TriboDyn TRI-EX2 80W-250 Full Synthetic Heavy Duty Gear Oil
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TriboDyn TRI-EX² Ceramic 80W-250 Full Synthetic Gear Oil
TriboDyn TRI-EX² 80W-250 is a heavy-duty full synthetic gear oil engineered for the most demanding applications. Its patented Ceramic Charged® technology actively forms a protective ceramic film in areas of extreme pressure and heat, delivering superior protection where conventional gear oils can break down.
This high-viscosity 80W-250 gear oil is designed to handle high loads, shock loading, and elevated operating temperatures while helping to reduce wear, lower friction, and extend the life of gears and bearings.
Key Benefits:
- Patented ceramic coating technology forms a self-lubricating film under extreme pressure and heat
- Excellent extreme pressure (EP) and shock load protection
- Helps reduce operating temperatures in high-load conditions
- Strong thermal and oxidative stability for extended service life
- Provides anti-rust, anti-corrosion, and anti-foam protection
- Compatible with other synthetic and petroleum-based gear oils
Recommended Applications: Ideal for heavy-duty differentials, manual transmissions, transfer cases, worm gears, power dividers, oil-lubricated wheel bearings, and industrial gearboxes operating under severe conditions. Suitable for heavy trucks, commercial vehicles, off-road equipment, and high-load industrial applications.
Specifications: Meets or exceeds API GL-5, API MT-1, and a wide range of OEM specifications including Eaton, Mack, Meritor, ZF, and MIL-PRF-2105E.
Technical Specifications – TriboDyn® Tri-Ex2 80W-250 Full Synthetic Gear Oil
Viscosity @ 100°C (ASTM D445): 41.9 cSt
Viscosity @ 40°C (ASTM D445): 423 cSt
Viscosity Index (ASTM D2270): 151
Pour Point (ASTM D97): -32.8°F (-36°C)
API Gravity (ASTM D4052): 41.9
EP Weld Load (ASTM D2783): 800+ kg
Scar @ 400 kg Load (ASTM D2783): 0.073 mm
CoF @ 400 kg Load (ASTM D2783): 0.109
Patented Ceramic Coating: Yes (Highest Level)
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Why TriboDyn TRI-EX2 80W-250 Outperforms Other heavy duty Gear Oils
Extreme Pressure & Shock Load Protection
Heavy-duty gearboxes and differentials face constant high torque and sudden shock loads. TRI-EX2 80W-250 delivers superior extreme pressure protection, preventing metal-to-metal contact and dramatically reducing wear in the most demanding applications.
Extreme Film Strength & Wear Protection
Standard gear oils break down under heavy loads. TRI-EX2 80W-250 provides exceptional film strength and wear protection, keeping gears and bearings protected longer and reducing metal loss even in high-torque applications.
Patented Ceramic Coating Technology
Varnish buildup is a leading cause of inefficiency and downtime in rotary screw compressors. Tri-Guard 4046’s advanced PAO base and Tri-Guard™ technology provide outstanding resistance to varnish formation, keeping your airend and internals clean far longer than standard oils.
Quieter Operation & Extended Component Life
The combination of high film strength full synthetic oil and patented ceramic coating reduces friction and noise while extending gear and bearing life. TRI-EX2 80W-250 delivers smoother shifting, quieter operation, and significantly longer service intervals than standard gear oils.
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Meets or Exceeds Demanding Industry Specifications
API GL-5 & MT-1 • Eaton PS-386 & PS-164 Rev 7 • Mack GO-J / GO-H • Meritor O-81 • ZF Freedomline • Patented Ceramic Coating Technology • High Moly Content • Superior Film Strength & Extreme Pressure Protection
100% Customer Satisfaction
Hundreds of 5-star reviews • Perfect 100% rating on eBay for over 5 years. You are buying the worlds best oil, our shipping speed, packing, and service is 2nd to none.
Made in the USA
Exclusively manufactured in our own ISO 9001 certified facility. Unmatched purity and quality in every drop.
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Safety Data Sheet (SDS)
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Frequently Asked Questions
It meets or exceeds API GL-5, API MT-1, Eaton PS-386, Mack GO-J/GO-H, Meritor O-81, ZF Freedomline, and many other heavy-duty OEM requirements. It is fully compatible with most synthetic and conventional gear oils.
TriboDyn oils are developed by world-renowned Tribologists with decades of experience engineering high-performance lubricants for aerospace, heavy industry, and professional racing applications. This deep technical expertise ensures every formulation, including TRI-EX2 80W-250, delivers professional-grade performance and reliability you can trust in your heavy-duty equipment.
TRI-EX2 80W-250 is a premium full synthetic gear oil with the highest level of patented ceramic coating technology and high moly content. It forms a durable self-lubricating ceramic film under extreme pressure and heat, providing superior protection where standard gear oils fail.
The highest level of patented ceramic coating actively seeks out areas of heat and pressure to form a protective film that reduces friction, prevents metal-to-metal contact, quiets operation, and can help repair minor wear — delivering longer component life than standard gear oils.
It is engineered for heavy-duty differentials, manual transmissions, transfer cases, worm gears, power dividers, and oil-lubricated wheel bearings in trucks, construction equipment, mining, agriculture, and severe-service applications that require API GL-5 / MT-1 performance.
Yes. It delivers superior film strength and extreme pressure protection (800+ kg EP Weld Load), making it ideal for high-torque, shock-loaded gearboxes and differentials that experience heavy loads and sudden impacts.