PSO Slide Way Oils are based upon highly refined mineral oils, which incorporate tackiness and lubricity additives to give smooth sideway movement under heavy loads.


  • PSO Slide Way Oil 32 is recommended for machine tools with combined hydraulic and slide way lubrication.
  • PSO Slide Way Oil 68 is the normal recommendation for horizontal sideways.
  • PSO Slide Way Oil 220 is used on heavily or vertical slides.


  • Smooth slide way movement
  • Smooth for all types of slide way material.
  • Good protection against corrosion and staining.
  • Good load carrying capability under heavy loads.

Performance Standards

ISO-VG  32, 68, 220

Typical Key Properties

PSO Slide Way Oil 32 68 220

Kinematic Viscosity @40°C, cSt 

32 68 220
100°C  cSt ASTM D445 5.45 8.86 18.25
Viscosity Index (ASTM D-2270) 95 95 95
Flash Point, (C0C), °C ASTM D-92 180 210 220
Pour Point, °C ASTM D97 -30 -27 -21
Phosphorus, % wt 0.28 0.28 0.28

These typical characters tics are of existing production. Concurrently future production will conform to PSO specification variations in these characteristics may occur.