5.0 / 5.0
(9) 9 total reviews
Full synthetic 15W-40 API CK-4 diesel oil for high-load agricultural and off-road engines with modern emissions systems. Specifically designed for low speed, high torque around-the-clock applications.
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Description
TRIAX Agra Supreme CK-4 is a full-synthetic, heavy-duty engine oil engineered for peak performance in agricultural and off-road applications. It is formulated to operate under severe conditions where engines run at maximum power 95% of the time, delivers exceptional shear stability and thermal resistance, allowing for long drain intervals exceeding 800 hours on heavy off-road farm equipment.
- Extreme Anti-Wear: Nano boron and moly anti-wear technology safeguards engines under high stress and heavy loads for exceptional durability and longevity.
- Emission System Compatibility: Protects modern DPF and SCR systems in high-performance engines to maintain compliance without sacrificing performance.
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Extended Drain: 800+ hours oil changes, doubling OEM drain intervals for agricultural diesel engines, which reduces maintenance costs and downtime.
- Exceeds API Specs: Outperforms API CK-4 and CI-4 specifications and is compatible with Kubota, John Deere, CASE, CLAAS, Deutz, Fendt, Massey Ferguson, and more.
- Enhanced Performance: Rapid turbo spooling for smooth, responsive operation and improved turbocharger performance without injector stiction or RPM oscillation.
Specifications
Select specifications shown below. For the full list please see the product data sheet.
- API CK-4, CI-4
- VOLVO VDS 4.5
- Cummins CES 20081, 20086
- CAT ECF-3
- MB 228.31, MB 228.51
- Many others. See data sheet for details.
Also use wherever applications call for John Deere Plus II 50 15W-40 engine oil.
OEM Cross-Reference
• John Deere Plus 50 II 15W-40
• Kubota Geniune OEM 15W-40
• Ambra OEM 15W-40 (All Versions)
• Massey Ferguson Multiguard 15W-40

I used on my tractor and really quieted the motor down along with the hydrostatic transmission. Great stuff
I just reached my 400 hour service. I am putting this oil in this weekend. It appears to be a good quality oil but I will monitor how well it lubricates going forward.
I just recently performed the 300 hour service on my TYM T474 tractor. I used all TRIAX fluids. This 15W40 Agra Supreme is legitimate. The engine is now running 2-3 degrees cooler and is so much smoother and quieter. Get you some and you will see.
This is our go to oil on the Ranch. We use it in all of our tractors and pickups. Even the Kubota diesel UTV gets TRIAX Agra Supreme
15W-40.
great
Smoother, Quieter operation on Generator , Less oil consumption . I have been using a few years now .
Bought 5 gallons of Agra Supreme 15W-40 for my tractor one month ago and I can tell you one thing for sure: My tractor loves this oil!!! Tractor is a lot quieter, smoother and starts a lot faster than before. Also runs cooler than before, so don't be afraid to get this awesome staff.
Works phenomenal in my truck! I have 300k on the truck and it's much quieter since switching to this and just seems much smoother in the engine performance and has slowed down the oil consumption dramatically! Keep up the good work Triax and get the other stuff back in stock so I can buy more options lol
Changed it on my tractors at around 800 hours, last one went to 894 hours!!!!! Oil lab said it was good but its already almost 3 times longer than the other oil. Paid for itself already.
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20+ Years In Business
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1M+ Customers Worldwide
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Manufactured in the USA