Stoughcool Hydraulic Oils are premium-quality anti-wear hydraulic oils with excellent stability, designed to meet the most stringent requirements of most all major manufacturers and users of hydraulic equipment. These products have excellent rust protection and low residue formation. Stoughcool’s hydraulic oils are formulated with an effective anti-wear agent that helps reduce wear in high-speed, high-pressure vane and gear pumps. Stoughcool only uses top quality base stocks to maintain a clean and consistent blend coupled with premium additives.