oil temperature HYUNDAI I20 2023 Owners Manual

2-22
Vehicle information
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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
and dipstick 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 flowability). Lower viscosity engine oils can
provide better fuel economy and cold weather performance, however, higher
viscosity engine 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 viscosity from the chart.
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Temperature°C -30 -20 -10 0 10 20 30 40 50
(°F) -10 0 20 40 60 80 100 120
Smartstream G1.2/
G1.0 T-GDI/48V MHEV *
10W-20
Gasoline 1.4 *1
0/5W-20, 0/5W-30
10W-30
15W-40
20W-50
*1 : If mineral oil or semi-synthetic oil is used, it is a severe maintenance condition in terms of
engine oil change.
An engine oil displaying this American Petroleum Institute(API)
Certification Mark conforms to the International Lubricant
Specification Advisory Committee (ILSAC). It is recommended
to only use engine oils that uphold this API Certification Mark.

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Instrument cluster
Low engine oil (if equipped)
This warning message is displayed when
the engine oil level should be checked.
If this warning message is displayed,
check the engine oil level as soon as
possible and add engine oil as required.
Slowly pour the recommended oil little
by little into a funnel.
Use only the specified engine oil. (Refer
to "Recommended lubricants and
capacities" section in chapter 2.)
Do not overfill the engine oil. Make sure
the oil level is not above F (Full) mark on
the dipstick.
NOTICE
If the message is displayed
continuously after adding the engine
oil and travelling approximately 31~
62 mile (50~100 km) after the engine
warms up, we recommend that the
system be checked by a HYUNDAI
authorised repairer.
Engine has overheated
(if equipped)
This warning message is displayed
when the engine coolant temperature
is above 120°C (248°F). This means that
the engine is overheated and may be
damaged.
If your vehicle is overheated, refer to
“Overheating” section in chapter 8.
Check headlight (if equipped)
This warning message is displayed if the
headlamps are not operating properly.
In addition, if a specific lamp(turn signal
lamp etc.) is not operating properly, the
warning message according to a specific
lamp (turn signal lamp etc.) is displayed.
A corresponding bulb may need to be
replaced.
Make sure to replace the burned out
bulb with a new one of the same
wattage rating.
Check brake light (if equipped)
This warning message is displayed if the
stop lamps are not operating properly. A
lamp may need to be replaced.
Make sure to replace the burned out
bulb with a new one of the same
wattage rating.
Check Active Air Flap system (if
equipped)
This message is displayed in the
following situations:
- There is a malfunction with the
actuator flap
- There is a malfunction with the
actuator air flap controller
- The air flap does not open
When all of the above conditions are
fixed, the warning will disappear.

6-63
06
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When installing tyre chains, follow the
manufacturer’s instructions and mount
them as tightly possible. Drive slowly
(less than 20 mph (30 km/h)) with
chains installed. If you hear the chains
contacting the body or chassis, stop and
tighten them. If they still make contact,
slow down until the noise stops. Remove
the tyre chains as soon as you begin
driving on cleared roads.
When mounting snow chains, park
the vehicle on level ground away from
traffic. Turn on the vehicle Hazard
Warning Flasher and place a triangular
emergency warning device behind the
vehicle (if available). Always place the
vehicle in P (Park), apply the parking
brake and turn off the engine before
installing snow chains.
NOTICE
When using tyre chains:

[Wrong size chains or improperly
installed chains can damage your
vehicle’s brake lines, suspension,
body and wheels.

[Use SAE “S” class or wire chains.

[If you hear noise caused by chains
contacting the body, retighten the
chain to prevent contact with the
vehicle body.

[To prevent body damage, retighten
the chains after driving 0.3~0.6 miles
(0.5~1.0 km).

[Do not use tyre chains on vehicles
equipped with aluminium wheels. If
unavoidable, use a wire type chain.

[Use wire chains less than 0.47 in (12
mm) wide to prevent damage to the
chain’s connection.
Winter Precautions
Use high quality ethylene glycol 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 cooling
system, lubricates the water pump and
prevents freezing. Be sure to replace or
replenish your coolant in accordance
with the maintenance schedule. 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 temperatures affect battery
performance. Inspect the battery and
cables, as specified in the chapter
9. The battery charging level can be
checked by a HYUNDAI authorised
repairer or in a service station.
Change to “winter weight” oil if
necessary
In some regions during winter, it is
recommended to use the “winter
weight” oil with lower viscosity. For
further information, refer to the chapter
2. When you are not sure about a type
of winter weight oil, consult a HYUNDAI
authorised repairer.

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09
Follow Normal Maintenance Schedule if the vehicle is usually operated where none of
the following conditions apply.
If any of the following conditions apply, you must follow the Maintenance Under
Severe Usage Conditions.

[Repeated driving short distance of less than 5 miles (8 km) in normal temperature
or less than 10 miles (16 km) in freezing temperature

[Low speed driving for long distances

[Driving on rough, dusty, muddy, unpaved, graveled or salt-spread roads

[Driving in areas using salt or other corrosive materials or in very cold weather

[Driving in heavy dust condition

[Driving in heavy traffic areas

[Driving on an uphill, downhill, or mountain road repeatedly

[Towing a trailer or using a camper, or driving with loads on the roof

[Driving as a patrol car, taxi, other commercial use of vehicle towing

[Frequently driving under high speed or rapid acceleration/deceleration

[Frequently driving in stop-and-go condition

[Engine oil usage which is not recommended (Mineral type, Semi-synthetic, Lower
grade spec, etc.)
If your vehicle is operated under the above conditions, you should inspect, replace or
refill more frequently than Normal Maintenance Schedule which is provided in your
Service Booklet.
i Information

9-13
09
ENGINE OIL
Engine oil is used for lubricating,
cooling, and operating various hydraulic
components in the engine. Engine oil
consumption whilst driving is normal,
and it is necessary to check and refill the
engine oil regularly. Also, check and refill
the oil level within the recommended
maintenance schedule to prevent
deterioration of oil performance.
Check the engine oil following the below
procedure.
Checking the engine oil level
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„Smartstream G1.2
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1. Follow all of the oil manufacturer’s
precautions.
2. Be sure the vehicle is on the level
ground in P (Park) with the parking
brake set and the wheels blocked.
3. Turn the engine on and warm
the engine up until the coolant
temperature reaches a constant
normal temperature.
4. Turn the engine off, remove the oil
filler cap and pull the dipstick out.
Wait for 15 minutes for the oil to
return to the oil pan.
5. Wipe the dipstick clean and re-insert
it fully.
6. Pull the dipstick out again and check
the level. The level should be between
the F-L line.

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09
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„ Example
❈ The actual battery label in the vehicle
may differ from the illustration.
1. AGM50L-DIN : The HYUNDAI model
name of battery
2. 12V : The nominal voltage
3. 50Ah (20HR) : The nominal capacity
(in Ampere hours)
4. RC 80 : The nominal reserve capacity
(in min.)
5. CCA 560A : Cold-test current in
amperes by SAE/EN
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Your vehicle has a maintenance-free,
calcium-based battery.

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over a short time (for example, the
headlights or interior lights were on
whilst the vehicle was not in use),
recharge it by slow charging (trickle)
for 10 hours.

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because of high electrical load whilst
the vehicle is being used, recharge it
at 20-30A for two hours.
WARNING
When recharging the battery, observe
the following precautions:

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recharging the battery, turn off all
accessories and stop the engine.

[Do not allow cigarettes, sparks, or
flame near the battery.

[Wear eye protection when checking
the battery during charging.

[The battery must be removed from
the vehicle and placed in an area with
good ventilation.

[Watch the battery during charging,
and stop or reduce the charging
rate if the battery cells begin
gassing (boiling) violently or if the
temperature of the electrolyte of any
cell exceeds 49°C (120°F).

[The negative battery cable must be
removed first and installed last when
the battery is disconnected.

[Disconnect the battery charger in the
following order.
1. Turn off the main battery charger
switch.
2. Unhook the negative clamp from
the negative battery terminal.
3. Unhook the positive clamp from
the positive battery terminal.

9-81
09
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NOTICE

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compartment including high pressure
water washing may cause the failure
of electrical circuits located in the
engine compartment.

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to come in contact with electrical/
electronic components inside the
vehicle as this may damage them.
NOTICE
Matte paint finish vehicle
(if equipped)
Automatic car wash which uses
rotating brushes should not be used
as this can damage the surface of your
vehicle. A steam cleaner which washes
the vehicle surface at high temperature
may result the oil to adhere and leave
stains that is difficult to remove.
Use a soft cloth (e.g. microfiber towel
or sponge) when washing your vehicle
and dry with a microfiber towel. When
you handwash your vehicle, you should
not use a cleaner that finishes with
wax. If the vehicle surface is too dirty
(sand, dirt, dust, contaminant, etc.),
clean the surface with water before
washing the car.
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Wax the vehicle when water will no
longer bead on the paint.
Always wash and dry the vehicle
before waxing. Use a good quality
liquid or paste wax, and follow the
manufacturer’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.
NOTICE

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a dry cloth will scratch the finish.

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cleaners, or strong detergents
containing highly alkaline or caustic
agents on chrome-plated or anodized
aluminium parts. This may result in
damage to the protective coating
and cause discolouration or paint
deterioration.
NOTICE
Matte paint finish vehicle
(if equipped)
Do not use any polish protector such as
a detergent, an abrasive and a polish.
In case wax is applied, remove the wax
immediately using a silicon remover
and if any tar or tar contaminant is on
the surface, use a tar remover to clean.
However, be careful not to apply too
much pressure on the painted area.