Syncon®R&O Oil (ISO VG 32-68)

ISO VG 32-68

Phillips 66®Syncon R&O Oil (ISO VG 32-68) is a premium quality, synthetic, rust and oxidation (R&O)-inhibited circulating oil developed primarily for use in rotary screw and rotary vane air compressors operating under severe-service conditions or at extreme temperatures. It is particularly recommended for use in applications where operating conditions may be unfavorable or too severe for conventional mineral oil-based circulating oils.

Features & Benefits

• Outstanding resistance to thermal breakdown at high temperatures

• Outstanding oxidation resistance to minimize deposit and varnish formation

• Protects against wear

• Protects against rust and corrosion

• Good water-separating properties

• Good foam resistance

• Excellent low-temperature fluidity

• Low carbon-forming tendency

• Extended service intervals compared with mineral oil-based lubricants


• Rotary and centrifugal air compressors where the manufacturer specifies a PAO-based lubricant

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

• Electric motor, fan, and blower bearings

• Vacuum pumps

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

Technical Details

Licenses & Approvals


Additional Details
ISO Grade32
AGMA Grade (obsolete)0
AGMA ClassificationR&O
Specific Gravity @ 60°F0.854
Density, lbs/gal @ 60°F7.11
Color, ASTM D15000.5
Flash Point (COC), °C (°F)245 (473)
Pour Point, °C (°F)-51 (-60)
cSt @ 40°C32
cSt @ 100°C5.8
SUS @ 100°F164
SUS @ 210°F45.7
Viscosity Index125
Acid Number, ASTM D974, mg KOH/g0.17
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, mm0.47
FZG Scuffing Test, ASTM D5182, Failure Load Stage9