Subaru 2003 Impreza - Manual (Page 355)

IMPREZA(NA) A1850BE-A (ENGLISH)
Maintenance and service
11-32
J Recommended grade and viscosity
Each oil manufacturer has its own base oils and ad-
ditives. Never use different brands together.
Oil grade: API classification GL-5
SAE viscosity No. and Applicable Temperature
Power steering fluid
J Checking the fluid level
1) Reservoir tank
The power steering fluid expands greatly as its tem-
perature rises; the fluid level differs according to
fluid temperature. Therefore, the reservoir tank has
two different checking ranges for hot and cold
fluids.
Check the power steering fluid level monthly.
1. Park the vehicle on a level surface, and stop the
engine.