2018 KIA OPTIMA HYBRID engine

Maintenance
80
8
LIGHT BULBS
Bulb replacement precaution
Please keep extra bulbs on hand
with appropriate wattage ratings in
case of emergencies.
Refer to “Bulb Wattage” in chapter 9.
When changing lamps, first turn off
the engine at a safe place, firmly
apply the parking brake and detach
the battery’s negative (-) terminal.
Use only bulbs of the specified
wattage.✽ ✽ NOTICE
• If the light bulb or lamp connector
is removed while the lamp is still
on, the fuse box's electronic sys-
tem may log it as a malfunction.
Therefore, a lamp malfunction
incident may be recorded as a
Diagnostic Trouble Code (DTC) in
the fuse box.
• It is normal for an operating lamp to flicker momentarily. This is due
to a stabilization function of the
vehicle’s electronic control device.
If the lamp lights up normally
after momentarily blinking, then
it is functioning as normal.
However, if the lamp continues to
flicker several times or turns off
completely, there may be an error
in the vehicle’s electronic control
device. Please have the vehicle
checked by an authorized Kia
dealer immediately.
WARNING- Working on
the lights
Prior to working on the light,
firmly apply the parking brake,
ensure that the engine
start/stop button is in OFF posi-
tion and turn off the lights to
avoid sudden movement of the
vehicle and burning your fingers
or receiving an electric shock.
CAUTION -Light replace-
ment
Be sure to replace the burned- out bulb with one of the samewattage rating. Otherwise, itmay cause damage to the fuseor electric wiring system.
CAUTION -Headlamp
Lens
To prevent damage, do notclean the headlamp lens withchemical solvents or strongdetergents.

895
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 main-
tain its luster.
Removing oil, tar, and similar materi-
als 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 wax-
ing.
Do not apply wax on embossed
unpainted unit, as it may tarnish the
unit.
OJB037800
CAUTION - Wet engine
Water washing in the enginecompartment including highpressure water washing maycause the failure of electricalcircuits located in the enginecompartment.
Never allow water or other liq- uids to come in contact withelectrical/electronic compo-nents inside the vehicle asthis may damage them.
CAUTION - Drying vehicle
Wiping dust or dirt off the body with a dry cloth willscratch the finish.
Do not use steel wool, abra- sive cleaners, acid detergentsor strong detergents contain-ing high alkaline or causticagents on chrome-plated oranodized aluminum parts.This may result in damage tothe protective coating andcause discoloration or paintdeterioration.

8103
Maintenance
Canister
Fuel 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 sole-
noid valve.
Purge Control Solenoid Valve(PCSV)
The purge control solenoid valve is
controlled by the Engine Control
Module (ECM); when the engine
coolant temperature is low during
idling, the PCSV closes so that evap-
orated 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.
3. Exhaust emission control system
The Exhaust Emission Control
System is a highly effective system
which controls exhaust emissions
while maintaining good vehicle per-
formance.
Vehicle modifications
This vehicle should not be modified.
Modification of your vehicle could
affect its performance, safety or
durability and may even violate gov-
ernmental safety and emissions reg-
ulations.
In addition, damage or performance
problems resulting from any modifi-
cation may not be covered under
warranty.
If you use unauthorized electronic
devices, it may cause the vehicle to
operate abnormally, wire damage,
battery discharge and fire. For your
safety, do not use unauthorized
electronic devices.
Engine 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 vehi-
cle, have it inspected and repaired
immediately. If you ever suspect
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
carbon monoxide (CO). Though
colorless and odorless, it is
dangerous and could be lethal if
inhaled. Follow the instructions
on this page to avoid CO poi-
soning.

Maintenance
104
8
Do not operate the engine in con-
fined 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 vehicle 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.Operating precautions for catalyt-
ic converters (if equipped)
WARNING- Catalytic converter
Keep away from the catalytic
converter and exhaust system
while the vehicle is running or
immediately thereafter. The
exhaust and catalytic systems
are very hot and may burn you.
WARNING- Fire
Do not park, idle or drive the vehicle over or near flamma-
ble objects, such as grass,
vegetation, paper, leaves, etc.
A hot exhaust system can
ignite flammable items under
your vehicle.
Also, do not remove the heat sink around the exhaust sys-
tem, do not seal the bottom of
the vehicle or do not coat the
vehicle for corrosion control.
It may present a fire risk under
certain conditions.

8105
Maintenance
Your vehicle is equipped with a cat-
alytic converter emission control
device.
Therefore, the following precautions
must be observed:
Use only UNLEADED FUEL forgasoline engines.
Do not operate the vehicle when there are signs of engine malfunc-
tion, such as misfire or a noticeable
loss of performance.
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 con-
trol system. All inspections and
adjustments must be made by an
authorized Kia dealer.
Avoid driving with an extremely low fuel level. Running out of fuel could
cause the engine to misfire, dam-
aging the catalytic converter. Failure to observe these precautions
could result in damage to the catalyt-
ic converter and to your vehicle.
Additionally, such actions could void
your warranties.
Perchlorate Material-special handling
may apply, See www.dtsc.ca.gov/haz-
ardouswaste/ perchlorate.
Notice to California Vehicle Dismantlers:
Perchlorate containing materials,
such as air bag inflators, seatbelt
pretensioners and keyless remote
entry batteries, must be disposed of
according to Title 22 California Code
of Regulations Chapter 67384.10
(a).
CALIFORNIA
PERCHLORATE NOTICE

Specifications, Consumer information and Reporting safety defects
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
9-2
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2
Bulb wattage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
Tires and wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4
Gross vehicle weight. . . . . . . . . . . . . . . . . . . . . . . . . 9-5
Luggage volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . 9-5
Recommended lubricants and capacities . . . . . . . . 9-6
• Recommended SAE viscosity number. . . . . . . . . . . . . 9-7
Vehicle identification number (VIN) . . . . . . . . . . . 9-8
Vehicle certification label. . . . . . . . . . . . . . . . . . . . . 9-8
Tire specification and pressure label . . . . . . . . . . . 9-9
Engine number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-9
Air conditioner compressor label . . . . . . . . . . . . . . 9-9
Refrigerant label. . . . . . . . . . . . . . . . . . . . . . . . . . . 9-10 Consumer assistance (U.S. only) . . . . . . . . . . . . . . 9-11
•
Toll free consumer assistance . . . . . . . . . . . . . . . . . . . 9-11
• Emergency roadside assistance . . . . . . . . . . . . . . . . . 9-11
• Trip interruption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-12
• Registering your vehicle in a foreign country . . . . . 9-13
Electrical Equipment (U.S. only) . . . . . . . . . . . . . 9-14
• Installation of a mobile two-way radio system . . . . . 9-14
Reporting Safety Defects (U.S. only) . . . . . . . . . . 9-15
Online factory authorized manuals (U.S. only) . . 9-15
• Service manual: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-15
• Electrical troubleshooting manual: . . . . . . . . . . . . . . 9-15
• Owner's manual: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-
15
9

Specifications, Consumer information, Reporting safety defects
29
DIMENSIONS
ENGINE
ItemUnit : in (mm)
Overall length191.1 (4,855)
Overall width73.2 (1,860)
Overall height57.7 (1,460)
Tread
Front205/65 R16*63.5 (1,614)
215/55 R1763.1 (1,602)
Rear205/65 R16*63.8 (1,621)
215/55 R1763.3 (1,609)
Wheelbase110.4 (2,805)
Item
Gasoline
2.0 GDI HEV
Displacement [cu. in (cc)]
121.99 (1,999)
Bore x Stroke
[in. (mm)]3.19 X 3.81 (81.0 X 97.0)
Firing order
1-3-4-2
No. of cylinders
4. In-line
* : Only for Hybrid vehicle. Not for Plug-in hybrid vehicle

Specifications, Consumer information, Reporting safety defects
69
RECOMMENDED LUBRICANTS AND CAPACITIES
To 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.
*
3If the API SM engine oil is not available, you can use API SN or above.
*4If the ILSAC GF-4 engine oil is not available, you can use ILSAC GF-5 or above.
Lubricant VolumeClassification
Engine oil *1*2
(drain and refill)
Recommends
4.33 US qt. (4.1 l)API SM or above*3, ILSAC GF-4 or above*4,
ACEA-A5 or above
Automatic transaxle fluid6.34 US qt. (6.0 l)
- ATF SP-IV
(Recommended SK ATF SP-IV,
MICHANG ATF SP-IV, NOCA ATF SP-IV)
Coolant7.12 US qt. (6.74 l)Mixture of antifreeze and water
(Ethylene glycol base coolant for aluminum radiator)
Inverter coolant3.30 US qt. (3.13 l)Mixture of antifreeze and water
(Ethylene glycol base coolant for aluminum radiator)
Brake0.52 ± 0.02 US qt. (0.49 ± 0.02 L)DOT 3 or DOT 4
FuelHybrid17.17 US gal. (65 l)Refer to Fuel requirements in chapter 1.Plug-in hybrid14.52 US gal. (55 l)