Subaru Impreza 2.2L MT - Manual (Page 278)

IMPREZA U.S.A. (E)
10-22
Oil grade: API classification GL-5
SAE viscosity No. and Applicable Temperature
OM-H0205
Automatic transmission fluid
WARNING
Never let automatic transmission fluid contact your eyes because
automatic transmission fluid can be harmful to your eyes. If auto-
matic transmission fluid gets in your eyes, immediately flush
them thoroughly with clean water. For safety, when performing
this work, wearing eye protection is advisable.
The automatic transmission fluid expands largely as its temperature
rises; the fluid level differs according to fluid temperature. Therefore,
there are two different scales for checking the level of hot fluid and cold
fluid on the dipstick.
Though the fluid level can be checked without warming up the fluid on
the “COLD” side, we recommend checking the fluid level when the fluid
is operating temperature.