Compounded Gear Oil

Compounded Worm Gear & Steam Cylinder Lubricant

Phillips 66®Compounded Gear Oil is a high-quality, compounded lubricant developed for the lubrication of industrial and automotive worm gear drives operating at moderate to high temperatures, and for the lubrication of steam engine cylinders and valves.

Features & Benefits

• Excellent lubricity for protection of sliding surfaces against scuffing

• High film strength

• Emulsifies with water to resist washing

• Good oxidation resistance and thermal stability

• Protects against rust and corrosion

• Non-corrosive to bronze or brass


• Industrial worm gear drives made with non-ferrous alloys (bronze-on-steel)

• Differentials on antique automobiles that require a high-viscosity, compounded gear oil

• Steam engine cylinders and valves

• Bearings on steam-heated calender or mixer rolls

• Screw-down bolts and nuts on aluminum and steel rolling mills

• Heavily loaded, low-speed bearings subject to moisture contamination

• Cylinders of gas compressors handling wet natural gas

• Applications where an SAE 140, SAE 190 or SAE 250, API GL-2 gear oil is specified

Technical Details

Licenses & Approvals
Additional Details
ISO Grade460
AGMA Grade (obsolete)7 Comp
SAE Grade140
AGMA ClassificationCP
Specific Gravity @ 60°F0.894
Density, lbs/gal @ 60°F7.45
Color, ASTM D15007
Flash Point (COC), °C (°F)>300 (>572)
Pour Point, °C (°F)-8 (18)
cSt @ 40°C460
cSt @ 100°C31
SUS @ 100°F2463
SUS @ 210°F152
Viscosity Index97
Acid Number, ASTM D974, mg KOH/g0.2
Copper Corrosion, ASTM D1301a