2015 KIA Optima engine

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IntroductionHow to use this manual / Fuel requirements / Vehicle break-in process
Your vehicle at a glance
Exterior overview / Interior overview / Instrument panel overview / Engi\
ne compartment
Safety features of your vehicle
Seats / Seat belts / Child restraint system / Air bag
Features of your vehicleKeys / Door locks / Trunk / Windows / Hood / Fuel filler lid / Sunroof / Steering wheel / Mirrors / Instrumentcluster / Lighting / Wipers & Washers / Climate control system / Audio system / Etc.
Driving your vehicleBefore driving / Engine start/stop button / Transaxle / Brake system / Cruise control system /
Active ECO system / Winter driving / Vehicle load limit / Etc.
What to do in an emergencyRoad warning / Emergency while driving / Emergency starting / Engine overheat / Flat tire / Towing / Etc.
MaintenanceEngine compartment / Maintenance service / Engine oil / Engine coolant /\
Brake fluid / Washer fluid /
Parking brake / Air cleaner / Wiper blades / Battery / Tire and wheels / Fuses / Etc.
Specifications & Consumer information
Index
table of contents

13
Introduction
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.
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.
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.

Introduction
41
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
alcohol) should not be used in your
vehicle. This type of fuel can reduce
vehicle performance and damage
components of the fuel system.
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
available, one bottle of additive
added to the fuel tank at 7,500 miles
or every engine oil change is recom-
mended. Additives are available from
your authorized Kia dealer along with
information on how to use them. Do
not mix other additives.
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.)

15
Introduction
Operation in foreign countries
If you are going to drive your vehicle
in another country, be sure to:
Observe all regulations regardingregistration and insurance.
Determine that acceptable fuel is available. 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 engine
speed (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.
VEHICLE BREAK-IN PROCESS

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

25
Your vehicle at a glance
INSTRUMENT PANEL OVERVIEW
1. Instrument cluster .............................4-58
2. Light control / Turn signals...4-100, 4-103
3. Wiper/Washer .................................4-105
4. Horn ..................................................4-43
5. Steering wheel audio control ..........4-149
6. Auto cruise control ............................5-34
7. Driver’s air bag ..................................3-47
8. Steering wheel ..................................4-42
9. Ignition switch or ENGINE START/STOP button .....5-6, 5-8
10. Digital clock ...................................4-144
11. Hazard ..............................................6-2
12. Audio .............................................4-148
13. Climate control system ......4-113, 4-122
14. Shift lever ........................................5-14
15. Aux, USB and iPod
®port ..............4-150
16. Power outlet ..................................4-143
17. Seat warmer ...................................3-11
18. Passenger’s air bag ........................3-47
19. Glove box ......................................4-139
OTF015002N
❈ The actual shape may differ from the illustration.

Your vehicle at a glance
62
ENGINE COMPARTMENT
1. Engine coolant reservoir ...................7-31
2. Engine oil filler cap ...........................7-29
3. Brake fluid reservoir ..........................7-34
4. Air cleaner.........................................7-37
5. Fuse box ...........................................7-61
6. Positive battery terminal ...................7-44
7. Negative battery terminal..................7-44
8. Windshield washer fluid reservoir .....7-35
9. Radiator cap .....................................7-32
10. Engine oil dipstick ...........................7-29
OTF074002N/OYF071200N
* The actual engine room in the vehicle may differ from the illustration.
■
■
2.4L Engine
■
■ 2.0L Engine

Safety features of your vehicle
63
Lumbar support (for driver’s seat)
Press the front portion of the switch to
increase support, or the rear portion
of the switch to decrease support.
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.
OTF030005
WARNING
The power seat is operable with
the ignition OFF.
Therefore, children should
never be left unattended in the
vehicle.
CAUTION
The power seat is driven by anelectric motor. Stop operatingonce the adjustment is com-pleted. Excessive operationmay damage the electricalequipment.
When in operation, the power seat consumes a large amountof electrical power. To preventunnecessary charging systemdrain, don’t adjust the powerseat longer than necessarywhile the engine is not running.
Do not operate two or more power seat control switches atthe same time. Doing so mayresult in power seat motor orelectrical component malfunc-tion.