Miles Ultihyd Bio ISO 68 - Biodegradable Hydraulic Oil is formulated with synthetic esters to provide enhanced biodegradability and performance. It provides excellent thermal and oxidative resistance, leading to a long fluid life and cleaner operations even in extreme operating conditions. Miles Ultihyd Bio also utilizes the latest anti-wear and anti-corrosion additives to provide exceptional levels of service and protection.Typical properties:ISO Grade 68; Viscosity cSt @ 40°C 68,Flash Point °F (°C) 460 (238),Oxidative Stability 10,000+,Pour Point °F (°C) -45 (-43),Copper Corrosion, 24 Hr 1a,Color