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Heavy-Duty Synthetic Diesel Oil 15W-40

Product code : ADPQTC-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

SDS

Data Bulletin

Warranty



Heavy-Duty Synthetic Diesel Oil 15W-40

  • 5 star rating
    Oil
    By  STEVEN,  a  Verified Buyer  on  November 22, 2022
    Love your synthetic products.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Oil
    By  JOHN,  a  Verified Buyer  on  October 31, 2022
    The oil is great. However, my promo prize was sent to the wrong address.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Only oil I use in my diesel
    By  John,  a  Verified Buyer  from  Haverhill, Iowa   on  October 31, 2022
    After my distributor moved, I had to resort to using Rotella until I found a new one. I've used Amsoil for about 6 years. It is more expensive, but after sinking $11,000 into my truck for new injectors and other upgrades it's all I use. I trust it to keep my truck running like new. It has 220k miles and runs great. We pull a fifth wheel in the spring, summer and fall. I have NEVER had to add oil. My operating temperature is always steady and there is a difference in noise reduction with Amsoil. The extra money is worth peace of mind to just get in and go anywhere. I'm a customer for life.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    L5P Durmax Oil
    By  DENNIS,  a  Verified Buyer  from  Lenexa Kansas  on  October 27, 2022
    Engine seems to run quieter on Amsoil. Love the 10 quart jug.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Semi oil
    By  CHIP,  a  Verified Buyer  from  Missouri  on  October 16, 2022
    I have switched everything I own o er to Amsoil. Thus product in particular, has improved my 2005 W-900 wear metals by 70% according to wix oil analysis. I e seen a difference in fuel mileage, & rough start ups as well. I run this oil 30-35k miles. I change all filters @ 15-18k & top off!! Also have an Amsoil oil bypass system in that helps
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 4 star rating
    diesel oil
    By  JIM,  a  Verified Buyer  from  oil  on  October 13, 2022
    this diesel oil is good. better than Mobil 1.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    #AMSOIL🇺🇸🇨🇦
    By  JR,  a  Verified Buyer  from  Amherstburg, ON Canada  on  October 09, 2022
    In my Professional Opinion as a Skilled Tradesman with 35+ years experience I absolutely rate and choose Amsoil products #1. I use Amsoil in everything I own, from my Duramax Diesel Daily Driver to my Classic 1952 Chevrolet "Super-Charged" C10 Pickup. I know and Trust Amsoil Products is the Best Protection my Money can buy! Respectfully, John Richard 🇺🇸🇨🇦
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Good oil
    By  TOM,  a  Verified Buyer  from  Tennessee  on  September 22, 2022
    this oil by far is the best for my diesel engine. what i do not like is getting weekly, bi-weekly emails with continual free offers from the company when you buy something. it is not like i need to buy oil every few weeks. but i continue to get offers. why not make a list of free offers so when you do buy product and meet a certain dollar value -- you have a list of promotional material to choose from as a free gift from Amsoil. Pick one!!! i would of liked the bottle koozies - which were offered after i placed my order. i did get free shipping which is appreciated, but the continual marketing promotional offers need to be addressed and consolidated. no complaints with the product at all.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    What a difference
    By  Wayne,  a  Verified Buyer  from  PA  on  September 09, 2022
    The oil holds up in all conditions a good bit more Money but seems to be well worth it in the long run for the engine. 7.3 Ford motor
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    2005 lly duramax
    By  PAUL,  a  Verified Buyer  on  September 04, 2022
    Been using it for years
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?