2017 KIA OPTIMA PLUG-IN HYBRID engine

• 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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3BOHF
GPS
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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
(BTPMJOF
FOHJOF
/V

(%*

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