Way Oil, Container Size 55 gal, Pail, Base Formulation Petroleum, ISO Grade 150, Oil Type Way Oils, Application QS Way Lube Oils are recommended both as slide way lubricants and as fluids for moderate servicemachine tool hydraulic systems. Miles QS Way Lube Medium ISO 150 is recommended for horizontal slide ways on medium size machine tools. It is also suitable for flood application in large machines.