User Manual - Page 469

For 2020 HYUNDAI SONATA.

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Maintenance
8-22
For mixing percentage, refer to the
following table:
Ambient
Temperature
Mixture Percentage
(volume)
Antifreeze Water
5°F (-15°C) 35 65
-
13°F (-25°C) 40 60
-31°F (-35°C) 50 50
-49°F (-45°C) 60 40
Information
If in doubt about the mix ratio, a 50%
water and 50% antifreeze mix is the
easiest to mix together as it will be the
same quantity of each. It is suitable to use
for most temperature ranges of - 31°F and
higher.
WARNING
Make sure the coolant cap is properly
closed after refilling coolant. Otherwise
the engine could be overheated while
driving.
Engine room front view
Engine room front view
ODN8089052L
ODN8089052L
1. Check if the coolant cap label is
straight In front.
2. Make sure that the tiny protrusions
inside the coolant cap is securely
interlocked.
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ODN8089044
WARNING
Never remove the engine
coolant reservoir tank/radiator
cap or the drain plug while the
engine and radiator are hot.
Hot coolant and steam may blow out
under pressure, causing serious injury.
Turn the engine off and wait until the
engine cools down. Use extreme care
when removing the engine coolant
reservoir tank/radiator cap. Wrap
a thick towel around it, and turn it
counterclockwise slowly to the first
stop. Step back while the pressure is
released from the cooling system. When
you are sure all the pressure has been
released, press down on the cap, using
a thick towel, and continue turning
counterclockwise to remove it.
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