Here is some test data for you:
THOT 900+ hours
TYPICAL TECHNICAL PROPERTIES
Revised as of 3/07
AMSOIL Synthetic Universal Automatic Transmission Fluid ATF)
Kinematic Viscosity @ 100°C, cSt (ASTM D-445)6.8
Kinematic Viscosity @ 40°C, cSt (ASTM D-445)33.5
Viscosity Index (ASTM D-2270)168...