Kia Rio 2008 Manual page 202

Maintenance
Engine coolant
• Use only soft (de-mineralized) water in
the coolant mixture.
• The engine in your vehicle has alu-
minum engine parts and must be pro-
tected by an ethylene-glycol-based
coolant to prevent corrosion and freez-
ing.
• DO NOT USE alcohol or methanol
coolant or mix them with the specified
coolant.
• Do not use a solution that contains
more than 60% antifreeze or less than
35% antifreeze, which would reduce
the effectiveness of the solution.
7 14
For mixture percentage, refer to the fol-
lowing table.
Mixture Percentage (volume)
Ambient
Temperature
Coolant
Solution
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 -
Do not remove the radiator cap
when the engine and radiator are
hot. Scalding hot coolant and steam
may blow out under pressure caus-
ing serious injury.
1JBA7003
Radiator cap