AMSOIL Signature Series Max-Duty 10W-30 Synthetic Diesel Oil
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Maximum-Duty Protection for 10W-30 Diesel Applications
AMSOIL Signature Series Max-Duty 10W-30 delivers 6X more wear protection with low 5.4% NOACK volatility for minimal oil consumption in heavy-duty diesel engines.
Key Benefits
- 6X more wear protection than required by DD13 Scuffing Test
- Low NOACK volatility (5.4%) for minimal oil consumption
- 76% less oil consumption than API CK-4 standard
- Extended drain intervals up to 3X OEM recommendation
- 60% better turbo cleanliness protection
- 2X better rust protection
Technical Specifications
| Property | Value |
|---|---|
| Kinematic Viscosity @ 100°C, cSt | 12.1 |
| Kinematic Viscosity @ 40°C, cSt | 78.2 |
| Viscosity Index | 151 |
| HTHS Viscosity, cP | 3.5 |
| Pour Point | -42°C (-44°F) |
| NOACK Volatility, % weight loss | 5.4% |
| Total Base Number (TBN) | 10.1 |
| Sulfated Ash Content | 0.99% |
Industry Certifications & OEM Approvals
API
- CK-4/SN
Cummins
- CES 20086, CES 20081
Detroit Diesel
- DFS 93K222, 93K218
Volvo
- VDS-4.5
Mack
- EOS-4.5
Pros and Cons
Pros
- 6X more wear protection than required by DD13 Scuffing Test
- Low NOACK volatility (5.4%) for minimal oil consumption
- 76% less oil consumption than API CK-4 standard
- Extended drain intervals up to 3X OEM recommendation
- 60% better turbo cleanliness protection
- 2X better rust protection
Cons
- Premium Investment: Higher initial cost compared to conventional or "shelf-brand" synthetic oils.
- Limited Local Retail: Primarily available through authorized dealers and specialized synthetic outlets. National Synthetics is a local stocking dealer. Call 1-678-944-8816 to confirm in-stock items for same-day local pickup.
Get AMSOIL Signature Series Max-Duty 10W-30 Synthetic Diesel Oil Today
Order directly through Havasu Synthetics for Preferred Customer pricing and fast shipping.
SHOW MY PRICEIndependent AMSOIL Dealer #30576570
Frequently Asked Questions
10W-30 is commonly used in medium and heavy-duty diesel engines from Cummins, Detroit Diesel, and Volvo. It provides slightly thicker film protection than 5W-30 while maintaining good cold-weather performance.
Customer Reviews
See all 1,508 reviewsVery Good Oil
I use this oil in my 2021 DD16 Detroit Diesel in my Semi and my 2015 6.7 Powerstroke. It does a superb job in my Semi under very hard conditions so it was a great choice for my Pickup. The engine Manufacturers for both Engines recommend a good Quality 10W-30 oil. I love this Oil in both of my Trucks and will be a AMSOIL Customer for Life!
AMSOIL Signature Series 10W-30 100% Synthetic Max-Duty Diese
Best oil quality in market. HTHS is 3.5, minimum required by Ford. It is OK. Recommend everyone.
Happy Camper!
I have been using Amsoil in my diesel towing vehicles sense 2004, when I purchased my first diesel GMC 2500 pickup. I tow a 10,000 pound Airstream Travel Trailer 10,000 to 15,000 miles a year, and change my oil one time each year. I have used an Amsoil Duai Filter System with the Bypass filter. I change the Full Flow Filter two times per year, and the Bypass filter one time. I got my oil analyzed each year just before my oil change for six years. I never had the lab recommend I change the oil. I put 125,000 miles om my first Amsoil truck, then sold it to a friend in 2014. The oil I am reviewing was bought for that friend, that is stil towing a Travel Trailer and changing the oil like I did. I now have a 2015 Chevy 3500 Diesel set up just like my 2004 GMC was for Amsoil and dual filters. The order for this oil also included the oil and filters for my new truck. I look forward to getting the same results with this truck doing the same job.
Good product
Great product but the price is becoming ridiculous. I will probably be looking for an alternative soon.
Max-Duty Diesel engine oil SAE 10w-30
So far so good, I've heard a lot of good stuff about your oil. I hope it's better than the free Tire Gauge that I received with the oil.
The Absolute Best Diesel Engine Oil
My 2013 Silverado 2500HD Duramax is a “Working Beast” I drive for a Crew of Amish Barn Builders, towing a 30’ Gooseneck trailer with 4 men beside myself. This Signature Series Oil makes my Duramax “ Growl” like a wild Beast. I was a “Purple” fan for decades- I won’t run any other engine oil since I first tried Amsoil Signature Series, at 155,000 miles- It’s still pulling Strong- Thanks Amsoil 👍
Independent AMSOIL Dealer #30576570. Product information sourced from AMSOIL. Visit AMSOIL.com for the most current product details and availability.