2010 KIA Optima engine

Introduction
41
"E85" fuel is an alternative fuel com-
prised of 85 percent ethanol and 15 per-
cent gasoline, and is manufactured
exclusively for use in Flexible Fuel
Vehicles. “E85” is not compatible with
your vehicle. Use of “E85” may result in
poor engine performance and damage to
your vehicle's engine and fuel system.
KIA recommends that customers do not
use fuel with an ethanol content exceed-
ing 10 percent.A020104AUN
Use of MTBE
KIA recommends avoiding fuels contain-
ing 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.
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Do not use methanol
Fuels containing methanol (wood alco-
hol) should not be used in your vehicle.
This type of fuel can reduce vehicle per-
formance and damage components of
the fuel system.
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Gasolines for cleaner air
To help contribute to cleaner air, KIA rec-
ommends that you use gasolines treated
with detergent additives, which help pre-
vent deposit formation in the engine.
These gasolines will help the engine run
cleaner and enhance performance of the
Emission Control System.
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Operation in foreign countries
If you are going to drive your vehicle in
another country, be sure to:
Observe all regulations regarding reg-istration and insurance.
Determine that acceptable fuel is avail- able.
CAUTION
Your New Vehicle Limited Warrantymay not cover damage to the fuelsystem and any performance prob-lems that are caused by the use of fuels containing methanol or fuelscontaining MTBE (Methyl TertiaryButyl Ether) over 15.0% vol.(Oxygen Content 2.7% weight.)
CAUTION
Never use gasohol which containsmethanol. Discontinue use of anygasohol product which impairs dri-vability.
CAUTION
Your New Vehicle Limited Warrantydoes not cover damage to the fuelsystem or any performance prob-lems caused by the use of “E85” fuel.

15
Introduction
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No special break-in period is needed. By
following a few simple precautions for the
first 1,000 km (600 miles) you may add to
the performance, economy and life of
your vehicle.
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 emergen- cies, to allow the brakes to seat prop-
erly.
Don't let the engine idle longer than 3 minutes at one time.
Don't tow a trailer during the first 2,000 km (1,200 miles) of operation.
VEHICLE BREAK-IN PROCESS

Introduction
61
INDICATOR SYMBOLS ON THE INSTRUMENT CLUSTER
Seat belt warning light
High beam indicator
Turn signal indicator
ABS warning light
Parking brake & Brake fluid
warning light
Engine oil pressure warning light
ESC indicator ESC OFF indicator
Malfunction indicator light
Air bag warning light
Cruise indicator (if equipped)
Cruise SET indicator
(if equipped)
Immobilizer indicator
Low fuel level warning light
* For more detailed explanations, refer to “Instrument cluster” in section 4.
Charging system warning light
Low windshield washer fluid
level warning light (if equipped)
A050000BMG-EC
Door ajar warning light
Trunk ajar warning light
Tail light indicator (if equipped)
Front fog light indicator
(if equipped)
ESC
ESC OFF
ECO indicator (if equipped)ECO

2
Interior overview / 2-2
Instrument panel overview / 2-3
Engine compartment / 2-4
Your vehicle at a glance

Your vehicle at a glance
42
ENGINE COMPARTMENT
B030000AMG
OMG019003
■
■Gasoline Engine (2.4L)
1. Engine coolant reservoir ...................7-16
2. Engine oil filler cap............................7-15
3. Brake fluid reservoir ..........................7-19
4. Air cleaner .........................................7-24
5. Fuse box ...........................................7-43
6. Negative battery terminal ..................7-27
7. Positive battery terminal....................7-27
8. Auto transaxle oil dipstick* ................7-21
9. Radiator cap......................................7-17
10. Engine oil dipstick ...........................7-15
11. Windshield washer fluid reservoir ...7-23
12. Power steering fluid reservoir* ........7-20
* : if equipped
* The actual engine room in the vehicle may differ from the illustration.

25
Your vehicle at a glance
OMG079002N
1. Engine coolant reservoir ...................7-16
2. Engine oil filler cap............................7-15
3. Brake fluid reservoir ..........................7-19
4. Air cleaner .........................................7-24
5. Fuse box ...........................................7-43
6. Negative battery terminal ..................7-27
7. Positive battery terminal....................7-27
8. Auto transaxle oil dipstick* ................7-21
9. Radiator cap......................................7-17
10. Engine oil dipstick ...........................7-15
11. Windshield washer fluid reservoir ...7-23
12. Power steering fluid reservoir* ........7-20
* : if equipped
■ ■
Gasoline Engine (2.7L)
* The actual engine room in the vehicle may differ from the illustration.

39
Safety features of your vehicle
C010201AUN
Forward and backward
Push the control knob forward or back-
ward to move the seat to the desired
position. Release the knob once the seat
reaches the desired position.
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Seatback angle
Push the control knob forward or back-
ward to move the seatback to the desired
angle. Release the knob once the seat
reaches the desired position.
CAUTION
The power seat is driven by anelectric motor. Stop operatingonce the adjustment is complet-ed. Excessive operation maydamage the electrical equipment.
When in operation, the power seat consumes a large amount ofelectrical power. To preventunnecessary charging systemdrain, don’t adjust the power seatlonger than necessary while theengine is not running.
Do not operate two or more power seat control knobs at the sametime. Doing so may result inpower seat motor or electricalcomponent malfunction.
OMG039022OMG039023

Safety features of your vehicle
12
3
C010304AFD
Armrest (if equipped)
To use the armrest, pull it forward from
the seatback.
C010307AMG
Folding the rear seat (if equipped)
The rear seatbacks may be folded to
facilitate carrying long items or to
increase the luggage capacity of the
vehicle.
OMG035035
CAUTION
Make sure the engine is off, the
transaxle is in P and the parkingbrake is applied whenever load-ing or unloading cargo. Vehiclemay move if shift lever is inadver- tently moved to another position.
Be careful when loading cargo through the rear passenger seatsto prevent damage to the vehicleinterior.
When cargo is loaded through the rear passenger seats, ensure thecargo is properly secured to pre-vent it from moving while driving.Unsecured cargo in the passen-ger compartment can cause dam-age to the vehicle or injury to it’soccupants.
WARNING
The purpose of the fold-down rear
seatbacks is to allow you to carry
longer objects than could other-
wise be accommodated.
Never allow passengers to sit on
top of the folded down seatback
while the car is moving as this is
not a proper seating position and
no seat belts are available for use.
This could result in serious injury
or death in case of an accident or
sudden stop. Objects carried on the
folded down seatback should not
extend higher than the top of the
front seats. This could allow cargo
to slide forward and cause injury or
damage during sudden stops.