Premium quality antiwear hydraulic oils with excellent stability, designed to meet the most stringent requirements of almost all major manufacturers and users of hydraulic equipment. They are formulated using Group II base stocks for increased oxidation performance. These oils are characterized by outstanding rust protection, low deposit formation, good demulsibility, rapid release of entrained air, oxidation resistance, low pour points, and good anti-foam properties. They also contain an effective anti-wear agent that helps reduce wear in high-speed, high-pressure vane and gear pumps.