T5X®Off-Road Mobile Hydraulic Fluid

High-Performance Hydraulic Fluid

Phillips 66®T5X Off-Road Mobile Hydraulic Fluid is a high-performance hydraulic fluid designed primarily for use in the hydraulic systems of Caterpillar and other off-highway mobile equipment. It also may be used in the hydrostatic transmissions of some off-road equipment.

Features & Benefits

• High viscosity index for use over a wide temperature range

• Excellent wear protection for hydraulic system components

• High dispersancy-detergency for excellent system cleanliness

• Protects against deposit formation

• Protects against rust and corrosion

• Good resistance to foaming


• Hydraulic systems and some hydrostatic transmissions on Caterpillar and other off-highway mobile equipment

• Hydraulic systems operating over a wide temperature range

Technical Details

Licenses & Approvals
Additional Details
SAE Grade10W
Specific Gravity @ 60°F0.872
Density, lbs/gal @ 60°F7.26
Color, ASTM D1500L 2.5
Flash Point (COC), °C (°F)210 (410)
Pour Point, °C (°F)-39 (-38)
Viscosity, Kinematic
cSt @ 40°C48
cSt @ 100°C7.5
Viscosity Index120
Sulfated Ash, ASTM D874, wt %1.16
Total Base Number (TBN), ASTM D28968.7
Zinc, wt %0.099