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Signature Series Max-Duty Synthetic Diesel Oil 5W-30

Product code : DHDQT-EA

Outstanding extreme-pressure protection
Delivers 6X more wear protection1
Maintains proper viscosity (thickness)
Minimizes oil consumption
Maximizes fuel efficiency
Excels in extreme temperatures

1Based on third-party testing in the Detroit Diesel DD13 Scuffing Test for specification DFS 93K222 using 5W-30 as worst-case representation

Outstanding extreme-pressure protection
Delivers 6X more wear protection1
Maintains proper viscosity (thickness)
Minimizes oil consumption
Maximizes fuel efficiency
Excels in extreme temperatures

1Based on third-party testing in the Detroit Diesel DD13 Scuffing Test for specification DFS 93K222 using 5W-30 as worst-case representation

Signature Series Max-Duty Synthetic Diesel Oil 5W-30



Developed to protect the horsepower diesel enthusiasts crave and extend the life of hard-working commercial equipment in the most severe conditions. Signature Series synthetic technology delivers max-duty protection in on- and off-road applications.

See the Product Data Bulletin for full details.

MAXIMUM ENGINE PROTECTION

  • Delivers 6X more wear protection,1 delivering extra protection so you can push your diesel with peace of mind
  • Provides long-lasting wear protection, keeping cylinder liners looking like new2
  • Delivers up to 60 percent better turbo cleanliness3
  • Withstands the extra demands you place on the turbo when pulling heavy loads or updating the tune for maximum horsepower
  • Provides up to 2X better rust protection4

1Based on third-party testing in the Detroit Diesel DD13 Scuffing Test for specification DFS 93K222 using 5W-30 as worst-case representation
2Based on independent testing of AMSOIL 5W-30 Signature Series Max-Duty Synthetic Diesel Oil and a leading conventional 15W-40 diesel oil using the Detroit Diesel* DD13 Scuffing test for specification DFS 93K222.
3Based on specification standards of CAT C13 2nd Ring Top Land Carbon testing
4Based on industry standard testing using the NMMA FC-W Rust Test.


Delivers More Wear Protection

Third-party testing shows Signature Series Max-Duty Synthetic Diesel Oil delivers 6X more protection against wear than required by Detroit Diesel’s* standard.II

IIBased on third-party testing in the Detroit Diesel DD13 Scuffing Test for specification DFS 93K222 using 5W-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.


AMSOIL Fights Wear

AMSOIL delivers powerful engine protection. How good is it? In third-party testing compared to a leading brand, AMSOIL provided long-lasting wear protection, keeping cylinder liners looking like new.DD

AMSOIL Fights Wear – AMSOIL delivers powerful engine protection. How good is it? In third-party testing compared to a leading brand, AMSOIL provided long-lasting wear protection, keeping cylinder liners looking like new.

DDBased on third-party testing of AMSOIL 5W-30 Signature Series Max-Duty Synthetic Diesel Oil and a leading conventional 15W-40 diesel oil using the Detroit Diesel* DD13 Scuffing test for specification DFS 93K222.
*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.


Keeps Turbos Clean

AMSOIL Signature Series Max-Duty Synthetic Diesel Oil provides protection boosted to the max, delivering up to 60% better turbo cleanlinessJ and withstanding the extra demands you place on the turbo when pulling heavy loads or updating the tune for maximum horsepower.

JBased on specification standards of CAT C13 2nd Ring Top Land Carbon testing


Protects Against Rust

Provides up to 2X better rust protection.K Protects Against Rust – Provides up to 2X better rust protection.

KBased on industry standard testing using the NMMA FC-W Rust Test.


VISCOSITY CONTROL

  • Resists oxidation and the thickening effects of soot contamination
  • Retains viscosity after high-temperature service for maximum engine protection and efficiency
  • Provides up to 76 percent less oil consumption5

5Than required by the API CK-4 standard in the Caterpillar-1N oil consumption test


Reduces Oil Consumption

Signature Series Max-Duty Synthetic Diesel Oil provides up to 76% less oil consumption.L

Reduces Oil Consumption – Signature Series Max-Duty Synthetic Diesel Oil provides up to 76% less oil consumption.

LThan 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
  • Resists thermal (heat) breakdown better than conventional and competing synthetic diesel oils.
  • Stays fluid in sub-zero temperatures for easier starting, improved oil flow and reduced wear.

See the Product Data Bulletin for full details.

Signature Series Max-Duty Synthetic Diesel Oil 5W-30



Signature Series Max-Duty Synthetic Diesel Oil 5W-30

  • 5 star rating
    Best wear protection capability
    By  PAUL,  a  Verified Buyer  from  Salem, VA  on  June 16, 2022
    The signature series 5w-30 diesel oil for the newer dodge rams are the very best oil you can purchase. This oil has a wear protection capability of 105,000 psi. The best oil 540ratblog has tested for our Cummins engines. Google 540rats blog with 1 million views and learn more about engine oils. Xpensive oil but worth it! I change my oil once per year or at 7500 miles, I am running a bypass lower micron oil filter kit in addition.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    2w30
    By  JIM,  a  Verified Buyer  on  May 12, 2022
    Lower oil temperature and pressure
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Great service
    By  DOUGLAS,  a  Verified Buyer  from  Sunrise  on  April 15, 2022
    Only oil I use in my fuso diesel truck. Delivered to my door fast
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Diesel Oil Review
    By  Hank,  a  Verified Buyer  from  NJ  on  February 08, 2022
    Amsoil diesel oil is the only oil ever used in my 35 year old Kubota L2850 4WD tractor. All other fluids have been Amsoil as well and changed per user manual specifications. With 2500 hours on the clock this hard working tractor has never skipped a beat. No smoke. No problems. What else is there?
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great product Fast shipping
    By  JAIME,  a  Verified Buyer  on  January 16, 2022
    Since i bought my new truck i used this oil and is so amazing . Also the shipping is fast as f….. never problem with them . All in order and clear .
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    My Tractor Loves it
    By  Murffer,  a  Verified Buyer  from  White Mountains , NH  on  January 03, 2022
    My Kioti. cK35 hat is 8 years old and after it’s breaking period all I’ve used is Signature Series Diesel oil . It’s starts like it’s summer time even when the temp is zero . I’ve been using Amsoil in all my vehicles,including motorcycle, lawn equipment , side by side , truck , etc since 1979
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 4 star rating
    Only Oil I Will Use
    By  John,  a  Verified Buyer  from  OK  on  December 29, 2021
    I use Amsoil in all my vehicles, truck, boat, side by side Mules for well over 10 years and so far have never had any issues.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Diesel oil gets dirty very fast.
    By  ROB,  a  Verified Buyer  from  Nova Scotia Canada  on  December 26, 2021
    Because diesels are very hard on todays oil with huge amounts of soot buildup in a very short time, I want the best oil available for my diesel. That’s why I use only Amsoil max duty.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Great for gas vehicles too
    By  Rix,  a  Verified Buyer  from  Northern Nevada  on  December 10, 2021
    Great oil for gas work trucks, I like the fact that I can go 15000 miles between oil changes, and thats driving part time in the dirt. The additives in this oil seem to help with cold starts when the oil has 5k or more miles.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Best Oil For Diesel
    By  JONATHAN,  a  Verified Buyer  on  November 23, 2021
    I use this in a 2012 vw golf tdi and it has never ran better.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?