Page 190 of 238

If the coolant level is low, add enough specified
coolant to provide protection against freezing and
corrosion and to bring the level to F in the coolant
reservoir. Do not overfill. If frequent additions are
required, see an Authorized Kia Dealer for a cooling
system inspection.Changing CoolantChange coolant according to the Scheduled
Maintenance.
Use only soft (de-mineralized) water in the coolant
mixture.
The engine in your vehicle has aluminum engine
parts and must be protected by an ethylene glycol-
based coolant to prevent corrosion and freezing.
DO NOT USE alcohol or methanol coolant and do
not 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.For mixture percentages, refer to the following table.Maintenance7-18
Ambient Temperature
Mixture Percentage
(volume)Coolant
Solution
Water
–15°C (5°F)
35
65
–25°C (-13°F)
40
60
–35°C (-31°F)
50
50
–45°C (-49°F)
60
40
RIO ENG CNA 7-1.qxd 7/29/05 5:16 PM Page 18
Page 199 of 238
Air CleanerElement Replacement1. Remove the air cleaner cover attaching clips.
2. Wipe the inside of the air cleaner housing with a
clean, damp cloth.
7-27
3. Replace the air cleaner element.
4. Re-install in the reverse order of removal.
Replace the element according to the Scheduled
Maintenance.
If the vehicle is operated in extremely dusty or sandy
areas, replace the element more often than at the usual
recommended intervals. (Refer to Schedule 2 - Severe
Maintenance in this section.)
2F2D702134-09020A
RIO ENG CNA 7-2.qxd 7/29/05 5:18 PM Page 27
Page 232 of 238

Interior Care ....................................................................7-52
Interior Features ..............................................................4-40
Interior Lights .................................................................3-65K
eyless Entry System......................................................3-3
Keys ..................................................................................3-2
Label Information ..........................................................5-13
Lighting ...........................................................................4-33
Lubricant Specifications .................................................7-47
Lubricants and Fluids......................................................7-26
Luggage Net ....................................................................3-68M
aintenance Schedule ...................................................7-5
Maintenance Services .......................................................7-3
Manual Transaxle ..............................................................4-7
Mirrors ............................................................................3-62
O
verheating .....................................................................6-2
Overloading.....................................................................5-13
Owner Maintenance ........................................................7-10
Parking Brake ................................................................7-21
Power Outlet ...................................................................3-70
Power Steering.......................................................4-22, 7-22
R
ear Hatch .....................................................................3-54
Rear Window Defroster ..................................................4-38
Road Warning ...................................................................6-2
Roof Rack .......................................................................3-69
Safety Belts ....................................................................3-20
Seats ................................................................................3-11
Special Driving Conditions...............................................5-7
Specifications ................................................................... 8-2
Starting the Engine............................................................4-4
Steering Wheel ................................................................3-62
Suggestions for Economical Operation ............................5-6
Sunglass Holder ..............................................................3-67Tilt Steering ...................................................................4-22
Tires and Wheels.............................................................7-34
Tonneau Cover ................................................................3-71
Towing ............................................................................6-14
Trailer Towing.................................................................5-12
Trunk Lid ........................................................................3-55V
ehicle Break-In Process ................................................1-3
W
arnings and Indicators ...............................................4-27
Windows ...........................................................................3-8
Index9-2
RIO ENG CNA 9.qxd 7/29/05 5:19 PM Page 9-2