engine KIA OPTIMA PLUG-IN HYBRID 2017 Owners Manual

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CAUTION
•Water washing in the engine com‐partment including high pressurewater washing may cause the fail‐ure of electrical circuits located inthe engine compartment.
•Never allow water or other liquidsto come in contact with electrical/electronic components inside thevehicle as this may damage them.
Waxing
Wax the vehicle when water will no lon‐
ger bead on the paint. Always wash and dry the vehicle before
waxing. Use a good quality liquid or
paste wax, and follow the manufactur‐
er’s instructions. Wax all metal trim to protect it and to maintain its luster.
Removing oil, tar, and similar materials
with a spot remover will usually strip
the wax from the finish. Be sure to re- wax these areas even if the rest of the
vehicle does not yet need waxing.
Do not apply wax on embossed unpain‐
ted unit, as it may tarnish the unit.
CAUTION
•Wiping dust or dirt off the bodywith a dry cloth will scratch thefinish.
•Do not use steel wool, abrasivecleaners, acid detergents or strongdetergents containing high alkalineor caustic agents on chrome-plat‐ed or anodized aluminum parts.This may result in damage to theprotective coating and cause dis‐coloration or paint deterioration.
Finish damage repair
Deep scratches or stone chips in the
painted surface must be repaired
promptly. Exposed metal will quickly rust and may develop into a major re‐
pair expense.
NOTICE
If your vehicle is damaged and re‐
quires any metal repair or replace‐
ment, be sure the body shop applies
anti-corrosion materials to the parts
repaired or replaced.
Bright-metal maintenance
• To remove road tar and insects, use a tar remover, not a scraper or other
sharp object.
• To protect the surfaces of bright- metal parts from corrosion, apply a
coating of wax or chrome preserva‐
tive and rub to a high luster.
• During winter weather or in coastal areas, cover the bright metal parts
with a heavier coating of wax or preservative. If necessary, coat the
parts with non-corrosive petroleum
jelly or other protective compound.
Maintenance
9-86

EMISSION CONTROL SYSTEM (IF EQUIPPED)
The emission control system of your vehicle is covered by a written limited
warranty. Please see the warranty in‐
formation contained in the Warranty & Maintenance book in your vehicle.
Your vehicle is equipped with an emis‐
sion control system to meet all applica‐
ble emission regulations.
There are three emission control sys‐ tems, as follows. 1. Crankcase emission control system
2. Evaporative emission control sys‐ tem
3. Exhaust emission control system
In order to assure the proper function
of the emission control systems, it is
recommended that you have your vehi‐ cle inspected and maintained by an au‐
thorized Kia dealer in accordance with
the maintenance schedule in this man‐ ual.
Caution for the Inspection and Mainte‐nance Test (With Electronic StabilityControl (ESC) system)
•To prevent the vehicle from misfiringduring dynamometer testing, turnthe Electronic Stability Control (ESC)system off by pressing the ESCswitch. •
After dynamometer testing is com‐pleted, turn the ESC system back onby pressing the ESC switch again.
1. Crankcase emission control
system
The positive crankcase ventilation sys‐
tem is employed to prevent air pollu‐ tion caused by blow-by gases being
emitted from the crankcase. This sys‐
tem supplies fresh filtered air to the crankcase through the air intake hose.
Inside the crankcase, the fresh air mix‐
es with blow-by gases, which then pass through the PCV valve into the induc‐
tion system.
2. Evaporative emission control
system
The Evaporative Emission Control Sys‐
tem is designed to prevent fuel vapors from escaping into the atmosphere.
Canister
Fuel vapors generated inside the fuel
tank are absorbed and stored in the on‐ board canister. When the engine is run‐
ning, the fuel vapors absorbed in the
canister are drawn into the surge tank through the purge control solenoid
valve.
Purge control solenoid valve (PCSV)
The purge control solenoid valve is con‐ trolled by the Engine Control Module
(ECM); when the engine coolant tem‐
perature is low during idling, the PCSV closes so that evaporated fuel is not
taken into the engine. After the engine
warms up during ordinary driving, the PCSV opens to introduce evaporated
fuel to the engine.
3. Exhaust emission control
system
The Exhaust Emission Control System
is a highly effective system which con‐
trols exhaust emissions while maintain‐
ing good vehicle performance.
Vehicle modifications
This vehicle should not be modified.
Modification of your vehicle could affect
its performance, safety or durability and may even violate governmental
safety and emissions regulations.
In addition, damage or performance
problems resulting from any modifica‐ tion may not be covered under warran‐
ty.

9-91
9
Maintenance

• If you use unauthorized electronicdevices, it may cause the vehicle to
operate abnormally, wire damage, battery discharge and fire. For your
safety, do not use unauthorized elec‐
tronic devices.
Engine exhaust gas precautions
(carbon monoxide)
• Carbon monoxide can be present with other exhaust fumes. Therefore, if
you smell exhaust fumes of any kind inside your vehicle, have it inspected
and repaired immediately. If you ever
suspect exhaust fumes are coming
into your vehicle, drive it only with all
the windows fully open. Have your vehicle checked and repaired immedi‐
ately.
WARNING
nExhaust
Engine exhaust gases contain carbonmonoxide (CO). Though colorless andodorless, it is dangerous and couldbe lethal if inhaled. Follow the in‐structions on this page to avoid COpoisoning.
• 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 catalytic
converters (if equipped)
WARNING
nFire
(Continued)
(Continued)
•A hot exhaust system can igniteflammable items under your vehi‐cle. Do not park the vehicle over ornear flammable objects, such asgrass, vegetation, paper, leaves,etc.
•The exhaust system and catalyticsystem are very hot while the en‐gine is running or immediately af‐ter the engine is turned off. Keepaway from the exhaust systemand catalytic, you may get burned.Also, do not remove the heat sinkaround the exhaust system, donot seal the bottom of the vehicleor do not coat the vehicle for cor‐rosion control. It may present afire risk under certain conditions.
Your vehicle is equipped with a catalytic
converter emission control device.
Therefore, the following precautions must be observed: • Make sure to refuel your vehicle ac‐ cording to the L

• 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 mi‐
nutes or more).
• Do not modify or tamper with any part of the engine or emission control
system. All inspections and adjust‐ ments must be made by an author‐
ized Kia dealer.
• Avoid driving with an extremely low fuel level. Running out of fuel could
cause the engine to misfire, damag‐
ing 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.

9-93
9
Maintenance

Dimensions............................................................................... 10-02
Engine....................................................................................... 10-03
Gross vehicle weight...............................................................10-04
Luggage volume...................................................................... 10-05
Air conditioning system......................................................... 10-06
Bulb wattage........................................................................... 10-07
Tires and wheels..................................................................... 10-09
Recommended lubricants and capacities........................... 10-11Recommended SAE viscosity number............................. 10-12
Vehicle identification number (VIN)..................................... 10-13
Vehicle certification label....................................................... 10-14
Tire specification and pressure label................................... 10-15
Engine number........................................................................ 10-16
Air conditioner compressor label..........................................10-17
Refrigerant label..................................................................... 10-18
Declaration of conformity..................................................... 10-19
Specifications & Consumer information

10

ENGINE
ItemGasoline
2.0 GDI HEV
Displacement 1,999 (121.99)
[cc (cu. in)]
Bore x Stroke 81.0 x 97.0 (3.19 x 3.81)
[mm (in.)]
Firing order 1-3-4-2
No. of cylinders 4. In-line


10-03
10
Specifications & Consumer information

RECOMMENDED LUBRICANTS AND CAPACITIES
LubricantVolumeClassification
Engine oil *1
*2
(drain and refill)
Recommends
4.1 l
(4.33 US qt.) ACEA A5 or above / 5W-30 (C)
*1
Automatic transaxle fluid 6.0 l
(6.34 US qt.) - ATF SP-IV
(Recommended SK ATF SP-IV, MICHANG ATF SP-IV, NOCA ATF SP-IV)
Coolant 6.744 l
(7.12 US qt.) Mixture of antifreeze and water
(Ethylene glycol base coolant for aluminum radiator)
Inverter coolant 3.13 l
(3.30 US qt.) Mixture of antifreeze and water
(Ethylene glycol base coolant for aluminum radiator)
Brake/Clutch fluid 0.49 ± 0.02 l
(0.52 ± 0.02 US qt.) DOT 3 or DOT 4
Fuel Hybrid
60 l
(63.42 US qt.) Refer to L

Recommended SAE viscosity number
CAUTION
Always be sure to clean the area around any filler plug, drain plug, or dipstick before checking or draining any lubricant.This is especially important in dusty or sandy areas and when the vehicle is used on unpaved roads. Cleaning the plug anddipstick areas will prevent dirt and grit from entering the engine and other mechanisms that could be damaged.
Engine oil viscosity (thickness) has an effect on fuel economy and cold weather operating (engine start and engine oil flowabil‐
ity). Lower viscosity engine oils can provide better fuel economy and cold weather performance, however, higher viscosity en‐ gine oils are required for satisfactory lubrication in hot weather.
Using oils of any viscosity other than those recommended could result in engine damage. 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 vis‐ cosity from the chart.
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*1 : For better fuel economy, it is recommended to use the engine oil of a viscosity grade SAE 5W-30 (ACEA A5). However, if
the engine oil is not available in your country, select the proper engine oil using the engine oil viscosity chart.

Specifications & Consumer information
10-12

ENGINE NUMBER
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The engine number is stamped on the
engine block as shown in the drawing.
Specifications & Consumer information
10-16