Phillips Gear Lubricants

PowerDrive® Synthetic All Season TO-4 Fluid

Gear Oil GP

Phillips 66® PowerDrive Synthetic All Season TO-4 Fluid is a premium quality, synthetic, multi-functional fluid developed for use in transmissions, final drives and hydraulic systems of off-highway equipment where a fluid meeting Caterpillar TO-4 performance requirements is specified. It is a multigrade fluid particularly recommended for equipment operating in very cold temperatures as well as year-round service in most climates.



• Synthetic formulation for enhanced performance in arctic temperatures
• Well-balanced frictional properties for smooth and efficient clutch operation
• Outstanding oxidation resistance and thermal stability for long fluid life
• High load-carrying capacity for protection of final drive gear sets
• Excellent deposit control and wear protection
• Protects yellow metals against corrosion
• High shear stability
• Compatible with a wide variety of seals and friction materials
• Excellent low-temperature properties for easier starting at low ambient temperatures
• Good foam resistance
• Suitable for year-round use in most climates


  • Powershift transmissions, hydrostatic transmissions, torque converters, final drives and hydraulic systems of Caterpillar, Euclid, Komatsu and other off-highway construction and mining equipment
  • Heavy-duty automatic transmissions where the OEM specifies an Allison C-4 quality fluid
  • Heavy-duty manual and semi-automatic transmissions in trucks and buses where the OEM specifies a Caterpillar TO-4 quality fluid or a heavy-duty engine oil