Milking Machine Vacuum Pump Oil is a high quality vacuum pump oil specially developed for use in milking machines. This oil is formulated from specially selected highly refined mineral oils. Milking Machine Vacuum Pump Oil is suitable for use in a variety of pumps designs operating in all temperatures and conditions. Also recommended for the lubrication of associated milk handling hydraulics and equipment. The base fluid has been specially chosen to produce a long life product free of oxidation and sludging tendencies.