Pump Oil

Mobil Vacuum Pump Oil 100 is a premium lubricant, blended from specific high quality white oil with low volatility characteristics, for the lubrication of vacuum pumps.

Mobil Vacuum Pump Oil 100 has a high degree of chemical stability enabling it to resist oxidation and the subsequent formation of sludge and deposits, an essential characteristic in all cases where continuous service in involved. This enables the oil to retain its original properties such as viscosity and demulsibility and so prolong oil service life.

Water vapour is a common contaminant in vacuum systems and tends to condense in pumps, oils separators and reservoirs. Mobil Vacuum Pump Oil 100 has good demulsibility to separate readily from water. This aids water removal and prevents its return to metal surfaces to cause rust and corrosion.

Features and Benefits

Mobil Vacuum Pump Oil 100 offers the following benefits:

  • Low volatility characteristics
  • Good air release properties to provide efficient pump operation
  • Good demulsibility to separate quickly from water and resist emulsion formation
  • Good wear protection under start-up and boundary conditions
  • Long service life due to high level of chemical and thermal stability and freedom from deposit formation


Mobil Vacuum Pump Oil 100 is recommended for the lubrication of vacuum pumps and is suitable for applications involving absolute pressures from 50 microns of mercury down to the highest vacua achieved by commercially available vacuum pumps.

It is also suitable for use in pump bearings and sealing glands.

Typical Properties

Test Method Test Units Mobil Vacuum Pump Oil 100
Density DIN 12185 kg/l 874
Kinematic Viscosity at 40°C DIN 3104 100
Flash Point (PM) DIN 2719 °C 270
Pour Point °C -9

Health and Safety

Based on available information, this product is not expected to produce adverse effects on health when used for the intended application and the recommendations provided in the Material Safety Data Sheet (MSDS) are followed. MSDS’s are available upon request through your sales contract office, or via the Internet. This product should not be used for purposes other than its intended use. If disposing of used product, take care to protect the environment.


It cannot be guaranteed that the product information given above is up to date. For the latest version of the Product Data Sheet we refer to the product library of ExxonMobil.