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Signature Series Max-Duty Synthetic CK-4 Diesel Oil 15W-40 (DME)

 Signature Series Max-Duty Synthetic CK-4 Diesel Oil 15W-40 (DME)
Product Code: DME • Brand: AMSOIL

Protect your investment in diesel power and confidently extend drain intervals with our top-grade synthetic diesel oil. AMSOIL Signature Series Max-Duty Synthetic Diesel Oil delivers 6X better wear protection than required by the Detroit Diesel DD13 Scuffing Test for Specification DFS 93K222. Advanced synthetic technology provides excellent viscosity control and outstanding extreme-temperature performance, while minimizing oil consumption. The result: protection that's boosted to the max.

Package sizes include:

1-Quart Bottle
1-Gallon Bottle
2.5-Gallon Bottle
30-Gallon Drum
55-Gallon Drum
275-Gallon Tote

See Pricing or Place an Order
MSDS Data Sheet

Product Details

Product Applications

Use in diesel engines and, where appropriate, gasoline engines requiring any of the following specifications:

Product Application Specs

• API CK-4/SN, CJ-4, CI-4+, CF
• Volvo VDS4.5, VDS4, VDS3
• Mack EOS-4.5, EO-O
• Renault RLD-4, RLD-3
• Cummins CES20086, CES20081
• Caterpillar ECF-2, ECF-3, ECF-1-a
• DDC 93K218, 93K215, 93K214
• DFS 93K222
• ACEA E9, E7
• MB 228.31
• MAN 3575
• MTU Type 2.1, II, I
• JASO DH-2
• Deutz DQC III-10LA
• Scania LA-2
• Chrysler MS 10902
• Ford WSS-M2C171-F1

Product Description

Maximum Engine Protection - Wear on rings and cylinder liners leads to increased oil consumption and loss of compression, resulting in reduced horsepower and fuel economy. Independent testing shows AMSOIL Signature Series Max-Duty delivers 6X more wear protection than required by the Detroit Diesel DD13 Scuffing Test for Specification DFS 93K222, delivering the security of providing your diesel the extra protection it deserves.

Viscosity Control

Using top-tier synthetic base oils, AMSOIL Signature Series Max-Duty is naturally resistant to oxidation and the thickening effects of soot contamination. That, along with boosted 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. Lower volatility also helps Signature Series Max-Duty retain its viscosity after high-temperature service for maximum engine protection and efficiency.

Excels in Extreme Temperatures

AMSOIL Signature Series Max-Duty Synthetic Diesel Oil resists thermal (heat) breakdown better than conventional and competing synthetic diesel oils. Unlike conventional oils, Signature Series contains no wax, staying fluid in sub-zero temperatures for easier starting, improved oil flow and reduced wear. Signature Series 0W-40 (DZF) has a broad viscosity range that offers 4X better cold-cranking ability than a 15W-40, making it excellent for use in both hot-operating engines and cold-weather starting extremes.

diesel oil Scuffing Test

Minimizes Oil Consumption

AMSOIL Signature Series Max-Duty has a low rate of volatility (burn-off), reducing oil consumption during operation and passing less oil vapor into the combustion chamber. It provides up to 76 percent less oil consumption than required by the API CK-4 standard in the Caterpillar-1N oil consumption test.

diesel Oil Consumption

COMPATIBILITY

AMSOIL Signature Series Max-Duty Synthetic Diesel Oil is compatible with other conventional and synthetic engine oils. Mixing AMSOIL diesel oils with other oils, 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 synthetic diesel oils.

diesel oil OfficialOil icon

SERVICE LIFE

Diesel Engine Service Life

Heavy-Duty On-/Off-Road: Three times (3X) OEM1 recommendation, not to exceed 60,000 miles/600 hours or one year, whichever comes first.

Turbodiesel Pickup: Two times (2X) OEM1 recommendation, not to exceed 25,000 miles or one year, whichever comes first.

Gasoline Engine Service Life
Two times (2X) OEM1 recommendation, not to exceed 15,000 miles or one year, whichever comes first.

Drain intervals may be extended further with oil analysis.

Refer to your owner's manual for OEM drain interval recommendations and guidelines for severe and normal service.

Note: Extended drain intervals are not recommended for performance-modified engines, when using biofuels containing more than 10 percent ethanol or 15 percent biodiesel (B15) or for 2007-2009 Caterpillar* C13 and C15 on-highway engines. Extend drain intervals beyond OEM recommendations in these instances only with oil analysis. Note: 2007-2010 Dodge**, Ford** and GM** turbodiesel pickups are also not recommended for extended drain intervals when using DHD.

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).

Click here to view the MSDS Data Sheet for AMSOIL DME.

Keep out of the reach of children. Don't pollute. Return used oil to collection centers.

Close Product Detail
Technical Data
TYPICAL TECHNICAL PROPERTIES
AMSOIL Signature Series Max-Duty Synthetic Diesel Oil (DME)
Kinematic Viscosity @ 100°C, cSt (ASTM D-445)15.6
Kinematic Viscosity @ 40°C, cSt (ASTM D-445)112.4
Viscosity Index (ASTM D-2270)147
CCS Viscosity @ -20°C, cP (ASTM D-5293)4134
Pour Point °C (°F) (ASTM D-97)-40 (-40)
NOACK Volatility, % weight loss (g/100g) (ASTM D5800)5.1
Total Base Number (ASTM D2896)10.1
High-Temperature/High-Shear Viscosity, cP (ASTM D5481)4.5
Sulfated Ash Content, wt. % 1.0
Close Technical Data

 Signature Series Max-Duty Synthetic CK-4 Diesel Oil 15W-40 (DME)

Did this product meet your expectations?

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Product Name: Signature Series Max-Duty Synthetic CK-4 Diesel Oil 15W-40 (DME)
Current Rating: 4.92 out of 5 stars
Votes & Reviews: 84 vote(s) and 87 user reviews.


A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chris: space

Diesel oil

I like this oil in my 99 ford power stroke. Holds up well.

Item Reviewed: Signature Series Max-Duty Synthetic CK-4 Diesel Oil 15W-40 (DME)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mr.AH: space

Will always use this oil

Use this oil in a tow vehicle never loses a drop of oil in 5000 miles

Item Reviewed: Signature Series Max-Duty Synthetic CK-4 Diesel Oil 15W-40 (DME)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Adam: space

Hands down the best oil

I run this stuff in my Duramax and have since I bought it in 12'. It holds up to whatever I put the truck through. Best bang for the buck on the market.

Item Reviewed: Signature Series Max-Duty Synthetic CK-4 Diesel Oil 15W-40 (DME)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gerald Barber: space

Amsoil

Although I've never use this oil before I'm confident I'll love it as I've been useing it in my M/c for years ! You just can't go wrong with amsoil!

Item Reviewed: Signature Series Max-Duty Synthetic CK-4 Diesel Oil 15W-40 (DME)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rosco: space

Switch conventional oil to Synthetic oil

Being a new customer to Amsoil, I've read lots of reviews and spoke with Amsoil Tech several times, and lots of satisfied customers before making the switch. I'm still a few thousand miles away before the first oil change. This is with Amsoil oil filter. With all the above sad, I'm very satisfied with the product and the technicians.

Item Reviewed: Signature Series Max-Duty Synthetic CK-4 Diesel Oil 15W-40 (DME)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Loren from pa: space

Very high quality

Have a 1996 3500 5 speed and have used amsoil in everything since it has had 15,000 and it now has 358,000 with no major breakdown

Item Reviewed: Signature Series Max-Duty Synthetic CK-4 Diesel Oil 15W-40 (DME)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by No: space

Yes

It kept the engine cool. It doesn't break down.

Item Reviewed: Signature Series Max-Duty Synthetic CK-4 Diesel Oil 15W-40 (DME)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Greentown Joe: space

Great product

My mileage increased a bit. The engine runs a lot smother. I plan on keeping my truck for many years and this oil is go to oil.

Item Reviewed: Signature Series Max-Duty Synthetic CK-4 Diesel Oil 15W-40 (DME)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Highheat71: space

Nothing Else For My Cummibs

Best lube oil for my one ton Ram 3500. But not without the Amsoil EA filter.

Item Reviewed: Signature Series Max-Duty Synthetic CK-4 Diesel Oil 15W-40 (DME)
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A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Cliff: space

I would buy this product for any vehicle I have.

I use 15 40 in any vehicle I have which includes my tractors, lawn mowers.

Item Reviewed: Signature Series Max-Duty Synthetic CK-4 Diesel Oil 15W-40 (DME)
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