Compressor Oils

LubeCon offers a comprehensive range of world-class Castrol compressor oils and support services.

We offer superior fluids for rotary screw, rotary vane, centrifugal and reciprocating compressors, in addition to vacuum pumps. Product range includes mineral oil, synthetic/mineral blend (semi-synthetic) and full synthetics to meet the needs of any application.

Outstanding Oxidation Resistance

Laboratory oxidation testing is a valid process for determining how long an oil will last under given conditions of heat and other catalysts that break down the fluid over time. RPVOT (Rotary Pressure Vessel Oxidation Test, ASTM D 2772) is the primary test conducted to determine the oxidation resistance of oils. In a pressure vessel, water and copper catalyst is added to the oil and pressurized with oxygen at a constant temperature of 150° C. The result is the time (in minutes) it takes for the oil to react with enough oxygen to create a 25 psi pressure drop. A long time in the test translates to better oxidation resistance.

Castrol Aircol SR synthetic compressor fluid outperforms six leading competitors in oxidation resistance test.

Compressor Oils Selection Chart

PRODUCT NAMEISO VGs AvailableBase OilAdditives1Viscosity IndexZincFlash Point Range2Pour Point Range2Rotary ScrewRotary VaneCentrifugalRecip - SumpRecip - CylinderVacuum Pump

Mineral Oils

Hyspin VG32 - 220MineralR&O95No410 - 469°F-22 to +14°F✓✓
Tribol HM 94322 - 100MineralAW> 100No374 - 486°F-34 to -11°F✓✓✓✓✓✓✓✓


Tribol CS 1750

46, 68

Semi-SyntheticAW115No490°F - 520°F-36°F to -15°F✓✓✓✓✓✓✓✓✓✓✓✓✓✓✓


Aircol SR

32, 46, 68, 100

PAOAW137 - 142No507°F - 536°F-65°F to -51°F✓✓✓✓✓✓✓✓✓✓✓
Tribol CS 890

32, 68, 100

EsterAW61 - 152No469°F - 500°F-60°F to -27°F✓✓✓✓✓✓✓✓✓✓✓✓✓✓✓✓✓✓

1 R&O = Rust & Oxidation inhibitors AW = Anti-wear
2 Varies by viscosity grade
3 Increasing performance from 1 to 3 checks