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Heavy-Duty Synthetic Diesel Oil 15W-40

Product code : ADPQT-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 15W-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 15W-40



Heavy-Duty Synthetic Diesel Oil 15W-40

  • 5 star rating
    Excellent Oil
    By  ROGER,  a  Verified Buyer  from  Dalmeny,Sask  on  May 12, 2022
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    Anywhere I use oil or fuel treatment I use Amsoil only excellent product
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Good oil
    By  DANIEL,  a  Verified Buyer  on  May 07, 2022
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    Good oil fast delivery I use amsoil in everything I own
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great oil!
    By  Billy,  a  Verified Buyer  from  AR  on  May 04, 2022
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    Great oil for my 04 6.0 power stroke!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great sound reduction in my motor.
    By  PRESTON,  a  Verified Buyer  from  Magnolia, Texas  on  May 03, 2022
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    I put this oil in my 05 f350, 6.0. Immediately it reduced the clacking in my motor. I believe it's running more smooth too.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Quiet
    By  PATRICK,  a  Verified Buyer  on  April 18, 2022
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    My truck runs smoother and less engine noise
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    best oil
    By  LAWRENCE,  a  Verified Buyer  from  PHMotorsportz  on  April 15, 2022
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    best oil money can buy
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    recommend
    By  Niner,  a  Verified Buyer  from  WI  on  April 14, 2022
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    excellent oil for me Diesel pickup easy starts ebven in the coldest of days in the winter and excellent protection
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Don't skimp when it comes to oil in your diesel PU
    By  JOHN R,  a  Verified Buyer  from  Holley NY  on  April 13, 2022
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    Considering the cost of a Diesel PU using any oil less than the best seems dumb. Never had any trouble using Amsoil.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Running amsoil in my personal vehicles
    By  YALE,  a  Verified Buyer  from  Florida   on  April 13, 2022
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    This is a great Product (possibly the best) oil available I have seen the results first hand using amsoil in my chainsaws / mx dirt bikes / and my diesel truck. You can see the difference in quality right away where other oils are thin and watery amsoil is still holding it’s viscosity with over twice the length of time of top leading oils that are synthetic or not I became a believer after running it in my 2019 kx450 after running top synthetic oil before amsoil and running amsoil after it became clear that amsoil is superior to any oils I have ever used where I had to change my oil ever 7 hrs maximum amsoil goes beyond my oil filter time life of 15 hrs which is ridiculous amount of time for a kx450 I run amsoil in all my personal vehicles
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Diesel oil
    By  GERALD,  a  Verified Buyer  on  April 10, 2022
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    Only oil I run in my 2008 F 250 6.4 which is still stock at 170,000 miles. It improve my fuel mileage and run cooler. I also run this in all my tractors best oil on the market.
    Bottom Line
    Yes, I would recommend this to a friend.
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