Rear Differential Gear Oil; Checking The Gear Oil Level - Subaru 2008 Impreza Owner's Manual

11-24
Maintenance and service
& Recommended grade and
viscosity
Each oil manufacturer has its own base
oils and additives. Never use different
brands together.
Oil grade:
API classification GL-5
SAE viscosity No. and applicable tempera-
ture

Rear differential gear oil

& Checking the gear oil level
1) Filler plug
2) Drain plug
Except WRX STI
1) Filler hole
2) Drain hole
3) Oil level
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.