Castrol Hydraulic Oil 68

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Castrol Hydraulic Oil 68

The Castrol Hydraulic™ Oil range are based upon mineral oil enhanced with a stabilised zinc additive system.

Castrol Hydraulic is primarily for use in hydraulic equipment, but is suitable for other duties in which lubricants with good oxidation stability and lubrication performance are required. The quality of its base oils and additives permits the application of the Castrol Hydraulic range in lightly loaded gears and for use as circulating oil in applications where a rust and oxidation inhibited oil is required. 

Specification :-

Typical Characteristics      
Name Method Units Hydraulic Oil 68
ISO Viscosity Grade - - 68
Density @ 15°C / 59°F ISO 12185 / ASTM D4052 kg/m³ 880
Kinematic Viscosity @ 40°C / 104°F ISO 3104 / ASTM D445 mm²/s 68
Kinematic Viscosity @ 100°C / 212°F ISO 3104 / ASTM D445 mm²/s 8.77
Viscosity Index ISO 2909 / ASTM D2270 - >95
Pour Point ISO 3016 / ASTM D97 °C/°F _24/-11
Flash Point - open cup method ISO 2592 / ASTM D92 °C/°F 226 / 439
Foam Sequence I - tendency / stability ISO 6247 / ASTM D892 ml/ml 10/0
Water Separation @ 54°C / 129°F (40/37/ 3) ISO 6614 / ASTM D1401 min 15
Air Release @ 50°C / 122°F ISO 9120 / ASTM D3427 min 8
FZG Gear Scuffing test - A/8.3/90 ISO 14635-1 Failure Load Stage 12
Rust test - distilled water (24 hrs) ISO 7120 / ASTM D665A   Pass
Rust test - synthetic seawater (24 hrs) ISO 7120 / ASTM D665B   Pass