Gallon, Vacuum Pump Oil, Offers Performance & Protection For Vacuum Pumps & Air Compressors, A Non-Foaming Oil, For Use In All Piston & Rotary Milking Machine Vacuum Pumps, Specially Formulated With Pour Point Depressant For Easier Cold Weather Starts & Faster Lubrication Of Critical Wear Surfaces, Contains Anti-Wear Additives, Anti-Foam Additives, Oxidation Inhibitors, & Corrosion Protection.