Subaru IMPREZA 2002 Owner's Manual page 353

Maintenance and service
1) Filler hole 3) Oil level
2) Drain hole
Remove the plug from the filler hole and check the
oil level. The oil level should be kept even with the
bottom of the filler hole. If the oil level is below the
bottom edge of the hole, add oil through the filler
hole to raise the level.
CAUTION
If the vehicle requires frequent refilling, there
may be an oil leak. If you suspect a problem,
have the vehicle checked at your SUBARU
dealer.
11-28
HB0078
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 Tem-
perature
OM-H0205