Top 10 Best Diesel Engine Oil 15w40 Reviews With Scores

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We've found 41815 reviews. We have considered users feedback on Diesel Engine Oil 15w40 and our suggestions includes in this article.

Best Diesel Engine Oil 15w40

Introduction of Best Diesel Engine Oil 15w40

Ten products details available for Best Diesel Engine Oil 15w40. We have selected these products on 41815 reviews. Read each of the products details below on "Diesel Engine Oil 15w40 Reviews". You will see our scores on "Best Diesel Engine Oil 15w40" which is helpful whose also looking for "Diesel Engine Oil 15w40 Reviews".

NoProductScoreAction
1Valvoline VV70506-05 Premium Blue 15W40 Motor Oil9.6Buy On Amazon
2Shell Rotella T4 Triple Protection Conventional 15W-40 Diesel Engine Oil (1-Gallon, Case of 3)9.4Buy On Amazon
3Valvoline Premium Blue SAE 15W-40 Diesel Engine Oil 1 GA9.4Buy On Amazon
4Delo 400 SDE SAE Conventional Heavy Duty Diesel Engine Oil 15W-409.2Buy On Amazon
5Shell Rotella T6 Full Synthetic 15W-40 Diesel Engine Oil (1-Gallon, Case of 3)8.8Buy On Amazon
6Shell Rotella 15W40 Motor Oil (Gallon)8.6Buy On Amazon
7Rotella T4 15w40 Heavy Duty Motor Oil - 1 Gallon Bottles - 6 Pack8.6Buy On Amazon
8Shell Rotella T5 Synthetic Blend 15W-40 Diesel Engine Oil (1-Gallon, Case of 3)8.6Buy On Amazon
9Shell Rotella T6 Full Synthetic 15W-40 Diesel Engine Oil (1-Gallon, Single Pack)8.6Buy On Amazon
10Shell Rotella T4 Triple Protection Conventional 15W-40 Diesel Engine Oil (1-Quart, Case of 6)8.2Buy On Amazon

Table Of Content:

1. Valvoline VV70506-05 Premium Blue 15W40 Motor Oil

  • Approved or Recommended for applications where Cummins CES 20086, Mack EOS-4.
  • Approved or Recommended for applications where Detroit Diesel DFS 93K218 or Deutz DQC III-10LA are specfied.
  • Excellent oxidation resistance and TBN retention supports long oil life
  • Strong shear stability provides stay-in-grade performance

2. Shell Rotella T4 Triple Protection Conventional 15W-40 Diesel Engine Oil (1-Gallon, Case of 3)

  • Triple Protection from wear, deposits and oil breakdown, this conventional Diesel Engine Oil provides exceptional wear protection for heavy duty engines for longer life.
  • Formulated with advanced additive technology, which is engineered for superior engine cleanliness throughout the oil drain interval.
  • Provides increased shear stability for better viscosity control and optimal engine oil pressure
  • Package Weight : 23.8 pounds

3. Valvoline Premium Blue SAE 15W-40 Diesel Engine Oil 1 GA

  • Valvoline Premium Blue Engine oil is The Only One exclusively endorsed and recommended by Cummins
  • Strong shear stability provides stay-in-grade performance
  • Outstanding wear protection
  • Superior deposit protection compared to industry requirements

4. Delo 400 SDE SAE Conventional Heavy Duty Diesel Engine Oil 15W-40

  • Premium quality heavy duty motor oil manufactured in the USA
  • Formulated to meet the requirements of post-2007 low emission engines
  • Provides outstanding performance with ultra-low sulfur diesel and also with normal and low sulfur diesel fuels.
  • May be used in older conventional engines and gasoline engines
  • Formulated with ISOSYN technology

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

  • Full synthetic 15W-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.
  • 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.

6. Shell Rotella 15W40 Motor Oil (Gallon)

  • Protects under the most severe engine conditions found in modern low-emission engines and older hard working diesel engines.
  • Exceptional wear protection for longer engine life
  • Superior engine cleanliness for a 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

7. Rotella T4 15w40 Heavy Duty Motor Oil – 1 Gallon Bottles – 6 Pack

  • Heavy-duty diesel engine oil
  • Protects against corrosion as fuel burns and oil ages
  • Keeps engine clean for optimum performance
  • Helps keep moving metal engine surfaces apart for long life

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

  • 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.
  • Case of three 1-gallon bottles with ergonomic design for easy handling and pouring

9. Shell Rotella T6 Full Synthetic 15W-40 Diesel Engine Oil (1-Gallon, Single Pack)

  • Full synthetic 15W-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.
  • 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.

10. Shell Rotella T4 Triple Protection Conventional 15W-40 Diesel Engine Oil (1-Quart, Case of 6)

  • Conventional 15W-40 diesel engine oil with Triple Protection technology protects against wear, deposits, and oil breakdown.
  • Formulated with advanced additive technology for enhanced deposit control and superior engine cleanliness throughout the oil drain interval.
  • Enhanced protection against oil oxidation for more efficient operation
  • Increased shear stability for better viscosity control and optimal engine oil pressure
  • Wear control helps keep moving metal engine surfaces apart for a longer life
  • Meets or exceeds API CK-4 requirements and is designed to provide extra performance in both older and new engines.
  • Case of six 1-quart bottles
  • Exceptional wear protection for longer life in a wide range of heavy-duty engine applications — from diesel pickup trucks to tractors to tractor trailers.

Best Diesel Engine Oil 15w40 Buying Guide: Features To Consider

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