TRIAX Fleet Ultra 15W-40 CK-4 API Licensed Synthetic Blend, Moly and Boron Performance Boosted, Heavy Duty Diesel Engine Oil

$40.50 USD
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  • Contains built-in performance boosters for friction reduction, oxidation inhibition, shear, and viscosity stability
  • Nano borate and organic molybdenum reinforced for outstanding wear reduction and heat management; eliminates stiction and injector issues; frees most stuck piston rings; contains state-of-the-art dispersal and ash control systems to keep your engine extremely clean
  • API licensed synthetic blend product for the latest API CK-4 New CK-4 spec
  • This product is backwards compatible with virtually all heavy-duty diesel engines from all years on both US, Japanese and European heavy-duty trucks and equipment including previous CJ-4, CI-4, and CI-4 Plus specifications
  • Drain capabilities exceed 12,000 miles for farm trucks, 65,0000 miles for class 8 highway trucks, and 40,000 miles for in city, mixed traffic heavy-duty diesel trucks
SAE J300 Viscosity Grade15W-40
Container TypePail
Compatible with Vehicle TypeTruck
Automotive Fit TypeUniversal Fit
Liquid Volume640
Manufacturer Part NumberTRXULT1540CK
UPC852771008460
ManufacturerTriax Lubricants LLC
Size5 Gallon
Unit Count512 Fluid Ounces
Manufacturer Warranty DescriptionManufacturer warranty for the specifications listed on the sheet.
Sae J300 Viscosity Grade15W-40
ContainerPail
Compatible With Vehicle TypeTruck
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TRIAX Fleet Ultra Heavy Duty Diesel Oils

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  1. TRIAX Fleet Ultra, built to meet and exceed OEM requirements.
  2. TRIAX Fleet Ultra, 20+ Years of Expertise.
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TRIAX Fleet Ultra. Real Data, Real Results. Superior engine defense, extended service life.
TRIAX Fleet Ultra. Up to 65% Less Friction. Nano-Boron & Moly Armor.
TRIAX Fleet Ultra. Longer Drain Intervals. Up to 100K miles in semi trucks

**Based on industry-standard testing vs API CK-4 specification limits.

*Drain Interval Capability Extended service capability up to 100,000+ miles in Class 8 highway trucks and 15,000+ miles in diesel pickups, depending on engine condition, duty cycle, and oil analysis. Available in 5-, 55-, and 265-gallon containers.
Nano-Armor Friction Technology HD Efficient Dynamics with CRP (Continuously Regenerative Plating) using Boron and Molybdenum forms a friction-optimized protective layer that reduces wear and improves durability under heavy load.
Performance Standard Fully API CK-4 licensed; backward compatible with CJ-4, CI-4 Plus, CI-4, and CH-4 applications.
OEM Approval: Meets or Exceeds Volvo VDS-4.5 / VDS-4 / VDS-3, Mack EOS-4.5, Cummins CES 20086, MB 228.31, Caterpillar ECF-3, Renault RLD-4 / RLD-3, DDC 93K222, MAN 3575, Deutz DQC III-10 LA, MTU Type 2.1, Scania LDF-2 / LDF-3 Low Ash, Ford WSS-M2C171-F1.
Emission System Protection ESP Fully compatible with DPF, SCR, DOC, and EGR systems; designed for low and ultra-low sulfur diesel fuels.
**Wear Protection Outstanding friction-modifying properties with up to 65% reduction in friction coefficient vs industry standards, supporting longer component life.
Thermal & Oxidation Stability Up to 30% improved oxidation resistance vs CK-4 requirements, maintaining oil integrity under high heat and severe duty.
Fuel Efficiency Friction-optimized chemistry supports smoother engine operation, reduced noise, and improved efficiency in fleet service.
Viscosity & Shear Stability Exceptional stay-in-grade shear stability under heavy load. Available in 10W-30, 10W-40 and 15W-40 viscosity grades.
Oil Type Synthetic Blend, friction-modified heavy-duty diesel engine oil engineered for modern and legacy diesel engines.
Cold-Start Performance Excellent low-temperature pumpability and rapid oil flow down to -49°C (-56°F), minimizing start-up wear and noise.
Compatible Applications Designed for on-highway and off-highway diesel engines in commercial trucks, diesel pickups, construction, mining, quarrying, and agricultural equipment, including engines from Volvo, Cummins, Mack, Caterpillar, Ford, Renault, and others. Suitable for severe service and high-torque applications.
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