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

SAE 15W-40 Heavy-Duty Diesel and Marine Oil Product Image
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$10.40 Retail Price (USD)
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Product Code: AMEQT-EA
Product Highlights View Full Description

Engineered for pre-2007 diesel engines in on-road applications as well as all model year diesel engines in off-road applications. High 12 TBN controls acids from combustion blow-by and EGR. Additives control soot thickening, oxidation and wear. Extended drain capabilities reduce downtime and motor oil expenses.

AMSOIL Synthetic Heavy Duty Diesel & Marine Motor Oil is a premium diesel oil that provides excellent performance in all types of diesel engines where highly effective control of wear and deposits is vital. Engineered with heavy-duty dispersant/detergent additives, its Total Base Number (TBN) of 12 neutralizes acids and controls soot thickening from exhaust gas recirculation (EGR) and blow-by to protect against corrosion, cylinder bore polishing (wear), varnish and sludge deposits. AMSOIL 15W-40 Diesel Oil resists heat and breakdown better than conventional petroleum oils for long-lasting performance and protection.

AMSOIL, the leader in automotive synthetic lubrication, produced the world’s first API qualified synthetic motor oil in 1972. Trust the extensive experience of AMSOIL The First in Synthetics® to do the best job protecting your engine.

Extends Drain Intervals
AMSOIL Synthetic Heavy Duty Diesel & Marine Motor Oil can extend drain intervals far beyond those recommended for conventional petroleum oils. Its unique synthetic formulation and long-drain additive chemistry deliver maximum engine protection, cleanliness and performance over extended drain intervals, reducing vehicle maintenance and waste-oil disposal costs.

Controls Soot and Wear
AMSOIL Synthetic Heavy Duty Diesel & Marine Motor Oil is heavily fortified with detergent/dispersant additives and is naturally resistant to soot. It is designed to keep soot particles suspended independently and prevent them from aggregating to form larger, wear-causing particles. Viscosity increase is minimized and soot-related wear is reduced.

Reduces Oil Consumption and Emissions
AMSOIL Synthetic Heavy Duty Diesel & Marine Motor Oil has lower volatility than conventional petroleum oils. Oil consumption and emissions are minimized due to less vapor passing into the combustion chamber. Lower volatility helps AMSOIL 15W-40 Diesel Oil retain its viscosity after high-temperature service for continued dependable protection.

Excellent Cold-Flow Properties
AMSOIL Synthetic Heavy Duty Diesel & Marine Motor Oil eases cold-weather starting (down to -44°F) and provides vital startup lubrication to help prevent engine wear. AMSOIL Synthetic Heavy Duty Diesel Oil outperforms conventional 15W-40 petroleum oils and minimizes the impact of cold-weather operation.

APPLICATIONS
AMSOIL Synthetic Heavy Duty Diesel & Marine Motor Oil is engineered for use in a wide variety of light- and heavy-duty applications, including over-the-road trucks, off-road construction, marine engines, farm equipment, mining, industrial (pumps & generators) and personal automotive or commercial transportation. It is excellent for use with low- or high-sulfur diesel fuels in standard, turbocharged or supercharged engines, including diesels equipped with EGR systems.

AMSOIL Synthetic Heavy Duty Diesel & Marine Motor Oil is recommended for diesel engines, gasoline engines and other applications that require any of the following specifications:

  • SAE 15W-40
  • API CI-4+/CI-4/CH-4/CF/CF-2/SL/SJ
  • ACEA A3/B3, E2, E3, E5, E7
  • Global DHD-1
  • JASO DH-1
  • Mack EO-M, EO-N
  • DDC 93K214
  • Caterpillar ECF-1A, ECF-2
  • Cummins CES 20076, 20077, 20078
  • Volvo VDS-2, VDS-3
  • MB 228.1, 228.3, 229.1
  • MAN 271, 3275
  • MTU Type II

COMPATIBILITY
AMSOIL Synthetic Heavy Duty Diesel & Marine Oil is compatible with conventional and synthetic motor oils. Mixing AMSOIL motor oils with other oil, however, will shorten the oil's life expectancy and reduce the performance benefits.

AMSOIL does not support extended drain intervals where oils have been mixed.

Aftermarket oil additives are not recommended for use with AMSOIL motor oils.

SERVICE LIFE
AMSOIL Synthetic Heavy Duty Diesel and Marine Motor Oil is recommended for extended drain intervals in unmodified, mechanically-sound vehicles or equipment as follows:

Diesel Engine Service
Three times (3X) OEM* recommendation, not to exceed 50,000 miles/600 hours or one year, whichever comes first. Drain intervals may be extended further with oil analysis.

Gasoline Engine Service
Two times (2X) OEM* recommendation, not to exceed 15,000 miles or one year, whichever comes first.

*Operating conditions and drain intervals for severe and normal service are defined by the OEM. Refer to your owner’s manual.

Note: Extended drain intervals are not recommended when using biofuels containing >10% ethanol or 5% biodiesel (B5). Follow OEM drain intervals or extend drain intervals with oil analysis.

HEALTH & SAFETY
This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Material Safety Data Sheet (MSDS). An MSDS is available via the Internet at www.amsoil.com or upon request at (715) 392-7101. Keep Out of Reach of Children. Don’t pollute. Return used oil to collection centers.

For warranty information, visit www.amsoil.com/warranty.aspx.


AME Package Sizes
Code Package Size Unit of Measure Product
AMEQT (AMEQT-EA) Quart Each SAE 15W-40 Heavy-Duty Diesel and Marine Oil
AMEQT (AMEQT-CA) Quart Case of 12 SAE 15W-40 Heavy-Duty Diesel and Marine Oil
AME1G (AME1G-EA) Gallon Each SAE 15W-40 Heavy-Duty Diesel and Marine Oil
AME1G (AME1G-CA) Gallon Case of 4 SAE 15W-40 Heavy-Duty Diesel and Marine Oil
AMETP (AMETP-EA) 2.5-Gallon Each SAE 15W-40 Heavy-Duty Diesel and Marine Oil
AMETP (AMETP-CA) 2.5-Gallon Case of 2 SAE 15W-40 Heavy-Duty Diesel and Marine Oil
AME30 (AME30-EA) 30-Gallon Drum Each SAE 15W-40 Heavy-Duty Diesel and Marine Oil
AME55 (AME55-EA) 55-Gallon Drum Each SAE 15W-40 Heavy-Duty Diesel and Marine Oil
AME27 (AME27-EA) 275-Gallon Tote Each SAE 15W-40 Heavy-Duty Diesel and Marine Oil
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by PowerReviews
AMSOILSAE 15W-40 Heavy-Duty Diesel and Marine Oil
 
5.0

(based on 50 reviews)

Ratings Distribution

  • 5 Stars

     

    (49)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Reviewed by 50 customers

Displaying reviews 1-10

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5.0

Like the price and quality

By 

from Upand CA

Verified Buyer

Comments about 10W-30/SAE 30 Synthetic Heavy-Duty Diesel Oil:

The Viscosity works well in my 41 year old 500 CI Cad motor. Has enough phosphorus for my lifters.
I also can use it in my mower that requires a straight 30 wt.
Been using this for the last 10 years and I am very pleased with the results. Zrod would also be a
good choice, but this has a higher base number...

  • How would you describe yourself?:
  • I'm a DIY handyman
  • What kind of vehicle/equipment do you have?:
  • 1975 Cadillac sedan deville
 
5.0

Will buy again and again

By 

from Washington state

Verified Buyer

Pros

  • High quality product, great shipping,

Cons

    Best Uses

    • Cummins diesel powered vehicles

    Comments about SAE 15W-40 Heavy-Duty Diesel and Marine Oil:

    Great product to keep your engine running at it's peak performance. Used it in my 2006 Dodge Ram 2500 for 152,000 miles. Plan to use in my new Ram 2500.

    • How would you describe yourself?:
    • I'm a DIY handyman
     
    5.0

    The perfect oil for our 6.0 Powerstroke, and for yours also

    By 

    from New England

    Verified Buyer

    Comments about 10W-30/SAE 30 Synthetic Heavy-Duty Diesel Oil:

    Our 6.0 diesel is in a Ford E450, 2006 cutaway-motorhome, mileage just over 130K-we purchased the rv new. As the chassis is just about 3,000lbs from being maxed out I do change oil more frequently than the recommended 5k miles and went to full synthetic at about 1,000 miles-my change interval is just about 4,000 miles give or take.
    For the first year I used either two of the big names in diesel oil and had to top off with between 1 to 1 1/2 qts between changes. Tried Amsoil after seeing cases and cases of it at an engine builder that I was sent to for a service call.
    I started with AME 15-40 Heavy Duty Diesel/Marine and Amsoil got my attention when I began to realize that I was NOT adding oil between changes. After two years or so I decided to try ACD 10/30 30 Heavy Duty Diesel and was amazed at the quicker starts and the very different sound of the engine BUT I will admit to being somewhat concerned with the lighter oil when summer arrived. The hot weather arrived well ahead of schedule and while I did not have to add oil one thing did change , I was getting just under 2mpg better with ACD oil.
    And I know what some are thinking because it was the way I was thinking-the engine was getting broken in and this explained everything; so I switched back to one of the others and I switched back to adding oil and loosing the extra mpgs- I changed back to Amsoil and the engine changed for the better. I have done this four times and each and every time the improvements came back when Amsoil came back-nothing else was different but the engine oil.
    Become a preferred customer and total cost should be in line with what you are paying now.
    Regardless of what diesel engine is shaking your truck give Amsoil a try-it made a huge difference for me and it will for you also I am convinced of this.

    • Was this a gift?:
    • No
    • How would you describe yourself?:
    • I love my vehicles / toys
    • What kind of vehicle/equipment do you have?:
    • VW TDI-diesel generator-skid steer-
     
    5.0

    Series 3000 5W-30 for the 6.0 Powerstroke engine

    By 

    from Leonardtown, MD

    Verified Buyer

    Comments about Series 3000 5W-30 Synthetic Heavy Duty Diesel Oil:

    I have experienced quite a few problems with the 6.0 Powerstroke engines and I can say that my 6.0 runs like a top after switching to this oil. As far as I am concerned this is the only oil that I will ever put back into this machine - it has made a noticeable difference, especially in cold weather. I was skeptical at first but this oil was made with the 6.0 in mind. The standard 15w-40 oils tend to get sheared down by the High Pressure Oil Pump meaning they are 15W-40 when you put it in the engine but it is not 15W-40 when it comes back out. Where the Series 3000 oil goes in at 5W-30 and comes out at 5W-30.

    • How would you describe yourself?:
    • I'm a full-on gearhead
     
    5.0

    Series 3000 5W-30 Synthetic Heavy Duty Diesel Oil

    By 

    from San Antonio, Tx

    Verified Buyer

    Comments about Series 3000 5W-30 Synthetic Heavy Duty Diesel Oil:

    I have been using this oil for over 5 years now and I would not change for any other brand. Amsoil is easy to work with and they ship fast. Great company.

    • How would you describe yourself?:
    • I'm a DIY handyman
    • What kind of vehicle/equipment do you have?:
    • 2001 Ford F250 diesel
     
    5.0

    180,000 miles with Amsoil series 3000

    By 

    from OSSEO, MN

    Verified Buyer

    Comments about Series 3000 5W-30 Synthetic Heavy Duty Diesel Oil:

    I BOUGHT A USED 2007 DODGE DURANGO LIMITED WITH A 4.5 L GAS ENGINE IN 2007. IT HAD 18,000 MILES ON IT AND NOW HAS 190,000 MILES. I HAVE USED THE SERIES 2000 OIL ITS ENTIRE LIFE, CHANGING EVERY 10,000 MILES. IT DOES NOT USE ANY OIL IN A 10,000 MILE INCREMENT.

    • How would you describe yourself?:
    • I love my vehicles / toys
     
    5.0

    Chevy diesel

    By 

    from Ok

    Verified Buyer

    Comments about Series 3000 5W-30 Synthetic Heavy Duty Diesel Oil:

    I have used this product for years. I keep my vehicles for many years so important to keep wear under control. When my trucks hit 45000 miles I switch to Amsoil 3000 and have gotten longevity on all with no major engine trouble. Never had to plug my vehicles in, in cold weather. And I've had to travel upstate NY in very cold weather.

    • How would you describe yourself?:
    • I use AMSOIL products for my business
    • What kind of vehicle/equipment do you have?:
    • Chevy Diesel trucks

    (1 of 2 customers found this review helpful)

     
    4.0

    Not the highest rating

    By 

    from Wichita, Kansas

    Verified Buyer

    Comments about SAE 15W-40 Heavy-Duty Diesel and Marine Oil:

    My vehicle has 245,000 miles using this product plus others and I am pleased with all of them.
    However, my rating of four stars is because you need to continue to produce quality products, stick to your excellent lab testing, research, upgrades and improvements, while keeping affordable prices. When you think you have accomplished all this I will change my rating to five stars.

    • How would you describe yourself?:
    • I love my vehicles / toys
    • What kind of vehicle/equipment do you have?:
    • 2004 Chevrolet 2500 Duramax
     
    5.0

    Service Intervals greatly reduced

    By 

    from Gardnerville NV

    Verified Buyer

    Comments about SAE 15W-40 Heavy-Duty Diesel and Marine Oil:

    By switching to Amsoil i have seen better gas mileage and i don't have to worry about changing my oil while on the road snowbirding . I just change once a year now and still get better lubrication on my new Ram .

    • How would you describe yourself?:
    • I'm a DIY handyman
    • What kind of vehicle/equipment do you have?:
    • 2015 Ram 3500 Diesil 6.7
     
    5.0

    Awesome Diesel Oil!!!

    By 

    from Chattanooga, TN

    Verified Buyer

    Comments about SAE 15W-40 Heavy-Duty Diesel and Marine Oil:

    Love Amsoil! Use it on my vehicle and all my equipment. #1

    • How would you describe yourself?:
    • I use AMSOIL products for my business
    • What kind of vehicle/equipment do you have?:
    • diesel vehicle, and 4 equipment diesels

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