Subaru 2005 Legacy Owner's Manual page 513

Maintenance and service
2. Park the vehicle on a level surface and stop the en-
gine.
3. Remove the oil filler cap.
2.5-liter turbo models
11-14
Other models
4. 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.
5. Wipe the seating surface of the drain plug with a
clean cloth and tighten it securely with a new sealing