Hydraulic Fluids
Product Data
castrol.com/GPS
800 255 4417
May 2025
GPS
Castrol
®
Aerial Li Fluid
Typical Physical Characteristics
Test Method Typical Results
Viscosity at 40°C, cSt ASTM D445 24.5
Viscosity at 100°C, cSt ASTM D445 5.9
Viscosity Index ASTM D2270 196
Viscosity @ 100° F., SUS ASTM D2161 127.1
Viscosity @ 210° F., SUS ASTM D2161 45.8
Appearance Visual Red
Brookfield Viscosity at -18°C (0ºF), cP ASTM D2983 660
Brookfield Viscosity at -23°C (-10ºF), cP ASTM D2983 1,290
Brookfield Viscosity at -35°C (-31ºF), cP ASTM D2983 7,560
Brookfield Viscosity at -40°C (-40ºF), cP ASTM D2983 22,350
Pour Point, ºC (ºF) ASTM D97 -46 (-50)
Flash Point, °C (°F) ASTM D92 165 (330)
API Gravity ASTM D287 30.1
Specific Gravity, 60°F ASTM D1298 0.858
Pounds per Gallon ASTM D287 7.291
Aniline Point, ºC (ºF) ASTM D611 92 (198)
Turbine Oil Oxidation (D-943), ASTM D943 2800
hrs to 2.0 TAN
Dielectric Breakdown, ASTM D287 30
voltage KV/0.1 inch
C38
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