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AMSOIL 15W-40 Heavy-Duty 100% Synthetic Diesel Oil

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

Warning - Click here for Proposition 65 information for this product

AMSOIL 15W-40 Heavy-Duty 100% Synthetic Diesel Oil



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.

AMSOIL 15W-40 Heavy-Duty 100% Synthetic Diesel Oil

Data Bulletin

Warranty

SDS



AMSOIL 15W-40 Heavy-Duty 100% Synthetic Diesel Oil

  • 5 star rating
    Best product
    By  TAYLOR,  a  Verified Buyer  from  Tennessee   on  April 29, 2024
    Been using AMSOIL in all my vehicles I wouldn’t use anything but AMSOIL
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Super Customer Service
    By  burned300,  a  Verified Buyer  from  Columbus, Ohio  on  April 21, 2024
    Order was correct & arrived in record time
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Diesel oil
    By  THOMAS,  a  Verified Buyer  from  Alberta  on  April 16, 2024
    great oil love it works great with bypass filter.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    wrong filter
    By  DANIEL,  a  Verified Buyer  from  92372  on  April 14, 2024
    the 2024 silverado3500hd filter number was wrong on your website and it did not fit
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Good Quality
    By  KENNETH,  a  Verified Buyer  from  Georgia   on  April 10, 2024
    Great protection and makes both diesel engines run quiter.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 4 star rating
    Great oil
    By  PETER,  a  Verified Buyer  from  Given WV  on  April 07, 2024
    Great oil and fast shipping
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    I use it in my F250. 6.7. Truck does not consume any
    By  JAMES,  a  Verified Buyer  on  March 29, 2024
    Very satisfied with this product great oil pressure and good power
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Not the cheapest, just the best!
    By  NICHOLAS,  a  Verified Buyer  on  March 25, 2024
    Best oil on the market for my money
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Best oil
    By  AL ,  a  Verified Buyer  from  Shelby Township   on  March 16, 2024
    This is the best 100 % synthetic oil in the market. I definitely recommend
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    New customer
    By  JIM,  a  Verified Buyer  from  Texas   on  February 21, 2024
    The ordering process was great and I have made my first trip pulling my 5th wheel. It seems to help my engin temperature was a couple of degrees cooler. I look forward to more traveling.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?