For what stands the abbreviation VG in an oil name ? E.g. VG 68
VG stands for Viscosity Grade and indicates the viscosity of the refrigeration compressor oil indicated in Cst at 40°C oil temperature
In an installation, can we mix oils of the same type but with a different ISO grade ?
The viscosity of an oil recommended by a compressor manufacturer is essential to the perfect lubrication of the compressor.