Subaru 2005 Forester Owner's Manual page 377

Maintenance and service
5. Drain out the engine oil by removing the drain plug
while the engine is still warm. The used oil should be
drained into an appropriate container and disposed of
properly.
Be careful not to burn yourself with hot engine
oil.
6. Wipe the seating surface of the drain plug with a
clean cloth and tighten it securely with a new sealing
washer after the oil has completely drained out.
11-12
HSB020DA
7. Remove the oil filter with an oil filter wrench.
8. Before installing a new oil filter, apply a thin coat of
engine oil to the seal.
9. Clean the rubber seal seating area of the bottom of
engine and install the oil filter by hand turning. Be
careful not to twist or damage the seal.
10.Tighten the oil filter by the amount indicated in the
following table after the seal makes contact with the
bottom of engine.
HSB020EA