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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
    Review
    By  JEFFREY,  a  Verified Buyer  on  January 02, 2022

    Describe the issue

    I gotta say Amsoil is one of the best products I’ve ever used in my bike my truck and everything else I use it in and I gotta say I love having it delivered to my house Best product out there
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5
    Quieter than Rotella T6
    By  BENJAMIN,  a  Verified Buyer  on  December 19, 2021

    Describe the issue

    First time trying Amsoil in the old 7.3 Powerstroke that’s lived it’s life on Delo and Rotella. The engine definitely runs quieter on this than than any of the others, and all temp but especially cold start. No UOA as of yet but it seems very happy with this oil.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    5w40 orange cap
    By  MARK,  a  Verified Buyer  on  December 09, 2021

    Describe the issue

    Awesome oil I really am impressed running this in my 12v Cummins with over 300k on the motor starts great in the cold and seems to run very smooth
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Quality
    By  ALAN,  a  Verified Buyer  on  December 02, 2021

    Describe the issue

    I have used Amsoil in the past that I purchased through a friend at work. I have since retried and went online to hopefully purchase Amsoil for my Dodge diesel. I rate this product very high and recommend it to family and friends.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Affordable, yet the very best you can get
    By  DANIEL,  a  Verified Buyer  from  Texas  on  November 26, 2021

    Describe the issue

    After watching many oil test videos I decided to give it a try and have been extremely happy.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Great product and delivery time
    By  RUSTY,  a  Verified Buyer  from  Utah   on  November 25, 2021

    Describe the issue

    Started running in my last 2 diesels, I can’t imagine running anything else. And it’s priced similar to other oils
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Great diesel oil
    By  AUGIE,  a  Verified Buyer  from  Tofte Minnesota  on  November 22, 2021

    Describe the issue

    Use in my Cummins and am more than happy with its longevity and performance
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Expensive motor is worth it!
    By  HAROLD,  a  Verified Buyer  from  Mesquite, NV  on  November 07, 2021

    Describe the issue

    I've been using Amsoil for over 25 years. You can say, i am familiar with the benefits of their products lol! My wife bought a Dodge 1500 diesel, great truck, but if the engine goes, it's $10,000; just the engine. Running Amsoil, i know it's as protected as possible.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Quality lubricants
    By  KENNETH,  a  Verified Buyer  from  Michigan   on  November 05, 2021

    Describe the issue

    Quality lube for all your diesel needs. I use it in my 6.7 powerstroke and my JD 1025r. The deere is noticeably quieter during warm up with the 5/40!
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Great stuff
    By  DANIEL,  a  Verified Buyer  from  Western Massachusetts   on  November 03, 2021

    Describe the issue

    Used to run rotella T6 in my powerstroke diesel. Since I’ve joined the preferred customer program it actually was cheaper to buy amsoil. I’ll never turn back!
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?