2006 KIA Optima fuel

5-3
EMISSION CONTROL
SYSTEM The vehicle emission control system is
covered by a written limited warranty.
Please see the warranty & consumer
information manual in your vehicle.VEHICLE MODIFICATIONSThis vehicle should not be modified.
Modification of your Kia could affect its
performance, safety or durability and
may even violate governmental safety
and emissions regulations.
In addition, damage or performance
problems resulting from any modification
may not be covered under warranty.
ENGINE EXHAUST GAS
PRECAUTIONS
(CARBON MONOXIDE)Engine exhaust gases contain carbon
monoxide. Though colorless and
odorless, it is dangerous and could be
lethal, if inhaled.
 Carbon monoxide can be present
with other exhaust fumes.
Therefore, if you smell exhaust
fumes of any kind inside your
vehicle, have it inspected and
repaired immediately by an
Authorized Kia Dealer. If at all
possible, do not drive with exhaust
fumes present. If you must, do so
only with all windows fully open.
Have your vehicle checked and
repaired immediately.
 Do not operate the engine in confined
or closed areas (such as garages) any
more than what is necessary to move
the vehicle in or out of the area. When the vehicle is stopped in an
open area for more than a short time
with the engine running, adjust the
ventilation system to draw outside air
into the vehicle.
Turn the engine off if you smell any
exhaust fumes.
 Never sit in a parked or stopped
vehicle for an extended time with the
engine running.
 When the engine stalls or fails to
start, excessive attempts to re-start
the engine may cause damage to the
emission control system.
OPERATING PRECAUTIONS
FOR CATALYTIC CONVERTERSYour vehicle is equipped with a catalytic
converter emission control device.
Therefore, the following precautions
must be observed:
 Use only UNLEADED FUEL.
 Do not park the vehicle over or near
flammable objects, such as dry grass,
paper, leaves, etc. Under certain
conditions, they could be ignited by a
hot exhaust system.
MS-CNA-Eng 5 New.qxd 7/25/2005 5:21 PM Page 3

5-5
DRUNK DRIVINGDrinking and driving is dangerous. Drunk
driving is the number one contributor to
the highway death toll each year. Alcohol
impairs a driver’s judgment, vision and
muscular coordination. Even a small
amount of alcohol will affect a driver’s
reflexes, perceptions and judgment.
Please don’t drink and drive, or ride with
a driver who has been drinking. Choose
a designated driver if you’re with a
group, or if you’re alone, call a cab.
DRUGS AND DRIVINGDriving while under the influence of
drugs is as dangerous or more dangerous
than driving under the influence of
alcohol, depending on the drug(s) used
and the quantity consumed. Don’t take
drugs and drive.
If you are taking a prescription medicine,
check with your doctor or pharmacist
regarding whether you may operate a
motor vehicle.
SUGGESTIONS FOR
ECONOMICAL
OPERATIONYour vehicle’s fuel economy is mainly
dependent on your style of driving, how
you drive, where you drive and when
you drive.
Each of these factors has an effect on
how many miles (kilometers) you can get
from a gallon (liter) of fuel. To operate
your vehicle as economically as possible,
use the following driving suggestions to
help save money in both fuel and repairs:
 Avoid lengthy warm-up idling. Once
the engine is running smoothly, begin
driving. Remember, though, that on
cold days, engine warm-up may take
a little longer.
 Save fuel by accelerating slowly after
stopping.
MS-CNA-Eng 5 New.qxd 7/25/2005 5:21 PM Page 5

 Keep the engine in tune and follow the
recommended periodic maintenance
schedule.
This will increase the life of all parts
and lower your operating costs.
 Do not use the air conditioner
unnecessarily.
 Slow down when driving on rough
roads.
 For longer tire life and better fuel
economy, always keep the tires
inflated to the recommended
pressures.
 Maintain a safe distance from other
vehicles to avoid sudden stops. This
will reduce wear on brake linings and
pads and save fuel because extra fuel
is required to accelerate back to
driving speed.
 Do not carry unnecessary weight in
the vehicle. Do not rest your foot on the brake
pedal while driving. This can cause
needless wear, possible damage to
the brakes, and poor fuel economy.
 Improper wheel alignment causes the
tires to roll at excessive angles,
which results in faster tire wear. It
takes more power to overcome this
improper alignment, which wastes
fuel.
 Open windows at high speeds can
reduce fuel economy.
 Crosswinds and headwinds reduce
fuel economy. To help offset some of
this loss, slow down when driving in
these conditions.
Keeping a vehicle in good operating
condition is important both for
economy and safety.
Therefore, have an Authorized Kia
Dealer perform scheduled inspections
and maintenance.
DRIVING TIPS
5-6
WARNING - Engine OFF
Motion
Never turn the engine off to
coast down hills or anytime the
vehicle is in motion. The power
steering and power brakes will
not function without the engine
running. Instead, downshift to
any appropriate gear for engine
braking effect.
MS-CNA-Eng 5 New.qxd 7/25/2005 5:21 PM Page 6

ENGINE COMPARTMENT
IN CASE OF EMERGENCY
6-12
COND FAN
20APWR WIND
40AIGN SW-1
30A
ABS 2
20A FUSE
PULLERABS 1
40A1
COND FAN
HI-1
RAD FAN
HI-1
COND FAN
HI-2
COND
FAN LO
HORN
FR FOGHEAD LP
HIWIPER MTR
STARTER
RAD FAN
HI-2
RAD FAN LO
IGN SW-2
30A
HEAD LP LO
RAD
FAN MTR
30A
A/CON6
2
7
3
8
11
13
14
15
1718
24232728
20
26
16
2122
29
19
25
12
910
45
1 FUEL PUMP (20A)2 HD LP LO (15A)3 ABS (10A)4 INJECTOR (10A)5 A/C COMPR (10A)6 ATM RLY (20A)7 ECU RLY (30A)8 IG COIL (20A)9
10O2SNSR (15A)ECU (15A)
11 HORN (10A)12 HEAD LP HI (15A)13 HEAD LP WASH (20A)14 DRL (15A)15 FR FOG (15A)16 DIODE-1
21
DIODE-222
BLOWER (30A)23
PWR FUSE-2 (30A)24
PWR AMP (20A)
27 PWR FUSE-1 (30A)28 ECU (10A)29 RR HTD (30A)NOT USED
25
SUNROOF (15A)
26
TAIL LP (20A)
17 SPARE (30A)18 SPARE (20A)19 SPARE (15A)20
SPARE (10A)
USE THE DESIGNATED FUSE AND RELAY ONLY
2MS106001A
MS-CNA-Eng 6.QXD 7/25/2005 5:13 PM Page 12

6-13
DESCRIPTION FUSE RATING PROTECTED COMPARTIMENTS
COND FAN20A Condenser fan
PWR WIND40A Power window
ABS 220A ABS
IGN SW-130A Ignition switch
ABS 140A ABS
IGN SW-230A Ignition switch
RAD FAN MTR30A Radiator fan motor
FUEL PUMP20A Fuel pump
HD LP LO15A Headlights (LO)
ABS10A ABS
INJECTOR10A Injector
A/C COMPR10A Air-con compressor
ATM RLY20A ATM Relay
ECU RLY30A Engine control unit relay
IG COIL20A Ignition coil
O
2SNSR15A Oxygen sensor
ECU15A Engine control unit
MS-CNA-Eng 6.QXD 7/25/2005 5:13 PM Page 13

7-3
MAINTENANCE SCHEDULEEngine Control systemI: Inspect these items and their related parts. If necessary,
Check the engine oil and coolant levels every week.
R: Replace or change.
NOTE :
Check the engine oil and coolant levels every week.
Kilometers or Time in Months, Whichever Comes First
km 8 16 24 32 40 48 56 64 72 80 88 96 104 112 120 128Months 4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 64
Engine oil & engine oil filter R R R R R R R R R R R R R R R R
Drive belts (tension)III I
Cooling system hoses & connectionsIIII I
Engine coolant II IIIRIIIIIRIIII
Fuel filterR
Fuel tank cap, lines, EVAP canister and hosesII
Fuel tank air filterIRIR I
Air cleaner element II IIIRIIIIIRIIII
MAINTENANCE
INTERVALS
MAINTENANCE
ITEM
x 1,000
(1)
(1)
(2)
(1) Refer to the lubricant and coolant specifications in the Owner’s Manual.
(2) More frequent maintenance is required if driving under dusty conditions.
MS-CNA-Eng 7.QXD 7/25/2005 5:09 PM Page 3

MAINTENANCE
7-8OWNER MAINTENANCEOWNER MAINTENANCE
SCHEDULEA qualified service technician should
perform these vehicle inspections at the
indicated intervals to ensure safe and
dependable operation.
Bring any problem to the attention of an
Authorized Kia Dealer as soon as
possible.WHEN REFUELING, CHECK:• Engine oil level
• Engine coolant level
• Brake and clutch fluid level
• Washer fluid level
AT LEAST MONTHLY• Tire inflation pressuresEVERY 6 MONTHS, CHECK:• Power steering fluid level
• Automatic transaxle fluid level
You can do the following scheduled
maintenance items if you have some
mechanical ability, a few basic tools and
if you closely follow the directions in
this manual.OWNER MAINTENANCE
PRECAUTIONSImproper or incomplete service may
result in problems. This section gives
instructions only for the maintenance
items that are easy to perform.As explained earlier in this section, several
procedures can be done only by a qualified
service technician with special tools.
Improper owner maintenance during the
warranty period may affect warranty
coverage. For details, read the separate
Kia Warranty and Consumer Information
Manual provided with the vehicle. If
you’re unsure about any servicing or
maintenance procedure, have it done by
an Authorized Kia Dealer.
CAUTION
Be careful when checking your
engine coolant level. The engine
compartment will be hot and you
could be burned.
WARNING - Maintenance
Work
Performing maintenance work
on a vehicle can be dangerous.
You can be seriously injured
while performing some
maintenance procedures. If you
lack sufficient knowledge,
experience or the proper tools
and equipment to do the work,
have it done by a qualified
technician.
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7-25
TIRES AND WHEELSTIRE CAREFor proper maintenance, safety, and
maximum fuel economy, you must
always maintain recommended tire
inflation pressures and stay within the
load limits and weight distribution
recommended for your vehicle.INFLATION PRESSURESCheck all tire pressures (including the
spare) monthly when the tires are cold.
“Cold tires” means the car has not been
driven for at least three hours or driven
less than one mile (1.6 km).
Recommended pressures must be
maintained to ensure ride quality, vehicle
handling, and minimum tire wear.
Watch the battery during
charging, and stop or reduce
the charging rate if the battery
cells begin gasing (boiling)
violently or if the temperature
of the electrolyte of any cell
exceeds 120°F (49°C).
Wear eye protection when
checking the battery during
charging.
Disconnect the battery
charger in the following
order.
1. Turn off the battery
charger main switch.
2. Unhook the negative
clamp from the negative
battery terminal.
3. Unhook the positive clamp
from the positive battery
terminal.
✻
NOTICE
• Before performing battery
maintenance or recharging, turn
OFF all accessories and stop the
engine.
• When remounted battery,
disconnect the negative (-)
battery cable first. When re-
installing the battery, reconnect
the negative (-) battery cable
last.
MS-CNA-Eng 7.QXD 7/25/2005 5:09 PM Page 25