Xtreme Duty 75W-90 Gear Oil

Xtreme Duty™ SAE 75W-90 is a premium full synthetic gear oil engineered to protect gears, bearings, and drivetrain components under severe pressure, high loads, and extreme temperatures. Its advanced GL-5 additive system maintains a strong lubricating film, resists thermal breakdown, and delivers dependable flow at temperatures as low as -40°C.

Made in the USA for differentials, heavy-duty drive axles, transfer cases, and non-synchronized manual transmissions requiring SAE 75W-90 API GL-5 or API MT-1 performance.

Formulated for the Controlled Operating Environment™

The Controlled Operating Environment™ is The Hub Corporation’s system-level approach to preserving stable, protective conditions inside critical mechanical assemblies.

Xtreme Duty™ Gear Oil supports that environment by maintaining a durable lubricating film, controlling oxidation and deposit formation, protecting against rust and corrosion, and helping preserve seal integrity. The result is a cleaner, more stable lubrication environment designed to help drivetrain components perform reliably and reach their intended service life.

Key Features:

• Extreme-pressure protection: Greater protection for expensive drivetrain components operating under demanding conditions.
• Exceptional cold-flow performance: Faster lubrication during cold starts, easier startup, and reduced exposure to startup wear.
• Strong high-temperature film strength: Reliable component separation and reduced wear during high-temperature operation.
• Thermal and oxidation stability: Cleaner components, more consistent lubricant performance, and extended-drain potential where permitted.
• Rust and corrosion protection: Improved reliability and longer component life, including during storage and moisture exposure.
  

Applications:

• Differentials
  
• Heavy-duty drive axles
• Transfer cases
• Non-synchronized manual transmissions
• High-load and high-torque drivetrain applications
• Equipment operating across wide temperature ranges

Tech Specs:

• Lubricant type: Full synthetic GL-5 gear lubricant
• Viscosity: SAE 75W-90
• Container size: 1 U.S. quart / 946 mL