Servo Marine HYD oils are recommended for hydraulic systems of deck machinery, steering gears, hatch covers, compressor lubrication, turbo blowers etc. These are recommended for hydraulic pumps even under severe operating conditions in stationary and mobile equipment. These oils are also recommended for circulation, splash, bath and ring oiling systems of the bearings (both plain and anti-friction) and gears of industrial machinery that require a long life lubricant.