430
Cooling System
Refer to “ Engine Oil ” FP468 .
NOTE
Engine oil viscosity ( thickness ) affects fuel economy . Oils of lower viscosity provide better fuel economy . However , in hot weather , oil of higher viscosity is required to properly lubricate the engine .
& Synthetic Oil s11ae05
You should use synthetic engine oil that meets the same requirements given for conventional engine oil . When using synthetic oil , you must use oil of the same classification , viscosity and grade shown in this Owner ’ s Manual . Refer to “ Engine Oil ” FP468 . Also , you must follow the oil and filter changing intervals shown in the “ Warranty and Maintenance Booklet ”.
NOTE
Synthetic oil of the grade and viscosity noted in chapter 12 is the recommended engine oil for optimum engine performance . Conventional oil may be used if synthetic oil is unavailable .
11-7 . Cooling System
WARNING
. Never 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 removed .
. Be careful of the rotating cooling fan when the engine hood is open . When the engine temperature is high , the cooling fan in the engine compartment may operate when the ignition switch is in the “ ON ” position , even if the engine is stopped . Touching the cooling fan while it is rotating may result in injury .
CAUTION
. Vehicles are filled at the factory with SUBARU SUPER COOLANT that does not require the first change for 11 years / 137,500 miles ( 11 years / 220,000 km ). Do not mix this coolant with any
s11af other brand or type of coolant during this period . Mixing with a different coolant will reduce the life of the coolant . When necessary to top up the coolant for any reason , use only SUBARU SUPER COOLANT .
If SUBARU SUPER COOLANT is diluted with another brand or type , the maintenance interval is shortened to that of the mixing coolant .
. Do not splash the engine coolant over painted parts . The alcohol contained in the engine coolant may damage the paint surface .
& Cooling Fan , Hose and Connections s11af03
Your vehicle employs an electric cooling fan which is thermostatically controlled to operate when the engine coolant reaches a specific temperature .