Page 369 of 394

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
Page 370 of 394
87
Specifications, Consumer information, Reporting safety defects
The vehicle identification number (VIN) is
the number used in registering your vehi-
cle and in all legal matters pertaining to
its ownership, etc.VIN label
The VIN is also on a plate attached to the
top of the dashboard. The number on the
plate can easily be seen through the
windshield from outside.The vehicle certification label attatched
on the driver’s side center pillar gives the
vehicle identification number (VIN).
VEHICLE CERTIFICATION
LABEL
OVQ076002N
VIN Label
VEHICLE IDENTIFICATION NUMBER (VIN)
OTF080001
OTF080002
Page 371 of 394
Specifications, Consumer information, Reporting safety defects
88
The tires supplied on your new vehicle
are chosen to provide the best perform-
ance for normal driving.
The tire label located on the driver's side
center pillar gives the tire pressures rec-
ommended for your vehicle.The engine number is stamped on the
engine block as shown in the drawing.
The refrigerant label is located on the
engine hood.
OMG055004
ENGINE NUMBER
OYFH081003NOTFH081005N
REFRIGERANT LABEL
TIRE SPECIFICATION AND
PRESSURE LABEL
Page 372 of 394
Kia HYBRID SYSTEM / H2
OPTIMA HYBRID ENERGY FLOW / H4
STARTING THE HYBRID VEHICLE / H6
THE COMPONENTS OF HYBRID VEHICLE / H8
Hybrid System Overview
Page 373 of 394

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
Page 374 of 394
H3
Total ECO Score display
If your ECO Level reaches its maximum,
your Total ECO Score automatically rises
by 1 point. Total ECO Score points are
saved and accumulate over time.
The image displayed on Total ECO Score
will change continuously, adding leaves
and flowers to a branch.
State of charge
The state of charge (SOC) gauge indi-
cates the hybrid battery's charge level. If
the SOC is near Low (L) level, the vehicle
automatically operates the engine to
charge the battery. However, if the serv-
ice indicator and MIL(Malfunction indica-
tor lamp) turn on when the State of
Charge(SOC) is near L, the vehicle
should be towed. Refer to the chapter 6.
OTFH042301C
OTFH040225N
WARNING
Never crank the engine for a pro-
longed time without the engine
starting. This could result in the
HEV battery becoming totally dis-
charged and is likely to be dam-
aged.
Page 375 of 394
H4
Kia hybrid system notifies the drivers of
energy flow in various operating modes.
Twelve Modes show drivers the current
operating condition.
Vehicle Stop
The mode means the vehicle at stop.
(No energy flow)
EV Propulsion
Electric power is used to move the vehi-
cle. (Battery ➞Wheel)
Power Assist
Electric and Engine power are used to
move the vehicle.
(Battery & Engine ➞ Wheel)
Engine Only Propulsion
Engine power is used to move the vehi-
cle. (Engine ➞Wheel)
Engine Generation
Vehicle is stopped with the Engine charg-
ing the hybrid battery.
(Engine ➞Battery)
OPTIMA HYBRID ENERGY FLOW
OTFH040214NOTFH040217N
OTFH040218NOTFH040215N
OTFH040221N
Page 376 of 394
H5
Regeneration
Hybrid battery is being charged by
regenerative braking.
(Wheel ➞Battery)
Engine Brake
The vehicle is being slowed by engine
compression.
(Wheel ➞Engine)
Power Reserve
Engine is both driving the vehicle and
charging the hybrid battery.
(Engine ➞ Wheel & Battery)
Engine Generation/Motor Drive
The vehicle is being slowed by engine
compression and regenerative brak-
ing. The hybrid battery is being
charged by regenerative braking.
(Engine ➞Battery ➞Wheel)
Engine Generation/Regeneration
The engine and regenerative brake sys-
tem charges the hybrid battery.
(Engine & Wheel ➞ Battery)
Engine Brake/Regeneration
The engine friction is used to vehicle
brake system and the regenerative brake
charges the hybrid battery.
(Wheel ➞Engine & Battery)
OTFH040219NOTFH040223N
OTFH040222NOTFH040216NOTFH040220N
OTFH040224N