Syndustrial®R&O Oil

Synthetic Diester Lubricant

Phillips 66®Syndustrial R&O Oil is a premium quality, synthetic diester lubricant developed for use in air compressors and select steam turbines operating under severe-service conditions, and in moisture-free environments. It is particularly recommended for use in applications where operating conditions may be unfavorable or too severe for conventional mineral oil-based lubricants.

Features & Benefits

• Excellent resistance to thermal breakdown at high temperatures

• Excellent oxidation resistance to minimize sludge and varnish formation

• Protects against wear

• Protects against rust and corrosion

• Natural detergency

• Excellent low-temperature properties

• Extended service intervals compared with conventional mineral oil-based lubricants


• Reciprocating air compressors

• Select rotary air compressors operating in a dry environment

• Elliott ring-oiled turbines, where a synthetic diester turbine oil is specified

• Circulating systems requiring a synthetic diester lubricant

• Steam turbines where the manufacturer specifi es a synthetic diester lubricant

• Plain and rolling-element bearings operating at very high or very low temperatures

• Industrial equipment operating over a wide temperature range where an inhibited mineral oil is recommended

Technical Details

Licenses & Approvals
Additional Details
ISO Grade32
Specific Gravity @ 60°F0.941
Density, lbs/gal @ 60°F7.84
Color, ASTM D15000.5
Flash Point (COC), °C (°F)243 (469)
Pour Point, °C (°F)-51 (-60)
cSt @ 40°C31
cSt @ 100°C5
SUS @ 100°F161
SUS @ 210°F43
Viscosity Index79
Acid Number, ASTM D974, mg KOH/g0.39
Copper Corrosion, ASTM D130, 48 hrs @ 80°C1a
Demulsibility, ASTM D1401, minutes to pass10
Foam Test, ASTM D892, Seq. I, mL0/0
Four-Ball Wear Test, ASTM D4172, Scar Diameter, mm0.7
FZG Scuffing Test, ASTM D5182, Failure Load Stage9
Oxidation Stability, RPVOT, ASTM D2272, minutes>1,750
Rust Test, ASTM D665 A&BPass