Kia 2018 Stinger Owner's Manual page 451

Maintenance
■ Engine room rear view
2. Make sure that the tiny protru-
sions inside the coolant cap
should be securely interlocked.
7 24
Recommended engine coolant
• When adding coolant, use only
deionized water or soft water for
your vehicle and never mix hard
water in the coolant filled at the fac-
tory. An improper coolant mixture
can result in serious malfunction or
engine damage.
• The engine in your vehicle has alu-
minum engine parts and must be
protected by an ethylene-glycol
OCK077018 with phosphate based coolant to
prevent corrosion and freezing.
• DO NOT USE alcohol or methanol
coolant or mix them with the spec-
ified coolant.
• Do not use a solution that contains
more than 60% antifreeze or less
than 35% antifreeze. This would
reduce the effectiveness of the
solution.
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