AMSOIL SAE 15W-40 Heavy-Duty Diesel and Marine Oil
NEW AMSOIL Preferred Customer Program

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

SAE 15W-40 Heavy-Duty Diesel and Marine Oil Product Image
Click image to enlarge
$10.75 Retail Price (USD)
QTY:
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/about/guarantee.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
More about AMSOIL Reviews

REVIEW SNAPSHOT®

by PowerReviews
AMSOILSAE 15W-40 Heavy-Duty Diesel and Marine Oil
 
4.9

(based on 135 reviews)

Ratings Distribution

  • 5 Stars

     

    (128)

  • 4 Stars

     

    (6)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

99%

of respondents would recommend this to a friend.

Most Liked Positive Review

 

Oil that makes engines last a lifetime

I have been running this oil for seven years. I ran it in a fleet of 125 Generators, 25 Loaders, and 40 Kenworth semis. I never once in 3 years had an engine...Read complete review

I have been running this oil for seven years. I ran it in a fleet of 125 Generators, 25 Loaders, and 40 Kenworth semis. I never once in 3 years had an engine failure. These pieces of equipment ran around the clock in the oil fields. Our generators would run 26,000 Hours before we would bring them in for a rebuild. We would take them out of service for a rebuild, the engines never failed. I would reccomend this product to anyone and I would put it against any other oil on the market. I run it in all my personal vehicles and engines. I will be an amsoil customer for life.

VS

Most Liked Negative Review

 

Diesel Oil

My 1996 Ford F-250, 7.3 Powerstroke never leaked oil until I started using this product. Only 137000 miles.
Works well in inboard boat engine.

My 1996 Ford F-250, 7.3 Powerstroke never leaked oil until I started using this product. Only 137000 miles.
Works well in inboard boat engine.

Reviewed by 135 customers

Displaying reviews 1-10

Back to top

Previous | Next »

 
4.0

Pretty good

By 

from Anderson sc

Verified Buyer

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

Put in an 07 duramax fully deleted great
Put In a 13 duramax fully deleted typewriter ticks slightly
Put in a 2015 duramax fully deleted typewriter ticks really bad

  • How would you describe yourself?:
  • I'm a full-on gearhead
  • What kind of vehicle/equipment do you have?:
  • 2007 duramax 2013 duramax 2015 duramax
 
5.0

I have purchased this product since my bought my Dodge trk,

By 

from Winters, CA

Verified Buyer

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

Recommended by a friend, I have purchased this product since I bought my 2004 Dodge Heavy Duty. Still runs great. I run Donaldson oil filter.

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

GREAT product!!

By 

from New Cumberland WV

Verified Buyer

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

This review is based on a van that I no longer have. I used Series 3000 in that van for years... I believe 3 years?? Perhaps 4. At the time that it suffered a rollover and was "totaled", the engine oil pressure (a major indicator of bearing wear) was exactly as high as when the van was new to me.

  • How would you describe yourself?:
  • I'm a DIY handyman
  • What kind of vehicle/equipment do you have?:
  • brother's small backhoe, and...
 
5.0

Amsoil for the big rig

By 

from Waynesboro GA

Verified Buyer

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

I use Amsoil products in all my vehicles

  • How would you describe yourself?:
  • I use AMSOIL products for my business
  • What kind of vehicle/equipment do you have?:
  • Personal vehicles plus class 8 truck
 
5.0

This is a product you can trust

By 

from Greentown, Ind.

Verified Buyer

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

I use this product in my diesel mower. Works great.

  • How would you describe yourself?:
  • I'm a DIY handyman
  • What kind of vehicle/equipment do you have?:
  • 2005 dodge ram 3500 diesel

(2 of 2 customers found this review helpful)

 
5.0

have purchased this product repeatedly

By 

from Springfield,IL

Verified Buyer

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

I use this particular product in both my diesel powered Motor home, and my F350 truck. I used oil testing to determine oil change periods and have saved considerable money over fossil based oils. In addition easier starts, and increased mileage have added to the positive results of the AMSOIL use

  • How would you describe yourself?:
  • I'm a full-on gearhead
  • What kind of vehicle/equipment do you have?:
  • 1997 F350 7.3 l diesel

(2 of 2 customers found this review helpful)

 
5.0

Still using

By 

from Jackson mo

Verified Buyer

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

Been using in 06 chevy 3500 has 253,000 uses a qt, in 25000 miles can't complain !

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

(2 of 2 customers found this review helpful)

 
5.0

Continues to perform the best.

By 

from Colorado

Verified Buyer

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

Been using this for years and have been validated time and time again. This is the best!

  • How would you describe yourself?:
  • I love my vehicles / toys
  • What kind of vehicle/equipment do you have?:
  • Dodge Ram 2500, diesel, 260,000 miles.

(1 of 1 customers found this review helpful)

 
5.0

No oil close to this product

By 

from Bardstown ky

Verified Buyer

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

Run it in both of my duramax trucks one has 260 thousand miles other one Amsoil is all it's ever had both all clean as gold

  • How would you describe yourself?:
  • I love my vehicles / toys
  • What kind of vehicle/equipment do you have?:
  • Trucks tractors other farm equipment

(1 of 1 customers found this review helpful)

 
5.0

I only use Amsoil products

By 

from Cosby,TN

Verified Buyer

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

I use Amsoil 10W30/SAE30 in my Massey Furguson compact diesel tractor. I've used this oil from day one. My tractor was delivered and I drained the oil that day and changed the filter. I do this with everything I own . Amsoil is the best..

  • How would you describe yourself?:
  • I'm a DIY handyman
  • What kind of vehicle/equipment do you have?:
  • Massey Furguson compact diesel tractor.

Displaying reviews 1-10

Back to top

Previous | Next »