2008 KIA Optima fuel cap

Knowing your vehicle72 3Closing the hood1. Before closing the hood, check the fol-
lowing:

must be correctly installed.

bustible material must be removed
from the engine compartment.
2. Lower the hood halfway and push
down to securely lock in place.
Make sure the hood is properly locked
before driving.
FUEL FILLER LID 1. Stop the engine.
2. To open the fuel filler lid, push the
release button located on the driver’s
lower door.3. Pull the fuel filler lid out to open.
4. To remove the cap, turn the fuel tank
cap counterclockwise.
5. Refuel as needed.
6. To install the cap, turn it clockwise until
it “clicks”. This indicates that the cap is
securely tightened.
7. Close the fuel filler lid and push it light-
ly and make sure that it is securely
closed.
CAUTION
- Hood
Before closing the hood, make
sure that all engine parts and
tools have been removed from
the engine area and that no one’s
hands are near the hood opening.
Do not leave gloves, rags or any
other combustible material in the
engine compartment. Doing so
may cause a heat-induced fire.
CAUTION
To avoid injury from sharp edges, it
is recommended that protective
gloves be worn if there is a need to
open the fuel filler door manually.
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373
Knowing your vehicle
WARNING
- Refueling
If pressurized fuel sprays out, it can
cover your clothes or skin and thus
subject you to the risk of fire and
burns. Always remove the fuel cap
carefully and slowly. If the cap is
venting fuel or if you hear a hissing
sound, wait until the condition
stops before completely removing
the cap.
WARNING -
Refueling dan-
gers
Automotive fuels are flammable
materials. When refueling, please
note the following guidelines care-
fully. Failure to follow these guide-
lines may result in severe personal
injury, severe burns or death by fire
or explosion.
Before refueling note the location
of the Emergency Gasoline Shut-
Off, if available, at the gas station
facility.
(Continued)
(Continued)
Static electricity discharge from
the container can ignite fuel
vapors causing a fire. Once refu-
eling has begun, contact with the
vehicle should be maintained
until the filling is complete.
Use only portable plastic fuel
containers designed to carry and
store gasoline.
Do not use cellular phones while
refueling. Electric current and/or
electronic interference from cellu-
lar phones can potentially ignite
fuel vapors causing a fire.
When refueling, always shut the
engine off. Sparks produced by
electrical components related to
the engine can ignite fuel vapors
causing a fire. Once refueling is
complete, check to make sure the
filler cap and filler door are
securely closed, before starting
the engine.
(Continued)
(Continued)
Before touching the fuel nozzle,
you should eliminate potentially
dangerous static electricity dis-
charge by touching another metal
part of the vehicle, a safe distance
away from the fuel filler neck,
nozzle, or other gas source.
Do not get back into a vehicle
once you have begun refueling
since you can generate static
electricity by touching, rubbing or
sliding against any item or fabric
(polyester, satin, nylon, etc.)
capable of producing static elec-
tricity. Static electricity discharge
can ignite fuel vapors resulting in
rapid burning. If you must re-
enter the vehicle, you should
once again eliminate potentially
dangerous static electricity dis-
charge by touching a metal part
of the vehicle, away from the fuel
filler neck, nozzle or other gaso-
line source.
When using a portable fuel con-
tainer be sure to place the con-
tainer on the ground prior to refu-
eling.
(Continued)

Knowing your vehicle74 3
✽
✽
NOTICE• Make sure to refuel with unleaded
fuel only.
• Check to make sure the fuel filler cap is
securely closed after refueling. A loose
fuel filler cap may cause the “Check
Engine (Malfuntion indicator, )”
light in the instrument panel to illumi-
nate unnecessarily.
• If the fuel filler cap requires replace-
ment, use only a genuine Kia cap or
the equivalent specified for your vehi-
cle. An incorrect fuel filler cap can
result in a serious malfunction of the
fuel system or emission control sys-
tem.
• Do not spill fuel on the exterior sur-
faces of the vehicle. Any type of fuel
spilled on painted surfaces may dam-
age the paint.
When fuel filler lid does not open
with the release button1. Open the trunk.
2. Pull the emergency hook for fuel filler
lid inside the trunk.
CHECKCHECK
(Continued)
DO NOT use matches or a lighter
and DO NOT SMOKE or leave a lit
cigarette in your vehicle while at a
gas station especially during
refueling. Automotive fuel is high-
ly flammable and can, when ignit-
ed, result in fire.
If a fire breaks out during refuel-
ing, leave the vicinity of the vehi-
cle, and immediately contact the
manager of the gas station and
then contact the local fire depart-
ment or 911.
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Driving your vehicle26 4Fuel gaugeThe fuel gauge indicates the approxi-
mate amount of fuel remaining in the fuel
tank.
Fuel tank capacity - 62 liters
(16.38 gallons)
The fuel gauge is supplemented by a low
fuel warning light, which will illuminate
when the fuel level has dropped to about
7~8 liters (1.8~2.1 gallons).
Engine temperature gauge This gauge shows the temperature of the
engine coolant when the ignition switch
is ON.
Do not continue driving with an overheat-
ed engine. If your vehicle overheats, refer
to “Overheating” in the Index.✽ ✽
NOTICEIf the gauge pointer moves beyond the
normal range area toward the “H” posi-
tion, it indicates overheating that may
damage the engine.
Trip computer (if equipped)Trip computer is a microcomputer-con-
trolled driver information system that dis-
plays information related to driving on the
LCD.
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Type AType B

433
Driving your vehicle
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 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.
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.
CHECKCHECK
AIR
BAG

59
Driving tips
TRAILER TOWING
✽ ✽
NOTICE
Pulling a trailer improperly can damage
your vehicle and result in costly repairs
not covered by your warranty. To identify what the vehicle trailering
capacity is for your vehicle, you should
refer to the chart on this page.Remember that trailering is different than
just driving your vehicle by itself.
Trailering causes major changes in han-
dling, durability, and fuel economy.
Successful, safe trailering requires cor-
rect equipment, and cautious driving.
This section contains many time-tested,
important trailering tips and safety rules.
Many of these are important for your
safety and that of your passengers.
Please read this section carefully before
you pull a trailer.
WARNING
- Towing a trail-
er
If you don't use the correct equip-
ment or you drive improperly, you
can lose control when you pull a
trailer. For example, if the trailer is
too heavy, the brakes may fail, and
would at least be ineffective to
promptly stop the vehicle. You and
your passengers could be seriously
or fatally injured. Pull a trailer only if
you have followed all the steps in
this section.
WARNING
- Weight limits
Before towing, make sure the total
trailer weight, gross combination
weight, gross vehicle weight, gross
axle weight and trailer tongue load
are all within the limits.
Engine 2.4 Engine 2.7 Engine
Item MT
*1
AT
*2
AT
*2
Maximum trailer Without trailer brakes 454 (1000)*3454 (1000)
weight kg (lbs.) With trailer brakes 907 (2000)*3907 (2000)
Maximum permissible static vertical
80 (176)*380 (176)
load on the coupling device kg (lbs.)*1MT : Manual transaxle
*2AT : Automatic transaxle
*3: Do not use this vehicle for trailer towing.

69
In case of an emergency
Engine compartment
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Fuse/Relay panel descriptionInside the fuse/relay box covers, you can find the fuse/relay
label describing fuse/relay name and capacity.
Engine compartment
Description Fuse rating Protected component
I/P B+ 2 50A In panel B+
ABS 2 40A ABS
DRL 15A Daytime running light
HORN 15A Horn
H/LP LOW 15A Headlight (low)
F/PUMP 20A Fuel pump
H/LP HI 15A Headlight (high)
ECU 10A Engine control unit
ABS 1 40A ABS
ALT 125A (150A)* Alternator
SPARE 10A Spare fuse
SPARE 15A Spare fuse
SPARE 20A Spare fuse
FRT FOG 15A Front fog light
ECU RELAY 30A Engine control unit
POWER AMP 20A Amplifier
SPARE 15A Spare fuse
SPARE 20A Spare fuse
P/OUTLET 25A Power outlet
RAD FAN 30A (40A)* Radiator fan
PCU 10A Power train control system sen-
sors, TCU
ABS 10A ABS
S/WARMER 25A Seat warmer
ATM 20A Automatic transaxle control
S/ROOF 20A Sunroof
SPARE 20A Spare fuse

73
Maintenance
MAINTENANCE SCHEDULE Engine control system
MAINTENANCE
INTERVALS
MAINTENANCE
ITEM
Kilometers or time in months, whichever comes first
× 1,000 km 8 16 24 32 40 48 56 64 72 80 88 96 104 112 120 128
# Months 4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 64
Engine oil & engine oil filter (1) R R R R R RRRRRRRR RRR
Drive belts (tension) I I I I
Cooling system hoses & connections I I I I I
Engine coolant (1) I I I I I RIIIIIRI III
Fuel filterRR
Fuel tank cap, lines, EVAP canister and hoses
II
Fuel tank air filter I R I R I
Air cleaner element (2) I I I I I RIIIIIRI III
Ignition wires I I
Spark plugs (Iridium coated)
Idle speed I I I I I
Engine timing belt 2.7 EngineR
Valve clearance (3)I
Replace every 160,000 km