The Best 15W-40 Diesel Oils

8,441 Reviews Scanned

 

1
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
NOW ON SALE!2
Shell Rotella T5 Synthetic Blend 15W-40 Diesel Engine Oil (1-Gallon, Case of 3)
  • Triple Protection Plus technology protects against wear, deposits and oil breakdown plus provides better low temperature flow compared to SAE 15W-40 oils
  • Helps control engine deposits for reliability at extended oil drain intervals
  • Formulated to control engine wear, 37% better than the maximum wear requirements in API CK-4 engine wear tests
  • Heavy duty engine oil formulated with synthetic base oil components
  • Delivers improved oxidation performance for increased resistance to breakdown under high temperatures compared to the previous formulation
3
Rotella T6 Full Synthetic 15W-40 Diesel Engine Oil (1-Gallon, Case of 3)
  • For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.
  • Provides 1. 5% improved fuel economy performance compared to SAE 15W-40 oils
  • Triple Protection Plus formula combines fully synthetic base oils with advanced additives for excellent equipment protection and long engine life
  • Formulated with additive technology that protects against the effects of soot, dirt and other contaminants
  • Engineered with shear stability to resist viscosity loss and maintain optimal engine oil pressure
4
Valvoline Premium Blue SAE 15W-40 Diesel Engine Oil 1 GA, Case of 3
  • Approved or Recommended for applications where Cummins CES 20086, Mack EOS-4.5, Volvo VDS-4.5, Detroit Diesel DFS 93K222, Renault VI RLD-4, Allison TES-439, ACEA E9, ACEA E7, MB 228.31, MTU Category...
  • 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
5
Shell Rotella T5 Synthetic Blend 15W-40 Diesel Motor Oil (1-Gallon, Single-Pack)
  • 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
  • The Advanced formulation delivers good engine cleanliness and protection against piston deposits ensuring engine and component reliability at extended oil drain intervals.
  • Rotella T5 meets the requirements of the major US engine manufacturers for low emission applications.
6
Schaeffer Manufacturing Co. 0700CK4-012 SynShield Durability Advantage 15W-40 Diesel Oil, 12 Quart, Bottle (Pack of 12)
  • 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
NOW ON SALE!7
Delo 400 SDE SAE 15W-40 Motor Oil - 1 Gallon Jug, (Pack of 3)
  • For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.
  • 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
8
Mobil Super 96819 15W-40 Delvac 1300 Motor Oil - 1 Gallon (Pack of 4)
  • For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.
9
Rotella Shell Rotella T6 Full Synthetic 5W-40 Diesel Engine Oil (1-Gallon, Single Pack, New Packaging)
  • Provides 1. 5% improved fuel economy performance compared to SAE 15W-40 oils
  • Triple Protection Plus formula combines fully synthetic base oils with advanced additives for excellent equipment protection and long engine life
  • Formulated with additive technology that protects against the effects of soot, dirt and other contaminants
  • Engineered with shear stability to resist viscosity loss and maintain optimal engine oil pressure
  • Suitable for diesel-powered vehicles from tractor/trailers to classic cars and heavy-duty diesel pickups that allow an SAE 5W-40
10
Delo 222290428 400 SDE SAE 15W-40 Motor Oil - 5 Gallon Pail
  • 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

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These questions and more will make purchase decisions difficult for anyone. We feel you because we do the research when we’re about to make an order as well.

Before you decide to buy anything, make sure you research and read the reviews from trusted sources. Luckily, we use incredibly smart and sophisticated AI to help find great products. We use our own custom algorithms to generate lists of the best brands and give them our own approval rating to rank from 1st to 10th.

You can see the 15W-40 Diesel Oils of above. This list is updated regularly, so you can be sure that the information provided is up-to-date.

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Last update on 2020-11-28 / Affiliate links / Images from Amazon Product Advertising API

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About Mary Weyand 3048 Articles
Mary founded Scoop Tour with an aim to bring relevant and unaltered news to the general public with a specific view point for each story catered by the team. She is a proficient journalist who holds a reputable portfolio with proficiency in content analysis and research. With ample knowledge about the Automobile industry, she also contributes her knowledge for the Automobile section of the website.

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