See also:

Checking air conditioning system before summer season
Check the air conditioner unit for refrigerant leaks, hose conditions, and proper operation each spring. Have the air conditioning system checked by your SUBARU dealer. ...

Turbo models
Except STI The engine is designed to operate using premium unleaded gasoline with an octane rating of 91 AKI (95 RON) or higher. If premium unleaded gasoline is not available, regular unleaded gasoli ...

If steam is coming from the engine compartment
Turn off the engine and get everyone away from the vehicle until it cools down. ...