Kia 2007 Rio Owner's Manual page 190

Maintenance
Engine coolant
Have coolant changed by an authorized
Kia dealer according to the Maintenance
Schedule at the beginning of this section.
• 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 12
For mixture percentage, refer to the fol-
lowing table.
Mixture Percentage (volume)
Ambient
Temperature
Coolant
Water
Solution
-15°C (5°F) 35 65
-25°C (-13°F) 40 60
-35°C (-31°F) 50 50
-45°C (-49°F) 60 40
I n f o r ma t i o n P r o v i d e d b y :
1JBA7003
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 caus-
ing serious injury.