Cooling System; Cooling Fan, Hose And Connections - Subaru WRX 2021 Owner's Manual

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11-16
Maintenance and service/Cooling system
mended engine oil for optimum engine
performance. Conventional oil may be
used if synthetic oil is unavailable.

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 pres-
sure, 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 tempera-
ture is high, the cooling fan in the
engine compartment may oper-
ate 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
other brand or type of coolant
during this period. Mixing with a
different coolant will reduce the
life of the coolant. When neces-
sary to top up the coolant for any
reason, use only SUBARU
SUPER COOLANT.
If the 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 con-
nections
Your vehicle employs an electric cooling
fan which is thermostatically controlled to
operate when the engine coolant reaches
a specific temperature.

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