Transmission Oil TO-4 SAE 50

Transmission Oil TO-4 SAE 50 – Heavy-Duty Final Drive & Transmission Protection

Transmission Oil TO-4 SAE 50 from Greyhound Lubricants is a high-performance drive-train lubricant formulated for Caterpillar, Komatsu and other heavy equipment requiring the TO-4 performance specification.
It provides reliable protection for power-shift transmissions, final drives, differentials and wet-brake systems operating under severe load, shock and high-temperature conditions.

The Greyhound Lubricants TO-4 series (SAE 10W, 30, 40, 50 and 60) meets Caterpillar’s Transmission and Drive Train Lubricant (TDTO) requirements.
SAE 50 is recommended for differentials and final-drive compartments where maximum film strength and extreme-pressure protection are required.
Blended from high-viscosity mineral base oils and fortified with a robust additive system, it maintains outstanding shear stability, friction balance and oxidation resistance in the toughest operating environments.

Specifications: ISO VG 50; CAT TO-4; GL-3 / GL-4 (GL4); Allison C-3 / C-4; KOMATSU KES 07.868.1; DANA; Vickers M-2950-S; EATON-Fuller; EUCLID; TREMEC / TTC.

• Exceptional load protection: High film strength guards gears and bearings against wear under extreme pressure.
• Friction stability: Maintains optimum clutch engagement and quiet wet-brake operation in heavy-duty transmissions.
• Thermal & oxidation control: Prevents varnish and deposit formation for extended oil life.
• Enhanced shear stability: Maintains viscosity and protection over long drain intervals.
• All-season reliability: Ensures consistent lubrication in high-temperature and high-load off-road conditions.

Full Greyhound Lubricants range (Manufacturer’s site)