2020 KIA OPTIMA oil

Driving your vehicle
122
5
(Continued)
• There are more than two lane
markers.
• The lane marker is very thick or thin.
• The lane marker is not visible due to snow, rain, stain, a puddle or
other factors.
• A shadow is on the lane marker because of a median strip,
guardrail, noise barriers or other
objects.
• When the lane markers are com- plicated or a structure substitutes
for the lines such as a construction
area.
• There are crosswalk signs or other symbols on the road.
• The lane suddenly disappears such as at the intersection.
• The lane marker in a tunnel is cov- ered with dirt or oil, etc. (Continued)(Continued)
  When external conditions inter-
vene
• The brightness outside changes suddenly when entering/exiting a
tunnel or passing under a bridge.
• The headlamps are not on at night or in a tunnel, or light level is low.
• There is a boundary structure in the roadway.
• The light reflects from the water on the road.
• When light shines brightly from behind the vehicle.
• The distance from the vehicle ahead is very short or the vehicle
ahead covers up the lane marker.
• You drive on a steep grade or a sharp curve.
• The vehicle vibrates heavily.
• The temperature near inside mir- ror is very high due to direct sun
light and etc. (Continued)(Continued)
  When front visibility is poor
• The lens or windshield is covered by foreign materials.
• The sensor cannot detect the lane because of fog, heavy rain or snow.
• The windshield is fogged by humid air in the vehicle.
• Putting something on the crash pad and etc.
WARNING
The Lane Keeping Assist sys-
tem is a system to help prevent
the driver from leaving the lane.
However, the driver should not
solely rely on the system but
always take the necessary
actions for safe driving prac-
tices.

5135
Driving your vehicle
Driving in flooded areas
Avoid driving through flooded areas
unless you are sure the water is no
higher than the bottom of the wheel
hub. Drive through any water slowly.
Allow adequate stopping distance
because brake performance may be
affected.
After driving through water, dry the
brakes by gently applying them sev-
eral times while the vehicle is moving
slowly.
Highway driving
Tires
Adjust the tire inflation pressures to
specification. Low tire inflation pres-
sures will result in overheating and
possible failure of the tires.
Avoid using worn or damaged tires
which may result in reduced traction
or tire failure.
Never exceed the maximum tire
inflation pressure shown on the tires.
Fuel, engine coolant and engine oil
High speed travel consumes more
fuel than urban motoring. Do not for-
get to check both the engine coolant
and engine oil.
Drive belt
A loose or damaged drive belt may
result in overheating of the engine.
WARNING- Under/overinflated tires
Always check the tires for proper
inflation before driving.
Underinflated or overinflated
tires can cause poor handling,
loss of vehicle control, and sud-
den tire failure leading to acci-
dents, injuries, and even death.
For proper tire pressures, refer to
“Tires and wheels” in chapter 9.
WARNING- Tire tread
Always check the tire tread
before driving your vehicle.
Worn-out tires can result in loss
of vehicle control. Worn-out tires
should be replaced as soon as
possible. For further information
and tread limits, refer to "Tires
and wheels" in chapter 8.

5137
Driving your vehicle
Use high quality ethylene gly-
col coolant
Your vehicle is delivered with high
quality ethylene glycol coolant in the
cooling system. It is the only type of
coolant that should be used because
it helps prevent corrosion in the cool-
ing system, lubricates the water
pump and prevents freezing. Be sure
to replace or replenish your coolant
in accordance with the maintenance
schedule in chapter 8. Before winter,
have your coolant tested to assure
that its freezing point is sufficient for
the temperatures anticipated during
the winter.
Check battery and cables
Winter puts additional burdens on
the battery system. Visually inspect
the battery and cables as described
in chapter 8. The level of charge in
your battery can be checked by an
authorized Kia dealer or a service
station.
Change to "winter weight" oil
if necessary
In some climates it is recommended
that a lower viscosity "winter weight"
oil be used during cold weather. See
chapter 9 for recommendations. If
you aren't sure what weight oil you
should use, consult an authorized
Kia dealer.

What to do in an emergency
46
IF THE ENGINE WILL NOT START
If engine doesn't turn over or
turns over slowly
1. If your vehicle has an automatictransmission, be sure the shift
lever is in N (Neutral) or P (Park)
and the emergency brake is set.
2. Check the battery connections to be sure they are clean and tight.
3. Turn on the interior light. If the light dims or goes out when you oper-
ate the starter, the battery is dis-
charged.
4. Check the starter connections to be sure they are securely tight-
ened.
5. Do not push or pull the vehicle to start it. See instructions for "Jump
starting".
If engine turns over normally
but does not start
1. Check the fuel level.
2. With the ignition switch in theLOCK position, check all connec-
tors at the ignition coils and spark
plugs. Reconnect any that may be
disconnected or loose.
3. Check the fuel line in the engine compartment.
4. If the engine still does not start, call an authorized Kia dealer or
seek other qualified assistance.
WARNING - Push/
pull start
Do not push or pull the vehicle
to start it. Push or pull starting
may cause the catalytic con-
verter to overload and create a
fire hazard.

Maintenance
7
Engine compartment . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Maintenance services . . . . . . . . . . . . . . . . . . . . . . . . 7-4
• Owner’s responsibility . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
• Owner maintenance precautions . . . . . . . . . . . . . . . . . 7-5
Owner maintenance . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
• Owner maintenance schedule . . . . . . . . . . . . . . . . . . . 7-6
Scheduled maintenance service. . . . . . . . . . . . . . . . 7-8
Explanation of scheduled maintenance items . . . 7-14
Checking fluid levels . . . . . . . . . . . . . . . . . . . . . . . 7-17
Engine oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-18
• Checking the engine oil level . . . . . . . . . . . . . . . . . . . 7-18
• Changing the engine oil and filter . . . . . . . . . . . . . . . 7-19
Engine maintenance mode (for plug-in Hybrid). . 7-20
• Starting Engine Maintenance Mode . . . . . . . . . . . . . 7-20
• Stopping Engine Maintenance Mode. . . . . . . . . . . . . 7-20
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-21\
• Checking the coolant level . . . . . . . . . . . . . . . . . . . . . 7-21
• Engine coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22
• Inverter coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22
• Recommended coolant . . . . . . . . . . . . . . . . . . . . . . . . 7-23
• Changing the coolant . . . . . . . . . . . . . . . . . . . . . . . . . 7-24
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-25
• Checking the brake fluid level . . . . . . . . . . . . . . . . . . 7-25
Washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-26
• Checking the washer fluid level . . . . . . . . . . . . . . . . . 7-26
Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-27
• Checking the parking brake. . . . . . . . . . . . . . . . . . . . 7-27
Air cleaner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-28
• Filter replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-28
Climate control air filter . . . . . . . . . . . . . . . . . . . . 7-30
• Filter inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-30
Wiper blades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-32
• Blade inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-32
• Blade replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-32
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-\
36
• For best battery service . . . . . . . . . . . . . . . . . . . . . . . 7-36
• Recharging the battery . . . . . . . . . . . . . . . . . . . . . . . . 7-37
• Reset items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-38\
Tires and wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-39
• Tire care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
7-39
• Recommended cold tire inflation pressures . . . . . . . 7-39
• Tire pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-40
• Checking tire inflation pressure. . . . . . . . . . . . . . . . . 7-40
• Tire rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-41
• Wheel alignment and tire balance . . . . . . . . . . . . . . . 7-42
• Tire replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-43
• Wheel replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-43
• Tire traction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-44
• Tire maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-44
• Tire sidewall labeling . . . . . . . . . . . . . . . . . . . . . . . . . 7-44

73
Maintenance
ENGINE COMPARTMENT
OJFHP078161
■ ■Gasoline Engine (Nu 2.0L GDI)❈ The actual engine compartment in the vehicle may differ from the illustration. 1. Engine coolant reservoir
2. Engine oil filler cap
3. Engine oil dipstick
4. Brake fluid reservoir
5. Air cleaner
6. Fuse box
7. Inverter coolant reservoir
8. Radiator cap
9. Windshield washer fluid reservoir

Maintenance
67
OWNER MAINTENANCE
The following lists are vehicle checks
and inspections that should be per-
formed by the owner or an author-
ized Kia dealer at the frequencies
indicated to help ensure safe,
dependable operation of your vehi-
cle.
Any adverse conditions should be
brought to the attention of your deal-
er as soon as possible.
These Owner Maintenance Checks
are generally not covered by war-
ranties and you may be charged for
labor, parts and lubricants used.Owner maintenance schedule
When you stop for fuel:
Check the engine oil level.
Check the coolant level in coolantreservoir.
Check the windshield washer fluid level.
Look for low or under-inflated tires.
While operating your vehicle:
Note any changes in the sound of the exhaust or any smell of
exhaust fumes in the vehicle.
Check for vibrations in the steering wheel. Notice any increased steer-
ing effort or looseness in the steer-
ing wheel, or change in its straight-
ahead position.
Notice if your vehicle constantly turns slightly or “pulls” to one side
when traveling on smooth, level
roads.
When stopping, listen and check for unusual sounds, pulling to one
side, increased brake pedal travel
or “hard-to-push” brake pedal.
If any slipping or changes in the operation of your transmission
occurs, check the transmission
fluid level.
Check the automatic transmission P (Park) function.
Check the parking brake.
Check for fluid leaks under your vehicle (water dripping from the air
conditioning system during or after
use is normal).
WARNING- Hot coolant
Be careful when checking your
engine coolant level when the
engine is hot. Scalding hot
coolant and steam may blow
out under pressure.
WARNING
When you open the engine
hood, turn the Hybrid system
off. If not, it may result in death
or serious injury because of the
high voltage flow.

79
Maintenance
Normal Maintenance Schedule - Non Turbo Model
The following maintenance services must be performed to ensure good emission control and performance.
Keep receipts for all vehicle emission services to protect your warranty. Where both mileage and time are shown, the
frequency of service is determined by whichever occurs first.
Number of months or driving distance, whichever comes first
Months1224364860728496108120132144156168180
Miles×1,0007.51522.530 37.5 45 52.5 60 67.5 75 82.5 90 97.5 105 112.5
Km×1,00012 24 36 48 60 72 84 96 108 120 132 144 156 168 180
Engine oil and engine oil
filterNu 2.0L GDIRRRRRRRRRRRRRRR
Fuel additives *1Add every 12,000 km (7,500 miles) or 12 months
Air cleaner filterIIIRIIIRIIIRIII
Spark plugsNu 2.0L GDIReplace every 156,000 km (97,500 miles)
Rotate tiresRotate every 12,000 km (7,500 miles)
Climate control air filterRRRRRRRRRRRRRRR
Vacuum hoseIIIIIIIIIIIIIII
Coolant (Engine/Inverter)At first, replace at 192,000 km (120,000 miles) or 10 years,
after that, replace every 48,000 km (30,000 miles) or 24 months
MAINTENANCE INTERVALS
MAINTENANCE
ITEM
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.
*
1: If TOP TIER Detergent Gasoline is not available, one bottle of additive is recommended. Additives are available from your authorized Kia dealer along with information on how to use them. Do not mix other additives.