanliness for cleaner engine throughout oil drain interval
  • Enhanced protection against oxidation for more efficient operation

Mobil Delvac 112786 1300 Super 15w-40 Motor Oil – 1 gal jug

  • Reduced oil consumption
  • Superior low-temperature sludge control in stop-and-go service
  • Outstanding control of high-temperature deposits and oil oxidation

Synthetic Diesel Oil SAE 0W-20 in Quart Bottle (12) Count by AMSOIL

  • 12
Shell Rotella T5 15W-40 Synthetic Blend Diesel Engine Oil – 1 Gal
  • 1 Gallon
Mobil 1 122260 5W40 Turbo Diesel Oil – 1 Gal – Case of 3
  • Exceptional resistance to high-temperature varnish and low-temperature sludge deposits to help keep engines clean
  • Outstanding wear protection
Valvoline Premium Blue SAE 10W-30 Diesel Engine Oil 1 Ga, Case of 3
  • 1 Ga, Case Of 3
Castrol Edge SAE 5W-30 Engine Motor Oil – 5 qt jug
  • 5 Quart
Valvoline 5W-40 Premium Blue Extreme Synthetic Diesel Engine Oil – 1gal (774038)
  • Enhanced fuel economy potential over conventional oils.
  • Superior synthetic base stocks provide faster, safe starts during freezing weather and enhanced thermal properties for hot weather operations.
Shell Rotella T6 Full Synthetic 15W-40 Diesel Engine Oil 1 Gallon
  • 15W / 1 Gallon
Rotella T6 5W-40 Full Synthetic Diesel Engine Oil – 1 Gal
  • Resists viscosity loss and maintains oil pressure through any use
  • Can handle extreme temperatures
  • Uses an anti wear system to increase longevity
Mobil 15W-40 1300 Super Heavy Duty Synthetic Blend Diesel Engine Oil – 2.5 Gal
  • Oxidation performance superior to most conventional oils
  • Excellent anti-wear and anti-scuff properties
  • Extended drains beyond conventional oils
Rotella T6 5W-40 Full Synthetic Heavy Duty Engine Oil, 2.5 Gal
  • Extended-drain capable
  • Energy saving fuel-economy performance
  • Excellent engine cleanliness and wear protection
Shell Rotella T6 Full Synthetic Multi-Vehicle 5W-30 Diesel Engine Oil, 1 Gallon
  • Increased shear stability for better viscosity control and optimal engine oil pressure
  • Strong oxidation protection helps to minimize the formation of acids and oil thickening, resulting in a longer, cleaner engine life
Shell T5 15W-40 Synthetic Blend Heavy Duty Diesel Engine Oil 2.5 Gal
  • Excellent wear protection
  • Exceptional deposit control/cleanliness
  • Protection against oil breakdown
Mobil Delvac 1 ESP 5W-40 Motor Oil – 1 Gal
  • Outstanding thermal and oxidation stability
  • Enhanced film strength at high temperatures
  • Inherent stay-in-grade shear stability
AMSOIL Signature Series Max-Duty Synthetic Diesel Oil 5W-40
  • 1 Gallon
Shell Rotella T4 15W-40 Diesel Motor Oil – 1 Gallon
  • Superior engine cleanliness for cleaner engine throughout oil drain interval
  • Enhanced protection against oxidation for more efficient operation
Mobil Delvac 112786 1300 Super 15w-40 Motor Oil – 1 gal jug
  • Reduced oil consumption
  • Superior low-temperature sludge control in stop-and-go service
  • Outstanding control of high-temperature deposits and oil oxidation
Synthetic Diesel Oil SAE 0W-20 in Quart Bottle (12) Count by AMSOIL
  • 12

1. Shell Rotella T5 15W-40 Synthetic Blend Diesel Engine Oil – 1 Gal

Shell Rotella T5 15W-40 Synthetic Blend Diesel Engine Oil - 1 Gal

  • 1 Gallon

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Product Details

Specifications

Details
Size 1-Pack

Reviews From Real Customers

SixGunDan
dcarp
Hankfard

2. Mobil 1 122260 5W40 Turbo Diesel Oil – 1 Gal – Case of 3

Mobil 1 122260 5W40 Turbo Diesel Oil - 1 Gal - Case of 3

  • Exceptional resistance to high-temperature varnish and low-temperature sludge deposits to help keep engines clean
  • Outstanding wear protection
  • Improved protection against sludge and harmful deposits; Excellent fuel economy benefits

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eBay – speedway_motors
Speedway Motors
Tweetys RV and Truck Accessories

Product Details

Specifications

Details
Weight 24.02 oz

Reviews From Real Customers

Sizmo
KW Doc
rlbumich

3. Shell T6 Motor Oil 15W40 Full Synthetic 2.5 Gal US

Shell T6 Motor Oil 15W40 Full Synthetic 2.5 Gal US

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Product Details

Specifications

Details
Container Size 2.5 gal (US)
Weight Rating 15W40
Motor Oil Style and Type Full Synthetic

Reviews From Real Customers

Azazel
Lukeb1979
Case

4. Valvoline Premium Blue SAE 10W-30 Diesel Engine Oil 1 Ga, Case of 3

Valvoline Premium Blue SAE 10W-30 Diesel Engine Oil 1 Ga, Case of 3

  • 1 Ga, Case Of 3

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Walmart
Speedway Motors

Product Details

Specifications

Details
Product Dimensions 14.5 x 9.13 x 11.44 inches
Viscosity 10W-30

Reviews From Real Customers

Farmer Bill
valvoline.com

5. Castrol Edge SAE 5W-30 Engine Motor Oil – 5 qt jug

Castrol Edge SAE 5W-30 Engine Motor Oil - 5 qt jug

  • 5 Quart

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Walmart
Home Depot
AutoZone

Product Details

Specifications

Details
Vehicle 2014 Cadillac ELR 4 Cylinders 4 1.4L MFI HEV DOHC
Vehicle 1994 Isuzu Amigo 4WD 4 Cylinders E 2.6L MFI SOHC
Vehicle 2006 Volvo V70 5 Cylinders 2.4L MFI DOHC
Vehicle 2004 Volvo XC90 AWD 5 Cylinders 2.5L FI Turbo DOHC
Vehicle 2006 Volvo V70 5 Cylinders 2.5L FI Turbo DOHC

Reviews From Real Customers

Seton
LawDH
Mike o

6. Valvoline 5W-40 Premium Blue Extreme Synthetic Diesel Engine Oil – 1gal (774038)

Valvoline 5W-40 Premium Blue Extreme Synthetic Diesel Engine Oil - 1gal (774038)

  • Enhanced fuel economy potential over conventional oils.
  • Superior synthetic base stocks provide faster, safe starts during freezing weather and enhanced thermal properties for hot weather operations.
  • Enhanced valve train wear protection and reduced oil filter restriction at high soot levels.
  • Reduced high temperature carbon build-up and ring/liner wear protection lead to improved oil consumption control.
  • Excellent oxida.

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NAPA Auto Parts

Product Details

Specifications

Details
Base Oil – Engine and Motor Oils Full Synthetic
Container Type – Engine and Motor Oils Jug
SAE Grade – Engine and Motor Oils 5W-40
Temp. Range -30 Degrees to 220 Degrees F
Four-Ball Wear Not Specified

Reviews From Real Customers

Richey

7. Shell Rotella T6 Full Synthetic 15W-40 Diesel Engine Oil 1 Gallon

Shell Rotella T6 Full Synthetic 15W-40 Diesel Engine Oil 1 Gallon

  • 15W / 1 Gallon

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Home Depot

Product Details

Specifications

Details
Viscosity Grade 15W-40
Automotive Part Type Engine Oil
Container type Bottle
General Part Type Engine Oil
Number Of Units In Package 1

Reviews From Real Customers

Itssmie

8. Rotella T6 5W-40 Full Synthetic Diesel Engine Oil – 1 Gal

Rotella T6 5W-40 Full Synthetic Diesel Engine Oil - 1 Gal

  • Resists viscosity loss and maintains oil pressure through any use
  • Can handle extreme temperatures
  • Uses an anti wear system to increase longevity

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Lowe’s

Product Details

Specifications

Details
Size 1 Gallon

9. Mobil 15W-40 1300 Super Heavy Duty Synthetic Blend Diesel Engine Oil – 2.5 Gal

Mobil 15W-40 1300 Super Heavy Duty Synthetic Blend Diesel Engine Oil - 2.5 Gal

  • Oxidation performance superior to most conventional oils
  • Excellent anti-wear and anti-scuff properties
  • Extended drains beyond conventional oils
  • Stay-in-grade shear stability protects engine parts at high operating temperatures and reduces oil consumption

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Product Details

Specifications

Details
Part Type Engine Oil
Oil Type Semi-synthetic
Oil Weight 15W40
ZDDP Enhanced No
API Rating CK-4

Reviews From Real Customers

bradley0128
Frog
Jack of all trades

10. Rotella T6 5W-40 Full Synthetic Heavy Duty Engine Oil, 2.5 Gal

Rotella T6 5W-40 Full Synthetic Heavy Duty Engine Oil, 2.5 Gal

  • Extended-drain capable
  • Energy saving fuel-economy performance
  • Excellent engine cleanliness and wear protection
  • Excellent extreme high/low-temperature protection
  • Improved low-temperature flow

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Tractor Supply Company

Product Details

Specifications

Details
Assembled Product Weight 0 lb
Motor Oil Viscosity 5W – 40

11. Sinopec 15W40 Synthetic Diesel Engine Oil – 5 Gallon Pail (18l – 4.75 gal)

Sinopec 15W40 Synthetic Diesel Engine Oil - 5 Gallon Pail (18l - 4.75 gal)

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12. Shell Rotella T6 Synthetic 15W40 Motor Oil 2.5 Gallon

Shell Rotella T6 Synthetic 15W40 Motor Oil 2.5 Gallon

Product Details

Specifications

Details
Container Size 2.5gal
SAE Oil Weight 15W-40
Flash Point 752.0Deg. F
Oil Composition Full Synthetic

13. Shell Rotella T6 Full Synthetic Multi-Vehicle 5W-30 Diesel Engine Oil, 1 Gallon

Shell Rotella T6 Full Synthetic Multi-Vehicle 5W-30 Diesel Engine Oil, 1 Gallon

  • Increased shear stability for better viscosity control and optimal engine oil pressure
  • Strong oxidation protection helps to minimize the formation of acids and oil thickening, resulting in a longer, cleaner engine life
  • Single 1-gallon bottle with ergonomic design for easy handling and pouring

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Details
Size 1 Gallon

Reviews From Real Customers

Dakota
Whisperun
Johnnyrock

14. Shell T5 15W-40 Synthetic Blend Heavy Duty Diesel Engine Oil 2.5 Gal

Shell T5 15W-40 Synthetic Blend Heavy Duty Diesel Engine Oil 2.5 Gal

  • Excellent wear protection
  • Exceptional deposit control/cleanliness
  • Protection against oil breakdown

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Product Details

Specifications

Details
Assembled Product Weight 20.86 lb
Motor Oil Viscosity 15W – 40
Assembled Product Dimensions (L x W x H) 9.25 x 7.28 x 14.45 Inches

Reviews From Real Customers

Pearson
CaddoFlying
Horseman14

15. Mobil Delvac 1 ESP 5W-40 Motor Oil – 1 Gal

Mobil Delvac 1 ESP 5W-40 Motor Oil - 1 Gal

  • Outstanding thermal and oxidation stability
  • Enhanced film strength at high temperatures
  • Inherent stay-in-grade shear stability
  • Advanced formulation and viscometrics

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Tractor Supply Company
Advance Auto Parts

Product Details

Specifications

Details
Oil Weight 5W-40
Package Quantity 1
For Use with Diesel Engines Yes
For Use with RV Engines Yes
Blend Type Full synthetic

Reviews From Real Customers

craig
Cygnus
FWD II

16. AMSOIL Signature Series Max-Duty Synthetic Diesel Oil 5W-40

AMSOIL Signature Series Max-Duty Synthetic Diesel Oil 5W-40

  • 1 Quart

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AMSOIL

Product Details

Specifications

Details
Package Quantity Pack of 1
Volume 1qt
Fuel Type Diesel

Reviews From Real Customers

BOBBYG09
Hauss
BOB

17. Shell Rotella T4 15W-40 Diesel Motor Oil – 1 Gallon

Shell Rotella T4 15W-40 Diesel Motor Oil - 1 Gallon

  • Superior engine cleanliness for cleaner engine throughout oil drain interval
  • Enhanced protection against oxidation for more efficient operation
  • Increased shear stability for better viscosity control and optimal oil pressure
  • Improved oil aeration

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Details
Wear control Keeps moving surfaces apart for a longer life.

Reviews From Real Customers

Wise Jack
Volvo 79

18. Mobil Delvac 112786 1300 Super 15w-40 Motor Oil – 1 gal jug

Mobil Delvac 112786 1300 Super 15w-40 Motor Oil - 1 gal jug

  • Reduced oil consumption
  • Superior low-temperature sludge control in stop-and-go service
  • Outstanding control of high-temperature deposits and oil oxidation
  • Reduced low temperature sludge build-up and high temperature deposits
  • Greater engine efficiency, long engine life and long oil life

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Product Details

Specifications

Details
Units in Package 1
Unit Size 3.78 gal
Warnings Caution: Continuous contact with uses motor oil has caused skin cancer in animal tests. Avoid prolonged contact. Wash skin thoroughly with soap and water. Launder or discard soiled clothes.

Reviews From Real Customers

The Grass Guys
Renato Trucking

19. Synthetic Diesel Oil SAE 0W-20 in Quart Bottle (12) Count by AMSOIL

Synthetic Diesel Oil SAE 0W-20 in Quart Bottle (12) Count by AMSOIL

  • 12

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Amazon
AMSOIL

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Reviews From Real Customers

DARRYL
GENO

20. AMSOIL 15W-40 Heavy Duty Synthetic Diesel Oil (12 Quarts)

AMSOIL 15W-40 Heavy Duty Synthetic Diesel Oil (12 Quarts)

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AMSOIL

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Conclusion

The conclusion of synthetic engine oil for diesel engines is that it is an effective and efficient way to lubricate and protect your engine. It is also a good choice for those who want to extend the life of their engine and reduce wear and tear.

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