2016 KIA Optima Hybrid engine

Introduction
21
Your new Kia vehicle is designed to
use only unleaded fuel having a
pump octane number ((R+M)/2) of
87 (Research Octane Number 91) or
higher. (Do not use methanol blend-
ed fuels.)
Your new vehicle is designed to
obtain maximum performance with
UNLEADED FUEL, as well as mini-
mize exhaust emissions and spark
plug fouling.
Never add any fuel system cleaning
agents to the fuel tank other than
what has been specified. (Consult an
authorized Kia dealer for details.)Gasoline containing alcohol andmethanol
Gasohol, a mixture of gasoline and
ethanol (also known as grain alco-
hol), and gasoline or gasohol con-
taining methanol (also known as
wood alcohol) are being marketed
along with or instead of leaded or
unleaded gasoline.
Pursuant to EPA regulations, ethanol
may be used in your vehicle.
Do not use gasohol containing more
than 10% ethanol, and do not use
gasoline or gasohol containing any
methanol. Ethanol provides less
energy than gasoline and it attracts
water, and it is thus likely to reduce
your fuel efficiency and could lower
your MPG results.
Methanol may cause drivability prob-
lems and damage to the fuel system,
engine control system and emission
control system.
Discontinue using gasohol of any
kind if drivability problems occur.
Vehicle damage or drivability prob-
lems may not be covered by the
manufacturer’s warranty if they result
from the use of: 1. Gasoline or gasohol containing
methanol.
2. Leaded fuel or leaded gasohol.
"E85" fuel is an alternative fuel com-
prised of 85 percent ethanol and 15
percent gasoline, and is manufac-
tured exclusively for use in Flexible
Fuel Vehicles. “E85” is not compati-
ble with your vehicle. Use of “E85”
may result in poor engine perform-
ance and damage to your vehicle's
engine and fuel system. Kia recom-
mends that customers do not use
fuel with an ethanol content exceed-
ing 10 percent.
✽ ✽

NOTICE
Your New Vehicle Limited
Warranty does not cover damage to
the fuel system or any performance
problems caused by the use of “E85”
fuel.
FUEL REQUIREMENTS
WARNING - Refueling
• Do not "top off" after the nozzle automatically shuts off.
Attempts to force more fuel
into the tank can cause fuel
overflow onto you and the
ground causing a risk of fire.
Always check that the fuel cap is installed securely to prevent
fuel spillage in the event of an
accident.

13
Introduction
Other fuels
Using fuels that contain Silicone (Si),
MMT (Manganese, Mn), Ferrocene
(Fe), and Other metalic additives,
may cause vehicle and engine dam-
age or cause misfiring, poor acceler-
ation, engine stalling, catalyst melt-
ing, clogging, abnormal corrosion,
life cycle reduction, etc.
Also, the Malfunction Indicator Lamp
(MIL) may illuminate.
✽ ✽

NOTICE
Damage to the fuel system or per-
formance problem caused by the use
of these fuels may not be covered by
your New Vehicle Limited
Warranty.
Gasoline containing MMT
Some gasoline contains harmful
manganese-based fuel additives
such as MMT (Methylcyclopentadi-
enyl Manganese Tricarbonyl).
Kia does not recommend the use of
gasoline containing MMT.
This type of fuel can reduce vehicle
performance and affect your emis-
sion control system.
The malfunction indicator lamp on
the cluster may come on.
Use of MTBE
Kia recommends avoiding fuels con-
taining MTBE (Methyl Tertiary Butyl
Ether) over 15.0% vol. (Oxygen
Content 2.7% weight) in your vehicle.
Fuel containing MTBE over 15.0%
vol. (Oxygen Content 2.7% weight)
may reduce vehicle performance and
produce vapor lock or hard starting.
Do not use methanol
Fuels containing methanol (wood alco-
hol) should not be used in your vehicle.
This type of fuel can reduce vehicle
performance and damage components
of the fuel system, engine control sys-
tem and emission control system.
CAUTION
Your New Vehicle Limited
Warranty may not cover damageto the fuel system and any per-formance problems that arecaused by the use of fuels con-taining methanol or fuels con-taining MTBE (Methyl TertiaryButyl Ether) over 15.0% vol.(Oxygen Content 2.7% weight.)

Introduction
41
Fuel Additives
Kia recommends that you use good
quality gasolines treated with deter-
gent additives such as TOP TIER
Detergent Gasoline, which helps
prevent deposit formation in the
engine. These gasolines will help the
engine run cleaner and enhance per-
formance of the Emission Control
System. For more information on
TOP TIER Detergent Gasoline,
please go to the website (www
.top-
tiergas.com).
For Customers who do not use TOP
TIER Detergent Gasoline regularly,
and have problems starting or the
engine does not run smoothly, addi-
tives that you can buy separately
may be added to the gasoline. If TOP
TIER Detergent Gasoline is not avail-
able, one bottle of additive added to
the fuel tank at 7,500 miles or every
engine oil change is recommended.
Additives are available from your
authorized Kia dealer along with
information on how to use them. Do
not mix other additives.
Operation in foreign countries
If you are going to drive your vehicle
in another country, be sure to:
Observe all regulations regarding registration and insurance.
Determine that acceptable fuel is available.

15
Introduction
No special break-in period is need-
ed. By following a few simple precau-
tions for the first 1,000 km (600
miles) you may add to the perform-
ance, economy and life of your vehi-
cle.
Do not race the engine.
While driving, keep your enginespeed (rpm, or revolutions per
minute) between 2,000 rpm and
4,000 rpm.
Do not maintain a single speed for long periods of time, either fast or
slow. Varying engine speed is
needed to properly break-in the
engine.
Avoid hard stops, except in emer- gencies, to allow the brakes to seat
properly.
Don't tow a trailer during the first 2,000 km (1,200 miles) of opera-
tion. By following a few simple precau-
tions for the first 1,000 km (600
miles) you may add to the perform-
ance, economy and life of your vehi-
cle.
Do not race the engine.
Avoid hard stops, except in emer-
gencies, to allow the brakes to seat
properly.
Don't tow a trailer during the first 2,000 km (1,200 miles) of opera-
tion.
VEHICLE BREAK-IN
PROCESS HEV POWERTRAIN

Your vehicle at a glance
Exterior overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Interior overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Instrument panel overview . . . . . . . . . . . . . . . . . . . 2-5
Engine compartment . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Trunk Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
2

25
Your vehicle at a glance
INSTRUMENT PANEL OVERVIEW
1. Instrument cluster .............................4-45
2. Light control / Turn signals.......4-87, 4-90
3. Wiper/Washer ...................................4-92
4. Horn ..................................................4-38
5. Steering wheel audio control ..........4-125
6. Auto cruise control ............................5-31
7. Driver’s air bag ..................................3-46
8. Steering wheel ..................................4-37
9. ENGINE START/STOP button ............5-6
10. Hazard ..............................................6-2
11. Audio .............................................4-124
12. Climate control system .................4-100
13. Shift lever ........................................5-12
14. Aux, USB and iPod
®port ..............4-126
15. Power outlet ..................................4-121
16. Seat warmer ...................................3-11
17. Passenger’s air bag ........................3-46
18. Glove box ......................................4-117
OTFH014002C
❈ The actual shape may differ from the illustration.

Your vehicle at a glance
62
ENGINE COMPARTMENT
1. Inverter coolant reservoir ..................7-27
2. Engine coolant reservoir ...................7-27
3. Windshield washer fluid reservoir .....7-32
4. Radiator cap .....................................7-30
5. Engine oil dipstick .............................7-25
6. Engine oil filler cap ...........................7-25
7. Brake fluid reservoir ..........................7-31
8. Air cleaner.........................................7-34
9. Fuse box ...........................................7-57
* The actual engine room in the vehicle may differ from the illustration.
OTFH075001N
■
■ 2.4L Engine

Safety features of your vehicle
63
Front seat adjustment - power
(if equipped)
The front seat can be adjusted by
using the control switch located on
the outside of the seat cushion.
Before driving, adjust the seat to the
proper position so as to easily con-
trol the steering wheel, pedals and
switches on the instrument panel.
When in operation, the power seat
consumes a large amount of electri-
cal power. To prevent unnecessary
charging system drain, don’t adjust
the power seat longer than neces-
sary while the engine is not running.
Forward and backward
Push the control switch forward or
backward to move the seat to the
desired position. Release the switch
once the seat reaches the desired
position.
OTF030006
CAUTION- Power seatadjustments
The power seating controlsfunction by electronic motor.Excessive operation may causedamage to the electrical equip-ment.
CAUTION- Power Seating
Do not operate two or morepower seat control switches atthe same time. Doing so maydamage the power seat motor orelectrical components.