Changing The Coolant - Kia 2016 Optima Owner's Manual

For mixture percentage, refer to the
following table.
Mixture Percentage
Ambient
(volume)
Temperature
Antifreeze
5°F (-15°C) 35
-13°F (-25°C) 40
-31°F (-35°C) 50
-49°F (-45°C) 60
Water
65
60
50
40
WARNING
Radiator cap
Do not remove the radiator cap
when the engine and radiator
are hot. Scalding hot coolant
and steam may blow out under
pressure which may result in
serious injury.

Changing the coolant

Have the coolant changed by an
authorized Kia dealer according to
the Maintenance Schedule at the
beginning of this chapter.
Put a thick cloth around the radiator
cap before refilling the coolant in
order to prevent the coolant from
overflowing into engine parts such as
the alternator.
OJF075007
Put a thick cloth or fabric
-
around the radiator cap before
refilling the coolant in order to
prevent the coolant from over-
flowing into engine parts such
as the generator.
Maintenance
CAUTION
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