Subaru 2004 Forester Owner's Manual page 361

Maintenance and service
Never attempt to remove the radiator cap until
the engine has been shut off and has cooled
down completely. Since the coolant is under
pressure, you may suffer serious burns from a
spray of boiling hot coolant when the cap is re-
moved.
4. Install the under cover.
2
Non-turbo models
1) Filler neck
2) Fill up to this level
11-18
Turbo models
1
1) Filler neck
2) Fill up to this level
5. Slowly pour the coolant and fill to the radiator filler
neck. Do not pour the coolant too quickly, as this may
lead to insufficient air bleeding and trapped air in the
system.
HSB028BB
1
USB518BB
2