About this item

• Product Overview

  Product Code : SBDTTP-EA

  • Greater than 50% synthetic content delivers upgraded protection
  • Delivers 2X more wear protection¹
  • Helps keep trucks and equipment operating at peak performance
  • Excels in temperature extremes
  • Provides outstanding value and excellent protection for customers seeking an upgrade over other synthetic-blend and conventional diesel oils

  ¹Based on third-party testing in the Detroit Diesel DD13 Scuffing Test for specification DFS 93K222

  PRODUCT OVERVIEW

  • 10W-30 Commercial-Grade Diesel Oil
  • Advanced synthetic-blend diesel oil with greater than 50% synthetic content. Meets or exceeds original equipment manufacturer requirements in both on- and off-road applications.

  See the product data sheet for full details.

  HEAVY-DUTY ENGINE PROTECTION

   

  • Delivers 2X 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

  Delivers More Wear Protection
  Third-party testing shows Commercial-Grade Diesel Oil delivers 2X 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. *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

   

  • Formulated with greater than 50% synthetic content to minimize viscosity change
  • Keeps soot particles suspended independently, helping prevent formation of larger, wear-causing particles
  • Minimizes oil consumption

  EXCELS IN EXTREME TEMPERATURES

   

  • Formulated to deliver improved heat and oxidation resistance compared to other synthetic-blend and conventional diesel oils
  • Provides clean engine operation and helps maintain power and fuel efficiency
  • Flows dependably in cold temperatures for reliable startup and engine protection

  See the product data sheet for full details.

• Technical Specifications
  Data Bulletin

  Data Bulletins

  Literature Sample

  AMSOIL Diesel Oil Comparison Chart

  SDS

  SDS

  
  
  
• Product Reviews
  4.9 star rating

  Based on 9 reviews

  Based on 9 reviews

  See all customer reviews

  Sort by

  Most Recent Most Helpful Highest Rating Lowest Rating Oldest

  • 5 star rating
    Its amsoil
    By  JOSEPH,  a  Verified Buyer  on  December 15, 2025

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    Doesn't really get any better than amsoil, been running the product for years in all of my modified vehicles front to back with no issues. The price of this 15w40 is on point as well.
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (0)
  • 5 star rating
    It’s a synthetic blend but …
    By  PAUL H.,  a  Verified Buyer  from  Joplin, MO  on  June 30, 2025

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    It’s a synthetic blend but it’s a higher content blend than the rest. All my company trucks run it and it seems to working out great for all of them. Better fuel mileage and better engine temperatures!
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (3) NO (0)
  • 5 star rating
    My 6.0 loves it
    By  STEVEN,  a  Verified Buyer  on  June 07, 2025

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    Run this in my 2006 6.0 power stroke. Seems to be a better alternative to the OEM oil. Engine runs quieter and starts better. Zero injector issues.
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (2) NO (0)
  • 5 star rating
    Awesome
    By  JAMES,  a  Verified Buyer  on  May 27, 2025

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    Great product and fast delivery. Awesome price.
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (1) NO (0)
  • 5 star rating
    Best oil
    By  ROMAN,  a  Verified Buyer  from  Naples FL  on  May 17, 2025

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    15W40 Commercial Grade diesel oil Best oil for my Cummins ISX 2008 1.650.000 miles Change every 12.000-15.000 mil
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (4) NO (0)
  • 5 star rating
    Peace of mind using this oil
    By  GARY,  a  Verified Buyer  from  Alabama  on  June 25, 2024

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    Great oil
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (1) NO (0)
  • 5 star rating
    Beast Semi Truck Oil
    By  Mark,  a  Verified Buyer  from  Nazareth   on  May 27, 2024

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    Should’ve done this before if i love my truck! This is the best choice for my Kenworth T660, runs super nice, and no more garbage oil, or cheap oil on that expensive engine. Recommend 1000%
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (4) NO (0)
  • 5 star rating
    Endurance
    By  KEVIN,  a  Verified Buyer  from  Us East Coast   on  March 03, 2024

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    I’ve been using AMSOIL 15W-40 exclusively in my Westerbeke genset and Cummins 6BT5.9 for 18 years now. At every fluid change the analysis from Blackstone comes back with excellent results. AMSOIL is my engine fluids supplier…period!
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (4) NO (0)
  • 4 star rating
    Good oil
    By  CHIP,  a  Verified Buyer  from  Missouri   on  January 13, 2024

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    The world works good for not being a full synthetic period I like it because the burnout rate is a lot less.
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (5) NO (0)

• Highlights

  • Delivers 2X more wear protection¹
  • Contains greater than 50% synthetic base oil
  • Provides excellent protection for an outstanding value
  • Offers an upgrade over conventional diesel oil

  ¹Based on third-party testing in the Detroit Diesel DD13 Scuffing Test for specification DFS 93K222

• Returns

  We offer easy returns for customers. If your product is unused and unopened, you may return it within 30 days for a full refund of the purchase price. View full AMSOIL Return Policy.

• Payments

  We accept Visa, Mastercard, American Express, Discover and PayPal, and provide secure checkout and encrypted payment processing.

• Product Overview

  Product Code : SBDTTP-EA

  • Greater than 50% synthetic content delivers upgraded protection
  • Delivers 2X more wear protection¹
  • Helps keep trucks and equipment operating at peak performance
  • Excels in temperature extremes
  • Provides outstanding value and excellent protection for customers seeking an upgrade over other synthetic-blend and conventional diesel oils

  ¹Based on third-party testing in the Detroit Diesel DD13 Scuffing Test for specification DFS 93K222

  PRODUCT OVERVIEW

  • 10W-30 Commercial-Grade Diesel Oil
  • Advanced synthetic-blend diesel oil with greater than 50% synthetic content. Meets or exceeds original equipment manufacturer requirements in both on- and off-road applications.

  See the product data sheet for full details.

  HEAVY-DUTY ENGINE PROTECTION

   

  • Delivers 2X 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

  Delivers More Wear Protection
  Third-party testing shows Commercial-Grade Diesel Oil delivers 2X 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. *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

   

  • Formulated with greater than 50% synthetic content to minimize viscosity change
  • Keeps soot particles suspended independently, helping prevent formation of larger, wear-causing particles
  • Minimizes oil consumption

  EXCELS IN EXTREME TEMPERATURES

   

  • Formulated to deliver improved heat and oxidation resistance compared to other synthetic-blend and conventional diesel oils
  • Provides clean engine operation and helps maintain power and fuel efficiency
  • Flows dependably in cold temperatures for reliable startup and engine protection

  See the product data sheet for full details.

• Technical Specifications
  Data Bulletin

  Data Bulletins

  Literature Sample

  AMSOIL Diesel Oil Comparison Chart

  SDS

  SDS

  
  
  
• Product Reviews
  4.9 star rating

  Based on 9 reviews

  Based on 9 reviews

  See all customer reviews

  Sort by

  Most Recent Most Helpful Highest Rating Lowest Rating Oldest

  • 5 star rating
    Its amsoil
    By  JOSEPH,  a  Verified Buyer  on  December 15, 2025

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    Doesn't really get any better than amsoil, been running the product for years in all of my modified vehicles front to back with no issues. The price of this 15w40 is on point as well.
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (0)
  • 5 star rating
    It’s a synthetic blend but …
    By  PAUL H.,  a  Verified Buyer  from  Joplin, MO  on  June 30, 2025

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    It’s a synthetic blend but it’s a higher content blend than the rest. All my company trucks run it and it seems to working out great for all of them. Better fuel mileage and better engine temperatures!
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (3) NO (0)
  • 5 star rating
    My 6.0 loves it
    By  STEVEN,  a  Verified Buyer  on  June 07, 2025

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    Run this in my 2006 6.0 power stroke. Seems to be a better alternative to the OEM oil. Engine runs quieter and starts better. Zero injector issues.
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (2) NO (0)
  • 5 star rating
    Awesome
    By  JAMES,  a  Verified Buyer  on  May 27, 2025

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    Great product and fast delivery. Awesome price.
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (1) NO (0)
  • 5 star rating
    Best oil
    By  ROMAN,  a  Verified Buyer  from  Naples FL  on  May 17, 2025

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    15W40 Commercial Grade diesel oil Best oil for my Cummins ISX 2008 1.650.000 miles Change every 12.000-15.000 mil
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (4) NO (0)
  • 5 star rating
    Peace of mind using this oil
    By  GARY,  a  Verified Buyer  from  Alabama  on  June 25, 2024

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    Great oil
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (1) NO (0)
  • 5 star rating
    Beast Semi Truck Oil
    By  Mark,  a  Verified Buyer  from  Nazareth   on  May 27, 2024

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    Should’ve done this before if i love my truck! This is the best choice for my Kenworth T660, runs super nice, and no more garbage oil, or cheap oil on that expensive engine. Recommend 1000%
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (4) NO (0)
  • 5 star rating
    Endurance
    By  KEVIN,  a  Verified Buyer  from  Us East Coast   on  March 03, 2024

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    I’ve been using AMSOIL 15W-40 exclusively in my Westerbeke genset and Cummins 6BT5.9 for 18 years now. At every fluid change the analysis from Blackstone comes back with excellent results. AMSOIL is my engine fluids supplier…period!
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (4) NO (0)
  • 4 star rating
    Good oil
    By  CHIP,  a  Verified Buyer  from  Missouri   on  January 13, 2024

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    The world works good for not being a full synthetic period I like it because the burnout rate is a lot less.
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (5) NO (0)