2009 KIA Optima fuel

753
Maintenance
Waxing
Wax the vehicle when water will no
longer bead on the paint.
Always wash and dry the vehicle before
waxing. Use a good quality liquid or
paste wax, and follow the manufacturer’s
instructions. Wax all metal trim to protect
it and to maintain its luster.
Removing oil, tar, and similar materials
with a spot remover will usually strip the
wax from the finish. Be sure to re-wax
these areas even if the rest of the vehicle
does not yet need waxing.
G230103AUNFinish damage repair Deep scratches or stone chips in the
painted surface must be repaired
promptly. Exposed metal will quickly rust
and may develop into a major repair
expense.✽ ✽NOTICEIf your vehicle is damaged and requires
any metal repair or replacement, be sure
the body shop applies anti-corrosion
materials to the parts repaired or
replaced. G230104AUNBright-metal maintenance To remove road tar and insects, use a
tar remover, not a scraper or other
sharp object.
To protect the surfaces of bright-metal parts from corrosion, apply a coating of
wax or chrome preservative and rub to
a high luster.
During winter weather or in coastal areas, cover the bright metal parts with
a heavier coating of wax or preserva-
tive. If necessary, coat the parts with
non-corrosive petroleum jelly or other
protective compound.
G230105AUNUnderbody maintenanceCorrosive materials used for ice and
snow removal and dust control may col-
lect on the underbody. If these materials
are not removed, accelerated rusting can
occur on underbody parts such as the
fuel lines, frame, floor pan and exhaust
system, even though they have been
treated with rust protection.
Thoroughly flush the vehicle underbody
and wheel openings with lukewarm or
cold water once a month, after off-road
driving and at the end of each winter. Pay
special attention to these areas because
it is difficult to see all the mud and dirt. It
will do more harm than good to wet down
the road grime without removing it. The
lower edges of doors, rocker panels, and
frame members have drain holes that
should not be allowed to clog with dirt;
trapped water in these areas can cause
rusting.
CAUTION
Wiping dust or dirt off the body with a dry cloth will scratch thefinish.
Do not use steel wool, abrasive cleaners, or strong detergentscontaining highly alkaline or caustic agents on chrome-platedor anodized aluminum parts. Thismay result in damage to the pro-tective coating and cause discol- oration or paint deterioration.

Maintenance58
7EMISSION CONTROL SYSTEMG270000AUN-EUThe emission control system of your
vehicle is covered by a written limited
warranty. Please see the warranty infor-
mation contained in the Owner’s
Handbook & Warranty Information book-
let in your vehicle.
Your vehicle is equipped with an emis-
sion control system to meet all applicable
emission regulations.
There are three emission control sys-
tems, as follows.
(1) Crankcase emission control system
(2) Evaporative emission control system
(3) Exhaust emission control system
In order to assure the proper function of
the emission control systems, it is rec-
ommended that you have your car
inspected and maintained by an author-
ized KIA dealer in accordance with the
maintenance schedule in this manual. Caution for the Inspection and
Maintenance Test (With Electronic
Stability Control (ESC) system)
To prevent the vehicle from misfir-
ing during dynamometer testing,
turn the Electronic Stability Control
(ESC) system off by pressing the
ESC switch.
After dynamometer testing is com- pleted, turn the ESC system back on
by pressing the ESC switch again.
G270100AUN1. Crankcase emission control systemThe positive crankcase ventilation sys-
tem is employed to prevent air pollution
caused by blow-by gases being emitted
from the crankcase. This system supplies
fresh filtered air to the crankcase through
the air intake hose. Inside the crankcase,
the fresh air mixes with blow-by gases,
which then pass through the PCV valve
into the induction system.G270200AFD2. Evaporative emission controlThe Evaporative Emission Control
System is designed to prevent fuel
vapors from escaping into the atmos-
phere.

759
Maintenance
G270201AUNCanisterFuel vapors generated inside the fuel
tank are absorbed and stored in the
onboard canister. When the engine is
running, the fuel vapors absorbed in the
canister are drawn into the surge tank
through the purge control solenoid valve.G270202AUNPurge Control Solenoid Valve (PCSV)The purge control solenoid valve is con-
trolled by the Engine Control Module
(ECM); when the engine coolant temper-
ature is low during idling, the PCSV clos-
es so that evaporated fuel is not taken
into the engine. After the engine warms-
up during ordinary driving, the PCSV
opens to introduce evaporated fuel to the
engine.
G270300AUN3. Exhaust emission control systemThe Exhaust Emission Control System is
a highly effective system which controls
exhaust emissions while maintaining
good vehicle performance.G270301AUNVehicle modifications This vehicle should not be modified.
Modification of your vehicle 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.
G270302AUNEngine exhaust gas precautions
(carbon monoxide) 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. 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.
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 on this
page to avoid CO poisoning.

Maintenance60
7 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 restart the
engine may cause damage to the
emission control system.
G270303AUNOperating precautions for catalyticconverters (if equipped)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 engines.
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.
Avoid driving with a very low fuel level. If you run out of gasoline, it could
cause the engine to misfire and result
in excessive loading of the catalytic
converter.
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, idle, or drive the
vehicle over or near flammable
objects, such as grass, vegetation,
paper, leaves, etc.

Specifications, Consumer information48RECOMMENDED LUBRICANTS AND CAPACITIES I040000AMG-ECTo help achieve proper engine and powertrain performance and durability, use only lubricants of the proper quality. The correct
lubricants also help promote engine efficiency that results in improved fuel economy.These lubricants and fluids are recommended for use in your vehicle.*1Refer to the recommended SAE viscosity numbers on the next page.
*2Engine oils labeled Energy Conserving Oil are now available. Along with other additional benefits, they contribute to fuel econo my by reducing
the amount of fuel necessary to overcome engine friction. Often, these improvements are difficult to measure in everyday driving, but in a year’s
time, they can offer significant cost and energy savings.Lubricant Volume Classification
4.3 l (4.5 US qt.)
4.5 l (4.7 US qt.)
Manual transaxle fluid 1.75 l(1.85 US qt.) API Service GL-4 (SAE 75W-85, fill for-life)
Automatic transaxle fluid 7.8
l (8.2 US qt.)
DIAMOND ATF SP-III, SK ATF SP-III
9.5 l (10.0 US qt.)
Power steering 0.8 l (0.8 US qt.) PSF-4
6.4~6.9 l(6.8~7.3 US qt.) Mixture of antifreeze and water (Ethylene glycol
Coolant 8.2~8.3 l(8.7~8.8 US qt.) base coolant for aluminum radiator)
Brake/clutch fluid 0.9 l(1.0 US qt.) FMVSS116 DOT-3 or DOT-4
Fuel 62 l (16.4 US gal.) -Engine oil *
1*2
(drain and refill) API Service SL or SM,
ILSAC GF-3 or above
2.4L
2.7L 2.4L
2.7L
2.4L
2.7L

85
Specifications, Consumer information
I040100AUN-EURecommended SAE viscosity
number
Engine oil viscosity (thickness) has an
effect on fuel economy and cold weather
operating (engine start and engine oil
flowability). Lower viscosity engine oils
can provide better fuel economy and cold
weather performance, however, higher
viscosity engine oils are required for sat-
isfactory lubrication in hot weather. Using
oils of any viscosity other than those rec-
ommended could result in engine dam-
age.When choosing an oil, consider the range
of temperature your vehicle will be oper-
ated in before the next oil change.
Proceed to select the recommended oil
viscosity from the chart.
CAUTION
Always be sure to clean the area
around any filler plug, drain plug, ordipstick before checking or drain- ing any lubricant. This is especiallyimportant in dusty or sandy areasand when the vehicle is used on unpaved roads. Cleaning the plugand dipstick areas will prevent dirtand grit from entering the engineand other mechanisms that could be damaged.
Temperature Range for SAE Viscosity Numbers
Temperature
Engine Oil *
1°C
(°F)
-30 -20 -10 0 10 20 30 40 50 -10 0 20 40 60 80 100 120
1. For better fuel economy, it is recommended to use the engine oil of a viscosity grade SAE 5W-
20, 5W-30 (API SL, SM / ILSAC GF-3 or above). However, if the engine oil is not available in
your country, select the proper engine oil using the engine oil viscosity chart.
10W-30
5W-20, 5W-30

Index2I
Air bag - supplemental restraint system ··················\
······3-34
Air cleaner ··················\
··················\
··················\
···············7-24
Appearance care··················\
··················\
··················\
·······7-52
Audio system ··················\
··················\
··················\
···········4-95
Automatic climate control system ··················\
···············4-78
Automatic transaxle ··················\
··················\
··················\
·5-10
Automatic transaxle fluid ··················\
··················\
··········7-21
Battery··················\
··················\
··················\
··················\
····7-27
Before driving ··················\
··················\
··················\
············5-3
Brake fluid ··················\
··················\
··················\
···············7-19
Brake system··················\
··················\
··················\
············5-16
Bulb wattage ··················\
··················\
··················\
··············8-2
Child restraint system ··················\
··················\
················3-26
Climate control air filter ··················\
··················\
············7-24
Cruise control system ··················\
··················\
················5-26
Defroster ··················\
··················\
··················\
··················\
4-67Dimensions ··················\
··················\
··················\
················8-2
Door locks··················\
··················\
··················\
················4-12
Economical operation ··················\
··················\
················5-30
Emergency starting ··················\
··················\
··················\
····6-4
Emission control system ··················\
··················\
············7-58
Engine compartment ··················\
··················\
············2-4, 7-2
Engine coolant ··················\
··················\
··················\
·········7-16
Engine number ··················\
··················\
··················\
···········8-7
Engine oil ··················\
··················\
··················\
·················7-15\
Explanation of scheduled maintenance items ···············7-12
Fuel filler lid ··················\
··················\
··················\
············4-24
Fuel requirements ··················\
··················\
··················\
······1-3
Fuses ··················\
··················\
··················\
··················\
······7-43
Hazard warning flasher··················\
··················\
··············4-57
Hood··················\
··················\
··················\
··················\
·······4-23
How to use this manual ··················\
··················\
···············1-2A
EFH
BCD