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TRIAX Agra Supreme ESP 15W-40 CK-4 - Full Synthetic Super Heavy Duty Diesel Engine Oil - For High Load, High Torque, Sustained Power Applications (5 Gallon)

  • Based on 31 reviews
Condition: New
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Availability: In Stock.
Fulfilled by TRIAX Lubricants LLC

Arrives Sep 2 – Sep 4
Order within 15 hours and 32 minutes
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Size: 5 Gallon Pail


Features

  • 15W-40 FULL SYNTHETIC API CK-4 Licensed and Certified Diesel Engine Oil - Specifically designed for high torque, sustained power applications such as farming, off-road hauling, towing and construction. Replaces all farm equipment OEM diesel oils.
  • NANO BORON & MOLY ENHANCED WEAR PROTECTION - Nano-Boron and Moly friction modifiersContains built-in, highly modified friction reducers and wear control technology to provide unmatched wear protection for pistons, bearings, and turbo-chargers.
  • SUPERIOR VISCOSITY & SHEAR STABILITY - Built for high loads, excellent resilience to sustained power, and sustained and shock loaded engines. Resists shear viscosity breakdown for the duration of its drain interval.
  • API LICENSED - This product is API licensed for all CK-4, CJ-4, CI-4 and previous applications. - Extended Drain Capable: 800+ hours for farm equiment, 100,000 miles for heavy duty trucks and 35,000 miles for diesel pick trucks.
  • Designed to significantly reduce wear on bearings, turbochargers, pistons, cams, tappet, and virtually all critical engine parts by up to 65%; 21% better corrosive and abrasive wear protection for sustained performance
  • OEM REPLACEMENT / COMPATIBILITY: JD Plus II 50, Kubota 15W-40, Ambra 15W-40, CASE, Caterpillar 15W-40.
  • SUPERIOR PERFORMANCE TO OEM FLUIDS: Higher wear protection, better shear stability, less friction and heat. Engines run cooler, longer, quieter. More thermal stability and resistance to shear.
  • SUPERIOR ENGINE CLEANLINESS: 40-60% cleaner turbo-chargers, piston rings and liners vs major OEM / Brand fluids.

Viscosity: 15W 40 sae_grade


Brand: Triax


Vehicle Service Type: Heavy duty equipment engines, Diesel trucks and equipment, Heavy duty agricultural engines


Flash Point: 400 Degrees Fahrenheit


UPC:


Viscosity: ‎15W 40 sae_grade


Brand: ‎Triax


Vehicle Service Type: ‎Heavy duty equipment engines, Diesel trucks and equipment, Heavy duty agricultural engines


Flash Point: ‎400 Degrees Fahrenheit


UPC: ‎850064598094


Automotive Fit Type: ‎Vehicle Specific Fit


Manufacturer: ‎Triax Lubricants LLC


Size: ‎5 Gallon


Model: ‎AGSP15W-40


Item Weight: ‎39 pounds


Product Dimensions: ‎15 x 9 x 14 inches


Country of Origin: ‎USA


Item model number: ‎AGSP15W-40


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎TRXAGRASUP


Date First Available: July 19, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 2 – Sep 4

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Good synthetic oils priced right.
Size: 5 Gallon
Good oil for my 2005 New Holland TC33DA. Runs smoother, quieter and more responsive. I had run a straight 30w prior and Mobil Delvac 15w40. This oil stays cleaner longer. I also changed over to their Agra Utto Supreme full synthetic transmission and hydraulic oil. My tractor is a hydrostatic drive. I had used a Traveler oil for this prior. After changing over I noticed it is much quieter, a lot less whine when moving. My hydraulics, front end loader and rear are much smoother and responsive. I also use Triax Power 4 stroke 30w for my Kohler powered (12-18 hp) Gravely tractors. Runs clean and smooth. Switched from Red Line to Triax Synergy 5w30 for my 2014 F150 3.5 eco boost, and Synergy 5w20 for my 2012 Escape 2.5. Good results for me in all vehicles with their oil. I am not associated with the company nor was I compensated for this review. ... show more
Reviewed in the United States on May 5, 2025 by Woody Woody

  • Great price great product
Research the product read the reviews and compared with other like oils and I can't complain this stuff. Hands-down is what I'm calling the best I've ever used. You really have to get down into the science of the oils and read how it's designed made and etc., and when I compared them with other oils, this is the one I like the best but on top of all that I am a strong believer. If you change your oil regularly, that's the best you can do for your vehicle. ... show more
Reviewed in the United States on November 14, 2024 by Russ salva

  • Still going strong after 8000 miles
I changed the oil on my 1999 Camry 2.2l 4 cylinder at 8100 miles and did an oil analysis. It was still in good shape and I could have probably gone another 2000 miles or more on the oil. Overall great oil.
Reviewed in the United States on June 27, 2024 by Customer Review

  • High zinc, good for older motors
Used in my 78' Chevy 350. Good stuff plenty of moly, zinc, and boron. Good for an older flat tappet, pushrod engine. Full synthetic also a plus. The price is ok. It was at $22 for a gallon a few months ago.
Reviewed in the United States on July 9, 2023 by Levi Loomis

  • Works Great in My Kubota
My Kubota MX5000 tractor likes this oil very much. It runs smoothly and starts very quickly. Next up, I will be using it in an Isuzu diesel-powered generator. Great stuff.
Reviewed in the United States on October 24, 2019 by G. Card

  • The engine sounds better and is good for mileage plus engine life!
Size: 5 Gallon
I’ve been purchasing this product for quite a while and is 100 percent satisfied! I strongly recommend it to everyone!
Reviewed in the United States on September 24, 2019 by Amazon Customer

  • Outstanding oil
Size: 5 Gallon
Great oil.
Reviewed in the United States on May 6, 2021 by CROSS RANCH

  • Diesel tractor
Great product. I use it in my tractor.
Reviewed in the United States on December 18, 2019 by 68e

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