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Premium 15W-40 Synthetic Diesel OilHelp

Superior Shear Stability and Extended Drain Intervals in Ultra-Low Emission Diesel Engines

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$11.10 Retail Price (USD)
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Product Code: DMEQT-EA
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The premium choice diesel oil for model-year 2007 and newer heavy-duty and pickup truck diesel engines requiring API CJ-4 emission-quality oil standards. Delivers extraordinary lubrication in diesel engines in commercial, fleet and personal applications. Exceeds modern specs for emission-quality diesel oil.

PRODUCT DESCRIPTION
AMSOIL 15W-40 Synthetic Diesel Oil is the premium choice for API CJ-4 emission-quality diesel oil required by model-year 2007 and newer diesel engines, as well as older diesel applications (including those equipped with turbochargers). It delivers extraordinary lubrication in diesel engines found in commercial, fleet and personal vehicles. Formulated with the latest additive and synthetic base oil technology, AMSOIL Premium 15W-40 Synthetic Diesel Oil exceeds the higher performance demands of modern engines. It withstands the stress of heat, soot and acids to help prevent deposits, corrosion and wear.

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.

Meets Emission System Requirements
AMSOIL 15W-40 Synthetic Diesel Oil is a low-sulfated ash formulation that meets the requirements for low-emission quality diesel oil and protects under the most severe conditions found in modern diesel engines. It is compatible with all exhaust treatment devices and is designed for engines equipped with diesel particulate filters (DPF).

Extended Drain Performance
AMSOIL Premium 15W-40 Synthetic Diesel Oil can extend drain intervals far beyond those recommended for conventional petroleum oils. Its unique synthetic formulation and long-drain additive system (10.4 TBN) deliver superior engine protection, cleanliness and performance over extended drain intervals. AMSOIL 15W-40 Synthetic Diesel Oil provides maximum protection for up to 3X the OEM-recommended drain interval, even further with oil analysis.

Controls Soot-Thickening and Wear
The advanced synthetic base oils in AMSOIL 15W-40 Synthetic Diesel Oil are naturally resistant to soot contamination and oxidative thickening. That, along with a heavy fortification of detergent/dispersant additives, keeps soot particles suspended independently, helping prevent the formation of larger, wear-causing particles. Viscosity increase is minimized and soot-related wear is controlled.

Superior Shear Stability, Reduced Oil Consumption
AMSOIL 15W-40 Synthetic Diesel Oil has lower volatility (burn-off) than conventional petroleum oils, resulting in less oil vapor passing into the combustion chamber, lowering oil consumption and emissions. Lower volatility helps AMSOIL Premium Synthetic Diesel Oil retain its viscosity after high-temperature service for continued dependable protection.

Ideal for Fleets
AMSOIL Premium 15W-40 Diesel Oil reduces operating costs through extended drain intervals. It is engineered for a wide range of applications, allowing fleet operators to consolidate engine oil inventories in mixed fleets. In addition, it reduces downtime through extended drain intervals and improved equipment protection.

AMSOIL 15W-40 Diesel Oil
costs less per mile than conventional oil
Fleet Savings vs. Conventional 15W-40
Total Lubricant Used
Cost Per Gallon
Total Lubricant Cost x1 Truck
Total Lubricant Cost x50 Trucks
Conventional 15W-40
8 gal x12=96 gal
$17.09
$1,641
$82,032
AMSOIL Synthetic 15W-40
8 gal x4=32 gal
$38.70
$1,238
$61,920
Total Savings With AMSOIL
$403
$20,112
Based on 120,000 miles per year with an OEM-recommended drain interval of 10,000 miles. Does not include labor, filter, or used oil disposal costs, making AMSOIL even more cost effective. Pricing samples are average suggested retail, October/November 2014.

APPLICATIONS
AMSOIL Premium CJ-4 Synthetic 15W-40 Diesel Oil is recommended for diesel engines and, where appropriate, gasoline engines requiring any of the following specifications:

  • SAE 15W-40
  • API CJ-4, CI-4+, CF, SM, SN
  • ACEA E7, E9
  • Mack EO-O
  • DDC 93K218
  • Caterpillar ECF-3, ECF-2, ECF-1a
  • Cummins CES 20081
  • Volvo VDS-4, VDS-3
  • MB 228.31
  • MS10902
  • MTU Type I, II & 2.1
  • MAN 3275, 3575
  • JASO DH-2
  • Global DHD-1
  • Renault RLD-3

COMPATIBILITY
AMSOIL 15W-40 Synthetic Diesel Oil is compatible with conventional and synthetic motor oils. Mixing AMSOIL motor oils with other oils, however, will shorten the oil 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 Premium CJ-4 15W-40 Synthetic Diesel Oil is recommended for extended drain intervals in engines that are unmodified and in good operating condition.

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.
  • 2007-2009 Caterpillar C13 and C15 on-highway engines must follow OEM-recommended drain interval.
  • 2007-Present Dodge, Ford and GM LMM light-duty diesel pickups must follow OEM-recommended drain interval. Drain intervals may be extended 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 normal and severe 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.

 

DME Package Sizes
Code Package Size Unit of Measure Product
DMEQT (DMEQT-EA) Quart Each Premium 15W-40 Synthetic Diesel Oil
DMEQT (DMEQT-CA) Quart Case of 12 Premium 15W-40 Synthetic Diesel Oil
DME1G (DME1G-EA) Gallon Each Premium 15W-40 Synthetic Diesel Oil
DME1G (DME1G-CA) Gallon Case of 4 Premium 15W-40 Synthetic Diesel Oil
DMETP (DMETP-EA) 2.5-Gallon Each Premium 15W-40 Synthetic Diesel Oil
DMETP (DMETP-CA) 2.5-Gallon Case of 2 Premium 15W-40 Synthetic Diesel Oil
DME30 (DME30-EA) 30-Gallon Drum Each Premium 15W-40 Synthetic Diesel Oil
DME55 (DME55-EA) 55-Gallon Drum Each Premium 15W-40 Synthetic Diesel Oil
DME27 (DME27-EA) 275-Gallon Tote Each Premium 15W-40 Synthetic Diesel Oil
More about AMSOIL Reviews

REVIEW SNAPSHOT®

by PowerReviews
AMSOILPremium 5W-40 Synthetic Diesel Oil
 
4.8

(based on 50 reviews)

Ratings Distribution

  • 5 Stars

     

    (43)

  • 4 Stars

     

    (6)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

97%

of respondents would recommend this to a friend.

Most Liked Positive Review

 

The best oil out there!

I use Amsoil in my 2015 F-250. This oil holds up under the stresses that come with running 11 hrs. a day 5 days a week in commercial use. My 2015 already...Read complete review

I use Amsoil in my 2015 F-250. This oil holds up under the stresses that come with running 11 hrs. a day 5 days a week in commercial use. My 2015 already has 155k miles on it thanks to Amsoil, without any engine problems. I have tried other oils, even Royal Purple Duralec, but none compare to the 15-40's strengths when under the high temperatures of Summer in the south and the cold temperatures of the north in Winter.

VS

Most Liked Negative Review

 

Not worth the cost in my opinion

Can't say I had any issue in my 2014 Duramax but for the cost I will be buying something else. I just cant stand lettingmy truck go 10k++ miles on a single oil...Read complete review

Can't say I had any issue in my 2014 Duramax but for the cost I will be buying something else. I just cant stand lettingmy truck go 10k++ miles on a single oil change but that's just me.

Reviewed by 50 customers

Displaying reviews 1-10

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5.0

Yes

By 

from Chino calif

Verified Buyer

Comments about Premium 15W-40 Synthetic Diesel Oil:

I noticed I get a better fuel gas mileage

  • How would you describe yourself?:
  • I love my vehicles / toys
  • What kind of vehicle/equipment do you have?:
  • 14 freightliner Cascadia DD15

(1 of 1 customers found this review helpful)

 
5.0

Love it

By 

from Usa

Verified Buyer

Comments about Premium 5W-40 Synthetic Diesel Oil:

Cold start 2016 cummins. -23. No problem. Amazing in cold temps.

  • How would you describe yourself?:
  • I'm a DIY handyman
  • What kind of vehicle/equipment do you have?:
  • 6.7 cummins

(2 of 2 customers found this review helpful)

 
5.0

12 years and counting

By 

from undisclosed

Verified Buyer

Comments about Premium 15W-40 Synthetic Diesel Oil:

I have been running this oil for over 12 years on my F350 7.3L Diesel. Still running strong.

 
5.0

Only the BEST for Me

By 

from undisclosed

Verified Buyer

Comments about Premium 5W-40 Synthetic Diesel Oil:

I have been using Amsoil since 1979 and I believe in putting the Best Oil in all my Toys . I use it in my cars,garden tractor , lawn mower , whole house generator , power washer , and my 2 Corvettes ,and in my 2013 Kioti CK35 HST Diesel tractor . I guess you could call me an Amsoil Junkie

 
5.0

Loyal customer

By 

from undisclosed

Verified Buyer

Comments about Premium 5W-40 Synthetic Diesel Oil:

I just changed the oil in my 2015 with Amsoil for the first time, because the truck came with 2 years of maintenance when bought new, and if you didn't use it your just wasting money.i am a firm believer in Diesel injector clean, I'm on my second Duramax and have never had a fuel related problem. I'll use Amsoil forever.
Thanks for great products.

 
5.0

I will continue to use Amsoil in all my vehicles.

By 

from undisclosed

Verified Buyer

Comments about Premium 15W-40 Synthetic Diesel Oil:

Always quality. I run this in my 2009 Ram 6.7 Cummins. Been running nothing but Amsoil since I bought it in 2010 and no issues.
I also use Amsoil Signature 5w30 in my hotrods too. I have a 1967 Chevelle SS with Chevrolet crate 502 as well as a 2013 Camaro SS 1LE
I never worry about oil related issues with Amsoil.

 
5.0

5 years and counting

By 

from undisclosed

Verified Buyer

Comments about Premium 15W-40 Synthetic Diesel Oil:

I have used this product in my 05 Dodge 2500 for over 5 years and hasn't let me down. Great protection and good in the could mouths with could starting

 
4.0

Works good in cold weather.

By 

from undisclosed

Verified Buyer

Comments about Premium 5W-40 Synthetic Diesel Oil:

08 Duramax 250k miles and still going strong. -30 here in winter, starts up with good oil pressure no waiting on the pressure gauge to pick up cold oil.

 
5.0

I change my own oil - have for 30 years. Always Amsoil.

By 

from undisclosed

Verified Buyer

Comments about Premium 5W-40 Synthetic Diesel Oil:

When Amsoil produced a oil meeting Chrysler's requirements (2015 Jeep GC 3.0 Diesel) I jumped on it as I have always had good experience with Amsoil oil.

 
5.0

Best oil for my Cummins,

By 

from undisclosed

Verified Buyer

Comments about Premium 5W-40 Synthetic Diesel Oil:

Only product I use. The BEST!

I use it with AMSOIL FF and bypass filters.

Displaying reviews 1-10

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