Product information

Gas compressor oils face a unique set of challenges in their operations due to the complex conditions in the compressors. The presence of hydrocarbon gases in the gas stream, for example, may dilute the lubricant. Moreover, high pressures tend to further dissolve them and tamper with the oil's viscosity, reducing its performance. Chemical reactions by the lubricant additives or base oils with components of the gas may also result in the formation of sludge and deposits, affecting the lubricity of your oil, and speeding up wear on your equipment.

All these challenges cause premature component wear, higher maintenance work and costs, and shorter oil change intervals. Hence came the formulation of KLÜBER SUMMIT PGS 68, a polyglycol-based synthetic gas compressor oil, specially formulated for rotary screw gas compressors. With maximum resistance to hydrocarbon dilution, it maintains the proper operating viscosity, extending drain intervals and parts life for your gas compressors.

Furthermore, KLÜBER SUMMIT PGS 68 was designed for optimal compatibility with the gas stream, reducing reaction by-products, deposits and sludge. You can enjoy lower clogging of your filters and their corresponding costs, as well as reduced wear that these deposits usually cause.


  • Highly resistant to hydrocarbon dilution
  • Wear protection
  • Sludge and deposit reduction


  • Maintains proper operating viscosity
  • Protects your compressor parts from wear, extending parts life
  • Enhances equipment performance
  • Extends drain intervals of your compressors


Safety Data Sheet (SDS)


Directions for use

KLÜBER SUMMIT PGS 68 is suitable for use in piston, screw-type and rotary vane compressors for natural or process gas.

Before using KLÜBER SUMMIT PGS 68, drain any old compressor oil from the system as much as possible while it is still warm. Drain coolers, separator tanks, and all lines as well. Next, clean or preferably change the filters. Only recharge with KLÜBER SUMMIT PGS 68 after the aforementioned steps have been completed.

We recommend attaching a label stating the type and fill date of the lubricant to the filter or compressor cover.

To the best of our knowledge, KLÜBER SUMMIT PGS 68 is compatible with NBR (acrylonitrile content > 30 %), EPDM, MVQ (silicone rubber), PTFE and polyurethane foams. It can also be used with paints on an epoxy or phenolic basis.

However, you are advised not to use KLÜBER SUMMIT PGS 68 together with acrylic paints, polyurethane varnishes and synthetic materials on a PVC, polycarbonate and ABS basis.