Transmission Fluids
Product Data
castrol.com/GPS
800 255 4417
May 2025
GPS
Castrol
®
Trans-C
™
HT
Typical Analysis
Test Method Results
Kinematic Viscosity @ 40° C, cSt ASTM D445 84.6
100° C, cSt ASTM D445 11.8
Viscosity Index ASTM D-2270 134
Flash Point °C (°F) ASTM D92 240(464)
Pour Point ºC (ºF) ASTM D97 -36(-33)
Brookfield Viscosity -35°C, cP ASTM D2983 138,000
20 Hours KRL (Shear Test)
Aer Shear cSt @ 100°C CEC-L45-20 11.63
% Viscosity Loss -1.61
FZG Gear Scuffing - Pass Load Stage ASTM D5182 11
FZG Gear Wear - mg wt. Loss ASTM D4998 48
Gravity, API ASTM D287 32
Pounds per Gallon ASTM D287 7.21
Specific Gravity @60F, g/ml ASTM D1298 0.8654
D20
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