2012 KIA Optima Hybrid fuel

Maintenance
70
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.Operating 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 extremely low fuel level. Running out of fuel could cause
the engine to misfire, damaging 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
Do not park, idle or drive the vehi- cle over or near flammable
objects, such as grass, vegeta-
tion, paper, leaves, etc. A hot
exhaust system can ignite flam-
mable items under your vehicle.
Also, do not remove the heat sink around the exhaust system, do
not seal the bottom of the vehicle
or do not coat the vehicle for cor-
rosion control. It may present a
fire risk under certain conditions.
WARNING - Catalytic
converter
Keep away from the catalytic con-
verter and exhaust system while
the vehicle is running or immedi-
ately thereafter. The exhaust and
catalytic systems are very hot and
may burn you.

5
Specifications, Consumer information, Reporting safety defects
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 econ-
omy 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 service SM engine oil is not available in your country, you are able to use API service SL.
LubricantVolumeClassification
Engine oil *1 *2
(drain and refill)
Recommended
(or equivalent)4.76 US qt. (4.5 l)API Service SM*3,
ILSAC GF-4 or above
Automatic transaxle fluid6.87 US qt. (6.5 l)MICHANG ATF SP-IV, SK ATF SP-IV
NOCA ATF SP-IV, KIA genuine ATF SP-IV
Coolant 6.97~7.29 US qt. (6.6~6.9 l)Mixture of antifreeze and water (Ethylene glycol base
coolant for aluminum radiator)
Inverter coolant2.39 US qt. (2.26 l)Mixture of antifreeze and water (Ethylene glycol basecoolant for aluminum radiator)
Brake fluid0.7~0.8 US qt.
(0.7~0.8 l)FMVSS116 DOT-3 or DOT-4
Fuel17.2 US gal. (65 l)Unleaded gasoline
8

Specifications, Consumer information, Reporting safety defects
68
Recommended 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
operated 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 couldbe 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 theengine oil of a viscosity grade SAE 5W-20 (API Service SM
/ ILSAC GF-4). However, if the engine oil is not available,
select the proper engine oil using the engine oil viscosity
chart.
10W-30
5W-20, 5W-30

H2
Kia Hybrid-Electric Vehicle (HEV) uses
a gasoline engine and an electric
motor for power. The electric motor is
run from a 270V high voltage HEV bat-
tery.
The HEV computer decides when to
use the engine and when to use elec-
tric motor, according to driving condi-
tions. At times, both are used simulta-
neously.
By turning off the engine under cer-
tain conditions and using the electric
motor alone, the HEV system saves
fuel.
When the HEV battery reaches a low
state of charge, the engine will cycle
on and off to recharge the battery.
Charging also occurs when decelerat-
ing by using regenerative braking.Hybrid System Display
Many of the displays provide information
about the hybrid system, such as the
ECO Level and ECO Score.
The ECO Level displays inform the driver
of the vehicle's fuel efficiency. If the vehi-
cle is driven economically, the ECO Level
rises. When the vehicle is driven in EV
mode, there is a reduction in carbon diox-
ide (CO2) emissions.
The Total ECO Score display indicates
the number of times the ECO Level has
reached its maximum.ECO Level display
When the vehicle is started, the ECO
Level display will indicate level number 4.
If you drive economically, the ECO Level
will increase. However, if you do not drive
economically, the ECO Level will
decrease.
Kia HYBRID SYSTEM
OTFH042300

H14
If An Accident Occurs
Avoid the engine compartment.
Avoid any orange or high voltagewires, cables, or components.
Assume that a high voltage component is exposed and move away from the
vehicle as promptly as possible.
Refer to Chapter 6 for towing informa- tion or call Kia Roadside Assistance.
When the hybrid vehicle shuts off
When the high voltage battery or 12-volt
battery discharges, or fuel tank is empty,
the hybrid system may not operate.
If the Hybrid system stops operating
while the vehicle is moving, reduce the
vehicle speed gradually. Pull your vehi-
cle off the road in a safe area, and shift
the transmission in to Park (P) position
and;
1. Turn on the hazard warning flashers.
2. Set the start button at OFF, and try tostart the Hybrid system by applying the
brake pedal and pushing the start but-
ton.
3. If the Hybrid system will not operate, refer to "EMERGENCY STARTING" in
chapter 6. Before you try to jump start the vehicle,
confirm the fuel level. If the fuel level is
low add more fuel before attempting as
emergancy start.
THE COMPONENTS OF HYBRID VEHICLE (CONT.)
WARNING - Accident
Vehicle
Never touch electric wires or cable.
If exposed electric wires or cables
are visible inside or outside of your
vehicle, an electric shock may
occur.
WARNING - PUTTING OUT
FIRE
Never use water to put out a fire in
your vehicle. If a fire occurs, evalu-
ate the car immediately and contact
the fire department

Index
4I
Driving in flooded areas ··················\
··················\
············5-35
Driving in the rain··················\
··················\
··················\
····5-35
Economical operation ··················\
··················\
················5-31
Electric chromic mirror (ECM) with HomeLink system ··················\
··················\
··················\
··················\
··4-37
Electric power steering ··················\
··················\
··············4-34
Electronic stability control (ESC) ··················\
···············5-20
Emergency starting ··················\
··················\
··················\
····6-5 Jump starting ··················\
··················\
··················\
···········6-5
Push starting ··················\
··················\
··················\
············6-6
Emergency while driving ··················\
··················\
·············6-3
Emission control system ··················\
··················\
············7-68 Crankcase emission control system··················\
···········7-68
Evaporative emission control System ··················\
·······7-68
Exhaust emission control system ··················\
··············7-69
Engine ··················\
··················\
··················\
··················\
······8-2
Engine compartment ··················\
··················\
············2-4, 7-2
Engine coolant ··················\
··················\
··················\
·········7-24
Engine number ··················\
··················\
··················\
···········8-8
Engine oil ··················\
··················\
··················\
·················7-22\
Engine overheats ··················\
··················\
··················\
········6-7
Engine start/stop button ··················\
··················\
···············5-5
Engine temperature gauge ··················\
··················\
·········4-50 Evaporative emission control System ··················\
··········7-68
Exhaust emission control system··················\
·················7-69\
Explanation of scheduled maintenance items ···············7-19
Exterior care··················\
··················\
··················\
·············7-61
Flat tire (with spare tire) ··················\
··················\
············6-13
Changing tires··················\
··················\
··················\
········6-14
Compact spare tire ··················\
··················\
··················\
·6-19
Jack and tools ··················\
··················\
··················\
········6-13
Removing and storing the spare tire···········\
·················6-14\
Flat tire (with tire mobility kit) ··················\
··················\
·6-21
Floor mat anchor(s) ··················\
··················\
·················4-11\
6
Fluid Brakes fluid ··················\
··················\
··················\
···········7-28
Washer fluid··················\
··················\
··················\
···········7-29
Front passenger and rear seat 3-point system with combination locking retractor ··················\
··················\
·3-19
Front seat adjustment ··················\
··················\
··················\
·3-4
Fuel filler lid ··················\
··················\
··················\
············4-25
Fuel gauge··················\
··················\
··················\
················4-49
Fuel requirements ··················\
··················\
··················\
······1-3
Fuse/relay panel description ··················\
··················\
······7-55
Fuses ··················\
··················\
··················\
··················\
······7-51 Fuse/relay panel description ··················\
··················\
····7-55
Instrument panel fuse ··················\
··················\
··············7-52
Memory fuse··················\
··················\
··················\
··········7-52
Multi fuse ··················\
··················\
··················\
··············7-54
E
F

I5
Index
GaugeEngine temperature gauge ··················\
··················\
·······4-50
Fuel gauge ··················\
··················\
··················\
·············4-49
Glass antenna ··················\
··················\
··················\
·········4-117
Glove box··················\
··················\
··················\
···············4-111
Hazard warning flasher ··················\
··················\
··············4-80
Hazardous driving conditions ··················\
··················\
··· 5-33
Headrest ··················\
··················\
··················\
············3-8, 3-13
HEV powertrain ··················\
··················\
··················\
·········1-5
Highway driving ··················\
··················\
··················\
······5-36
Homelink mirror, see the Electric chromic mirror (ECM) with homeLink system ··················\
··················\
············4-37
Hood··················\
··················\
··················\
··················\
·······4-24
Horn ··················\
··················\
··················\
··················\
·······4-35
How to use this manual ··················\
··················\
···············1-2
Hybrid Kia Hybrid system ··················\
··················\
··················\
···H2
State of charge (SOC) ··················\
··················\
················H3
Optima hev energy flow ··················\
··················\
···H4, 4-53
The componets of hybrid vehicle ··················\
················H8
The air intake of hybrid battery ··················\
·················H13
The READY indicator ··················\
··················\
·············4-52
The ECO level display mode ··················\
··················\
·····H2 The EV MODE··················\
··················\
··················\
······4-62
The service indicator ··················\
··················\
···············4-62
The ECO GUIDE ··················\
··················\
··················\
··4-51
Indicator symbols on the instrument cluster ··················\
·1-6
Indicators and warnings ··················\
··················\
·············4-61
Inside rearview mirror ··················\
··················\
···············4-37
Instrument cluster ··················\
··················\
··················\
····4-47 Engine temperature gauge ··················\
··················\
·······4-50
Fuel gauge ··················\
··················\
··················\
·············4-49
Instrument panel illumination ··················\
··················\
·4-48
Odometer ··················\
··················\
··················\
···············4-48
Speedometer ··················\
··················\
··················\
··········4-48
Trip computer ··················\
··················\
··················\
········4-52
Warning and indicators ··················\
··················\
············4-61
Instrument panel fuse··················\
··················\
·················7-52\
Instrument panel illumination··················\
··················\
····4-48
Instrument panel overview··················\
··················\
···········2-3
Interior care··················\
··················\
··················\
··············7-66
Interior features··················\
··················\
··················\
······4-113 Aux, USB and iPod port··················\
··················\
········4-119
Clothes hanger ··················\
··················\
··················\
·····4-115
Cup holder ··················\
··················\
··················\
···········4-113
Digital clock ··················\
··················\
··················\
········4-115
Floor mat anchor(s) ··················\
··················\
···············4-116
Power outlet ··················\
··················\
··················\
········ 4-114
Sunvisor ··················\
··················\
··················\
···············4-113
I
G
H