The Superdraulic Zinc Free grades are premium grade Zinc free anti-wear hydraulic fluids suitable for use in systems where silver plated bearings are common, such as Lucas PM – 500 series hydraulic pumps. Offering excellent wear protection and enhanced oxidation control these fluids can offer extended service benefits compared to a zinc containing hydraulic fluid. Being metal additive free Superdraulic Zinc Free hydraulic oils can often be used in more sensitive environments where traditional hydraulic fluid cannot.