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SAE 15W-40 Heavy-Duty Diesel and Marine Oil

Product code : AMEQT-EA

Recommended for applications specifying API CI-4+ and prior specifications
Controls soot and wear
Reduces oil consumption and emissions
Delivers maximum engine protection over extended drain intervals
Provides outstanding protection and performance in temperature extremes
Try Signature Series Max-Duty 15W-40 for a serious upgrade

Recommended for applications specifying API CI-4+ and prior specifications
Controls soot and wear
Reduces oil consumption and emissions
Delivers maximum engine protection over extended drain intervals
Provides outstanding protection and performance in temperature extremes
Try Signature Series Max-Duty 15W-40 for a serious upgrade

SAE 15W-40 Heavy-Duty Diesel and Marine Oil



Premium diesel oil providing excellent performance in diesel engines where highly effective control of wear and deposits is vital. Built with heavy-duty dispersant/detergent additives with 12 TBN, Synthetic Heavy-Duty Diesel & Marine Oil neutralizes acids and controls soot thickening from EGR and blow-by to protect against corrosion, cylinder bore polishing (wear) and varnish/sludge deposits. It resists heat and breakdown and is formulated for extended drain intervals.

See the product data sheet for full details.

CONTROLS SOOT AND WEAR

  • Neutralizes acids and controls soot thickening to protect against corrosion, wear, varnish and sludge deposits
  • Reduces oil consumption and emissions
  • Delivers maximum engine protection over extended drain intervals

EXCELS IN EXTREME TEMPERATURES

  • Provides outstanding protection and performance in temperature extremes
  • Resists heat and breakdown better than conventional oils
  • Eases cold-weather starting and provides vital startup lubrication

 

See the product data sheet for full details.

SAE 15W-40 Heavy-Duty Diesel and Marine Oil



SAE 15W-40 Heavy-Duty Diesel and Marine Oil

  • 5 star rating
    Amsoil Products
    By  KEITH,  a  Verified Buyer  from  Desert southwest  on  August 01, 2022
    I have been using Amsoil products in all my vehicles for almost 20yrs ( diesel truck, harleys, hot rods) without a single oil issue. I recommend these products to everyone.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Long live my Diesel and Amsoil.
    By  Hop,  a  Verified Buyer  from  Index, Washington  on  June 08, 2022
    I’ve owned my 1998.5 Dodge Ram 3500 Dually since 2000 and, although I tried Kendall Super D3 in the beginning, I wasn’t quite pleased with it and the availability of it. So I changed to Amsoil and I have never looked back. I now have 366,000miles on my truck and it still runs smooth as silk with no engine problems whatsoever. I also run Amsoil gear oil in the front end, reared, transmission, and transfer case. I change the oil on an extended mileage plan in conjunction with my mechanic and I simply could NOT be more happy with this product. Combined with an Amsoil Bypass filter system my truck will very probably outlast me!!!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great Oil
    By  JIM,  a  Verified Buyer  from  Sun City, AZ  on  May 24, 2022
    I have used this oil for many years. Changing once a year, approximately 12,000 miles. My truck continues to run like new with 257000 miles on the clock
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 4 star rating
    Liked it way better before the prices went sky high
    By  HERB,  a  Verified Buyer  from  Orlando,fl  on  May 17, 2022
    It use to cost me about the same for 3 gallon oil change as I paid for a five quart one, not so nowadays
    Was this review helpful?
  • 5 star rating
    the only oil for my boat
    By  JOHN,  a  Verified Buyer  from  sunshine coast, BC  on  May 15, 2022
    just had the valve cover off my Cummins Marine 5.9. pristine at 1000 hours. Amsoil products are the only oils in all my power equipment.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    1977 Ford 1600 tractor
    By  PAUL,  a  Verified Buyer  from  clinton, oh  on  April 25, 2022
    So far so good Time will tell
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Great oil for my 2006 DMAX LBZ
    By  RUSS,  a  Verified Buyer  from  South Louisiana   on  April 18, 2022
    Been using this oil since first oil change.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    BEST OIL FOR MY CUMMINS 8.9 DIESEL PUSHER EVER
    By  DAREDEVILLEGEND,  a  Verified Buyer  from  TAMPA BAY AREA, FLORIDA  on  April 17, 2022
    The AMSOIL for my diesel is AMAZING. I would never use anything else. Thank You for such a GREAT Product :-) God Bless Bob
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Diesel engine oil
    By  R.G.,  a  Verified Buyer  on  March 20, 2022
    Love many different Amsoil products. Diesel engine oil works great in my Tractor
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    A Great Synthetic Oil
    By  SHERMAN,  a  Verified Buyer  on  February 16, 2022
    I've been using Amsoil Synthetic Oil for many years and my diesel engines just keeps lasting.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?