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Heavy-Duty Synthetic Diesel Oil 5W-40

Product code : ADOQT-EA

• Delivers 4X more wear protection1
Minimizes oil consumption
Excels in extreme temperatures
Helps keep trucks and equipment operating at peak performance
Offers outstanding value

1Based on third-party testing in the Detroit Diesel DD13 Scuffing Test for specification DFS 93K222 using 10W-30 as worst-case representation

• Delivers 4X more wear protection1
Minimizes oil consumption
Excels in extreme temperatures
Helps keep trucks and equipment operating at peak performance
Offers outstanding value

1Based on third-party testing in the Detroit Diesel DD13 Scuffing Test for specification DFS 93K222 using 10W-30 as worst-case representation

Heavy-Duty Synthetic Diesel Oil 5W-40



Developed to provide protection beyond conventional, synthetic-blend and other synthetic oils. AMSOIL synthetic technology delivers heavy-duty protection for diesel enthusiasts and those who depend on their trucks and equipment to make a living.

See the Product Data Bulletin for full details.


HEAVY-DUTY ENGINE PROTECTION

  • Delivers 4X more wear protection1
  • Helps maximize equipment life
  • Helps reduce maintenance costs and downtime

1Based on third-party testing in the Detroit Diesel DD13 Scuffing Test for specification DFS 93K222 using 10W-30 as worst-case representation

Delivers More Wear Protection

Third-party testing shows Heavy-Duty Synthetic Diesel Oil delivers 4X more protection against wear than required by Detroit Diesel’s* standard.I

IBased on third-party testing in the Detroit Diesel DD13 Scuffing Test for specification DFS 93K222 using 10W-30 as worst-case representation. *All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use.


VISCOSITY CONTROL

  • Resists oxidation and the thickening effects of soot contamination
  • Retains viscosity after high-temperature service for added engine protection and increased fuel economy
  • Provides up to 66 percent less oil consumption2

2Than required by the API CK-4 standard in the Caterpillar-1N oil consumption test

Reduces Oil Consumption

Heavy-Duty Synthetic Diesel Oil provides up to 66% less oil consumption.L

Reduces Oil Consumption – Heavy-Duty Synthetic Diesel Oil provides up to 66% less oil consumption.

L Than required by the API CK-4 standard in the Caterpillar-1N oil consumption test.


EXCELS IN EXTREME TEMPERATURES

  • Provides outstanding protection and performance in hot and cold temperature extremes
  • Delivers improved heat and oxidation resistance compared to conventional diesel oils
  • Flows dependably in cold temperatures for easier startup and improved engine protection

See the Product Data Bulletin for full details.

Heavy-Duty Synthetic Diesel Oil 5W-40



Heavy-Duty Synthetic Diesel Oil 5W-40

  • 5 star rating
    08 Dodge Ram 3500 mega cab
    By  MICHAEL,  a  Verified Buyer  from  Arizona  on  May 20, 2022
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    Looking forward to see how this oil compares to Rotella’s full synthetic 5W40.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great product
    By  PATRICK,  a  Verified Buyer  on  May 19, 2022
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    Trucks runs smoother and quieter
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Excellent oil. Ordering and delivery was a breeze
    By  FAWNA,  a  Verified Buyer  on  April 24, 2022
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    I am very impressed with the oil and customer service ♡
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Outstanding service and user interface
    By  Tony,  a  Verified Buyer  from  Houston, Tx  on  April 20, 2022
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    Did a lot of research so that I could make sure that I would get the best oil for my ecodiesel. The detergent and additives package in Amsoil oil met and exceeded all my needs. The user interface on the website was fantastic, clearly and concisely helping me pick the right product for my truck and suggesting the filter that I would need. Shipping was super fast and arrived just as described and well packaged. Would definitely and have suggested to friends and co workers.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great oil
    By  ADAM,  a  Verified Buyer  on  April 17, 2022
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    Love this oil. Runs good in my superduty.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    No comparison
    By  MATTHEW,  a  Verified Buyer  on  March 25, 2022
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    Used amsoil for years in most of my vehicles. Just started using it in my semi and have seen a decrease in oil consumption.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great service, fast delivery
    By  JMiller,  a  Verified Buyer  from  Waverly, Ohio   on  March 24, 2022
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    Amsoil has always had top notch products. The shipping time is amazing. Ordered and received my oil the next day
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    I use the Heavy-Duty Synthetic Diesel Oil in everything
    By  CURTIS,  a  Verified Buyer  from  Tuscola, Texas  on  March 23, 2022
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    My go-to oil for any application has been the Heavy-Duty Synthetic Diesel Oil in the 5W-30 weight by and large. Most of the actual diesel equipment use the 5W-40 weight.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Oil
    By  MICKY,  a  Verified Buyer  from  Coldspring TX  on  March 22, 2022
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    Na
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Amsoil Diesel Oil
    By  ROBERT,  a  Verified Buyer  on  March 20, 2022
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    Excellent diesel oil and I run it in my F250. I will continue to use Amsoil over Rotella oil
    Bottom Line
    Yes, I would recommend this to a friend.
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