2007 KIA Optima fuel

Driving your vehicle28
4Average vehicle speedThis mode displays the average vehicle
speed, and is reset to 0 km/h (0 mph)
when the ignition key is turned OFF.
Distance to empty (km or MI)This mode indicates the estimated dis-
tance to empty from the current fuel in
the fuel tank. When the remaining dis-
tance is below 50 km (30 miles), a blink-
ing “----” symbol will be displayed.
The distance to empty value will be
affected by factors such as driving condi-
tions, driving habits, and engine condi-
tion.
Ambient temperature ( °C or °F)
(if equipped)This mode indicates the current ambient
temperature. The meter’s working range -
40°C (-40°F) to 80°C (176°F)
1MGH4924N
Type AType B
1MGH4926N
Type AType B
1MGH4921N
Type AType B

429
Driving your vehicle
✽
✽NOTICE• If the vehicle is not on level ground or
the battery power has been interrupt-
ed, the “DISTANCE TO EMPTY”
function may not operate correctly.
The trip computer may not register
additional fuel if less than 6 liters
(1.59 US gal) of fuel are added to the
vehicle.
• Trip computer provides a driver with supplemental information about the
current operating status of your vehi-
cle. So the estimated distance to empty
can be changed according to operat-
ing status of your vehicle, average fuel
consumption and previously driving
style. Therefore the values approved
or displayed on LCD for the first time
can be different with your vehicle’s.
• The figure of distance to empty is esti- mated driving distance, so it can be
different from the driving distance
really is.
Instrument panel illumination
(if equipped)When the vehicle’s parking lights or head-
lights are on, rotate the illumination con-
trol knob to adjust the instrument panel
illumination intensity.
You can turn ON or OFF the interior
lights by rotating the control knob to the
maximum position when the interior
lights are turned OFF.
OMG045015

Driving your vehicle30
4Warning lights / audible indicators Checking operation All warning lights are checked by turning
the ignition switch ON (do not start the
engine). Any light that does not illuminate
should be checked by an authorized Kia
dealer.
After starting the engine, check to make
sure that all warning lights are off. If any
are still on, this indicates a situation that
needs attention. When releasing the
parking brake, the brake system warning
light should go off. The fuel warning light
will stay on if the fuel level is low.Anti-lock brake system
(ABS) warning light (if
equipped) This light illuminates if the key is turned
to ON and goes off in approximately 3
seconds if the system is operating nor-
mally.
If the light stays on, you may have a
problem with your ABS. Contact an
authorized Kia dealer as soon as possi-
ble.
Electronic brake force
distribution (EBD) sys-
tem warning
(if equipped)If ABS and BRAKE warning lights illumi-
nate at the same time while driving, your
vehicle has a problem with the ABS and
EBD system.
In this case, your ABS and regular brake
system may not work normally. Have the
vehicle checked by an authorized Kia
dealer as soon as possible.
Engine oil pressure
warning This warning light indicates the engine oil
pressure is low.
If the warning light illuminates while driv-
ing:
1. Drive safely to the side of the road and
stop.
2. With the engine off, check the engine oil level. If the level is low, add oil as
required.
If the warning light remains on after
adding oil or if oil is not available, call an
authorized Kia dealer.✽ ✽ NOTICEIf the engine is not stopped immediately,
severe damage could result.
WARNINGS AND INDICATORS
ABS
ABS
WARNING
- Brake indica-
tors
If the both ABS and Brake warning
lights are ON and stay ON, your
vehicle’ s brake system will not work
normally. You may experience an
unexpected and dangerous situa-
tion during sudden braking. In this
case, avoid high speed driving and
abrupt braking. Have your vehicle
checked by Authorized Kia Dealer
as soon as possible.

Driving your vehicle32
4Parking brake & brake
fluid warning Parking brake warning This light is illuminated when the parking
brake is applied with the ignition switch in
the START or ON position. The warning
light should go off when the parking
brake is released.Low brake fluid level warningIf the warning light remains on, it may
indicate that the brake fluid level in the
reservoir is low.
If the warning light remains on:
1. Drive carefully to the nearest safe
location and stop your vehicle.
2. With the engine stopped, check the brake fluid level immediately and add
fluid as required. Then check all brake
components for fluid leaks.
3. Do not drive the vehicle if leaks are found, the warning light remains on or
the brakes do not operate properly.
Have it towed to any authorized Kia
dealer for a brake system inspection
and necessary repairs.
To check bulb operation, check whether
the parking brake and brake fluid warning
light illuminates when the ignition switch
is in the ON position.
Trunk lid open
warning (if equipped)This warning light activates when the
trunk is not closed securely.Door ajar warningThis warning light illuminates when a
door is not closed securely.Low washer fluid level
warning indicator
(if equipped)This warning light indicates the washer
fluid reservoir is near empty. Refill the
washer fluid as soon as possible.
Low fuel level
warningThis warning light indicates the fuel tank
is nearly empty. The warning light will
come on when the fuel level has dropped
to about 7~8 liters (1.8~2.1 gallons).
Refuel as soon as possible.Headlight high beam
indicator This indicator illuminates when the head-
lights are on and in the high beam posi-
tion or when the turn signal lever is pulled
into the Flash-to-Pass position.Air bag warning
(if equipped) This warning light will blink or illuminate
for approximately 6 seconds each time
you turn the ignition switch to the ON
position.
If this indicator does not go out, or if it illu-
minates while the vehicle is being driven,
see an authorized Kia dealer for immedi-
ate service.
WARNING
Driving the vehicle with a brake
warning light on is dangerous. If the
brake warning light remains on,
have the brakes checked and
repaired immediately by an author-
ized Kia dealer.
AIR
BAG

433
Driving your vehicle
Malfunction indicator
(if equipped)This indicator light is part of the Engine
Control System which monitors various
emission control system components. If
this light illuminates while driving, it indi-
cates that a potential problem has been
detected somewhere in the emission
control system.
Generally, your vehicle will continue to be
drivable and will not need towing, but
have the system checked by an author-
ized Kia dealer as soon as possible.✽ ✽NOTICEA loose fuel filler cap may cause the On
Board Diagnostic System Malfunction
Indicator Light ( ) in the instrument
panel to illuminate unnecessarily.
Always make sure that the fuel filler cap
is tight.
✽ ✽NOTICE• Prolonged driving with the Emission
Control System Malfunction
Indicator Lamp ( ) illuminated
may cause damage to the emission
control systems which could effect dri-
vability and/or fuel economy.
•If the
Emission
Control System
Malfunction Indicator Lamp ( )
begins to flash ON and OFF, potential
catalytic converter damage is possible
which could result in loss of engine
power. Have the Engine Control
System inspected as soon as possible by
an authorized Kia dealer.
ESC indicator
(Electronic Stability
Control) (if equipped) The ESC indicator will illuminate when
the ignition switch is turned ON, but
should go off after approximately 3 sec-
onds. When the ESC is on, it monitors
the driving conditions and under normal
driving conditions, the ESC light will
remain off. When a slippery or low trac-
tion condition is encountered, the ESC
will operate, and the ESC indicator will
blink to indicate the ESC is operating.ESC OFF indicator
(if equipped)The ESC OFF indicator will illuminate
when the ignition switch is turned ON,
but should go off after approximately 3
seconds. To switch to ESC OFF mode,
press the ESC OFF button. The ESC
OFF indicator will illuminate indicating
the ESC is deactivated. If this indicator
stays on in the ESC ON mode, the ESC
may have a malfunction. Take your car to
the authorized Kia dealer and have the
system checked.
CHECK
CHECK
CHECK
CHECK
CHECKCHECK
ESCESC OFF

5
Fuel requirements / 5-2
Emission control system / 5-2
Before driving / 5-4
Suggestions for economical operation / 5-5
Special driving conditions / 5-6
Trailer towing / 5-9
Overloading / 5-14
Label information / 5-15
Driving tips

Driving tips25FUEL REQUIREMENTSGasoline engine (unleaded)Your new Kia vehicle is designed to use
only unleaded fuel with a minimum
Octane Rating of 87 Anti-Knock Index
(AKI).✽ ✽NOTICENEVER USE LEADED FUEL. The use
of leaded fuel is detrimental to the cat-
alytic converter and will damage the
engine control system’s oxygen sensor
and affect emission control.
Never add any fuel system cleaning
agents to the fuel tank other than what
Kia has specified. (Consult an
Authorized Kia Dealer for details.)Gasoline containing alcohol and
methanolGasohol, a mixture of gasoline and
ethanol (also known as grain alcohol),
and gasoline or gasohol containing
methanol (also known as wood alcohol)
are being marketed along with or instead
of leaded or unleaded gasoline.
Do not use gasohol containing more than
10% ethanol, and do not use gasoline or
gasohol containing any methanol. Either
of these fuels may cause drivability prob-
lems and damage to the fuel system. Discontinue using gasohol of any kind if
drivability problems occur.
Vehicle damage or driveability problems
may not be covered by the manufactur-
er’s warranty if they result from the use
of:
1. Gasohol containing more than 10%
ethanol.
2. Gasoline or gasohol containing methanol.
3. Leaded fuel or leaded gasohol.
✽ ✽ NOTICENever use gasohol which contains
methanol. Discontinue use of any gaso-
hol product which impairs drivability.
The emission control system of your
vehicle is covered by a written limited
warranty. Please see the warranty infor-
mation contained in the Warranty &
Consumer Information Manual in your
vehicle.Vehicle modifications This vehicle should not be modified.
Modification of your Kia could affect its
performance, safety or durability, may
violate governmental safety and emis-
sions regulations, and void the vehicle’s
warranty.
In addition, damage or performance
problems resulting from any modification
may not be covered under warranty.Engine exhaust gas precautions
(carbon monoxide)
WARNING -
Exhaust
Engine exhaust gases contain car-
bon monoxide (CO). Though color-
less and odorless, it is dangerous
and could be lethal if inhaled.
Follow the instructions following to
avoid CO impairment.EMISSION CONTROL SYSTEM

53
Driving tips
 Carbon monoxide can be present withother exhaust fumes. Therefore, if you
smell exhaust fumes of any kind inside
your vehicle, have it inspected and
repaired immediately. If you ever sus-
pect exhaust fumes are coming into
your vehicle, drive it only with all the
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 (as needed) to draw
outside air into the vehicle.
 Never sit in a parked or stopped vehi- cle for any 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
converters Your vehicle is equipped with a catalytic
converter emission control device.
Therefore, the following precautions
must be observed:
 Use only UNLEADED FUEL for gaso-line engine (unleaded).
 Do not operate the vehicle when there are signs of engine malfunction, such
as misfire or a noticeable loss of per-
formance.
 Do not misuse or abuse the engine. Examples of misuse are coasting with
the ignition off and descending steep
grades in gear with the ignition off.  Do not operate the engine at high idle
speed for extended periods (5 minutes
or more).
 Do not modify or tamper with any part of the engine or emission control sys-
tem. All inspections and adjustments
must be made by an authorized Kia
dealer.
Failure to observe these precautions
could result in damage to the catalytic
converter and to your vehicle.
Additionally, such actions could void your
warranties.
WARNING
- Fire
A hot exhaust system can ignite
flammable items under your vehi-
cle. Do not park the vehicle over or
near flammable objects, such as
grass, vegetation, paper, leaves,
etc.