2021 HYUNDAI SONATA LIMITED engine oil

Foreword
1-8
VeHIcle data colle ct I on
and eV ent d
a
ta
r

ecorders
This vehicle is equipped with an event
data recorder (EDR). The main purpose
of an EDR is to record, in certain crash
or near crash-like situations, such as
an air bag deployment or hitting a
road obstacle, data that will assist in
understanding how a vehicle’s systems
performed. The EDR is designed to
record data related to vehicle dynamics
and safety systems for a short period of
time, typically 30 seconds or less. The
EDR in this vehicle is designed to record
such data as:
• How various systems in your vehicle
were operating;
• Whether or not the driver and
passenger safety belts were buckled/
fastened;
• How far (if at all) the driver was
depressing the accelerator and/or
brake pedal; and,
• How fast the vehicle was traveling.
This data can help provide a better
understanding of the circumstances in
which crashes and injuries occur. NOTE:
EDR data is recorded by your vehicle
only if a non-trivial crash situation
occurs; no data is recorded by the EDR
under normal driving conditions and
no personal data (e.g., name, gender,
age, and crash location) are recorded.
However, other parties, such as law
enforcement, could combine the
EDR data with the type of personally
identifying data routinely acquired
during a crash investigation.
To read data recorded by an EDR,
special equipment is required, and
access to the vehicle or the EDR is
needed. In addition to the vehicle
manufacturer, other parties, such as
law enforcement, that have the special
equipment, can read the information if
they have access to the vehicle or the
EDR.
WARNING
CALIFORNIA PROPOSITION 65
WARNING
Items contained in motor vehicles or
emitted from them are known to the
State of California to cause cancer and
birth defects or reproductive harm.
These include:
• Gasoline and its vapors
• Engine exhaust
• Used engine oil
• Interior passenger compartment
components and materials
• Component parts which are subject
to heat and wear
In addition, battery posts, terminals and
related accessories contain lead, lead
compounds and other chemicals known
to the State of California to cause
cancer and reproductive harm.
For more information go to
https://www.p65warnings.ca.gov/
passenger-vehicle

2-6
Vehicle Information
„„Smartstream G1.6 T-GDi
„„Smartstream G2.5 GDi
The actual engine room in the vehicle may differ from the illustration.ODN8089103/ ODN8089048L
EnginE ComPartm E nt
1. Engine coolant reservoir .......................8-21
2.
Br
ake fluid reservoir .............................8-24
3.

Air cleaner
............................................. 8-26
4.
E

ngine oil dipstick ................................ 8-195.
E ngine oil filler cap ................................
8-19
6.
Windshield w
asher fluid reservoir .......8-25
7.
F

use box ................................................8-48
8.

Ba
ttery
....................................................8-

31

02
2-11
rECommE n DED lu B ri Cant s an D Ca PaC iti E s
To help achieve proper engine and powertrain performance and durability, use only
lubricants of the proper quality. The correct lubricants also help promote engine
efficiency that results in improved fuel economy.
These lubricants and fluids are recommended for use in your vehicle.
LubricantVolumeClassification
Engine oil
*1
(drain and refill) Smartstream
G1.6 T-GDi 5.07
US qt. (4.8 ℓ)
S

AE 0W-20, API SN PLUS/SP or
ILSAC GF-6
Smartstream G2.5 GDi 5.49 US qt. (5.2 ℓ)
Automatic transmission fluid 6.89 US qt. (6.5ℓ) MICHANG ATF SP-IV, SK ATF SP IV,
NOCA ATF SP-IV, S-oil ATF SP-IV
HYUNDAI genuine ATF SP-IV
or other brands meeting the
above specification approved by
HYUNDAI Motor Co.
Coolant Smartstream
G1.6 T-GDi 4.76 US qt. (4.5 ℓ)
Mixture of antifreeze and distilled
water (Ethylene glycol base
coolant for aluminum radiator)
Smartstream
G2.5 GDi 5.49 US qt. (5.2 ℓ)
Brake fluid
*20.74 ~ 0.85 US qt. (0.7 ~ 0.8 ℓ) DOT-4
Fuel 15.85 US gal. (60 ℓ)
14.79 US gal. (56 ℓ) (for ECO package model) Refer to “Fuel requirements” in
chapter 1.
*1 : Refer to the recommended SAE viscosity numbers on page 12.
*2 : To maintain the best braking performance and ABS/ESC performance, we recommend
that you use genuine brake fluid that conform to specifications. (Standard : SAE J1704
DOT-4 LV, ISO4925 CLASS-6 and FMVSS 116 DOT-4)

Vehicle Information
2-12
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 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.
Temperature Range for SAE Viscosity Numbers
Temperature °C
-30 -20 -10 0 10 20 30 40 50
(°F) -100 20 40 60 80 100 120
Engine Oil *
10W-20
*1 : Requires grade engine oil. If a lower grade
engine oil (mineral oil including Semi-synthetic) is used, then the engine oil and engine
oil filter must be replaced as indicated for severe maintenance condition.
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.

04
4-11
Charging System Warning
Light
When this warning light illuminates while
the engine is running, the battery is not
being charged. Immediately turn OFF
all electrical accessories. Try not to use
electrically operated controls, such as
the power windows. Keep the engine
running.
Have the vehicle inspected by an
authorized HYUNDAI dealer as soon as
possible.
Engine Oil Pressure Warning
Light
This warning light illuminates:
When the engine oil pressure is low.
If the engine oil pressure is low:
1.
Driv
e carefully to the nearest safe
location and stop your vehicle.
2.

T
urn the engine off and check
the engine oil level (For more
information, refer to "Engine Oil" in
chapter 8). If the level is low, add oil
as required.
If the warning light remains on after
adding oil or if oil is not available, have
the vehicle inspected by an authorized
HYUNDAI dealer as soon as possible.
NOTICE
• If the engine is not turned OFF
immediately after the Engine
Oil Pressure Warning Light is
illuminated, severe damage could
occur.
• If the warning light stays on while the
engine is running, it indicates that
there may be serious engine damage
or malfunction. In this case:
1.

S
top the vehicle as soon as it is
safe to do so.
2.

T
urn off the engine and check the
oil level. If the oil level is low, fill
the engine oil to the proper level.
3.

S
tart the engine again. If the
warning light stays on after the
engine has started, turn the
engine off immediately. In this
case, have the vehicle inspected
by an authorized HYUNDAI dealer.
Low Fuel Level Warning Light
This warning light illuminates:
When the fuel tank is nearly empty. Add
fuel as soon as possible.
NOTICE
Driving with the Low Fuel Level warning
light on or with the fuel level below "E"
can cause the engine to misfire and
damage the catalytic converter.

6-4
WARNING
Carbon monoxide (CO) gas is toxic. Breathing CO can cause unconsciousness and
death.
Engine exhaust contains carbon monoxide which cannot be seen or smelled.
Do not inhale engine exhaust.
If at any time you smell engine exhaust inside the vehicle, open the windows
immediately. Exposure to CO can cause unconsciousness and death by asphyxiation.
Be sure the exhaust system does not leak.
The exhaust system should be checked whenever the vehicle is raised to change the
oil or for any other purpose. If you hear a change in the sound of the exhaust or if you
drive over something that strikes the underneath side of the vehicle, have the exhaust
system checked as soon as possible by an authorized HYUNDAI dealer.
Do not run the engine in an enclosed area.
Letting the engine idle in your garage, even with the garage door open, is a hazardous
practice. Run the engine only long enough to start the engine and to move the vehicle
out of the garage.
Avoid idling the engine for prolonged periods with people inside the vehicle.
If it is necessary to idle the engine for a prolonged period with people inside the
vehicle, be sure to do so only in an open area with the air intake set at "Fresh" and fan
control set to high so fresh air is drawn into the interior.
Keep the air intakes clear.
To assure proper operation of the ventilation system, keep the ventilation air intakes
located in front of the windshield clear of snow, ice, leaves, or other obstructions.
If you must drive with the trunk open:
Close all windows.
Open instrument panel air vents.
Set the air intake control at "Fresh", the air flow control at "Floor" or "Face", and the fan
control set to high.
WARNING
CALIFORNIA PROPOSITION 65 WARNING
Engine exhaust and a wide variety of automobile components including
components found in the interior furnishings in a vehicle, contain or emit harmful
chemicals known to the State of California to cause cancer and birth defects and
reproductive harm. In addition, certain fluids contained in vehicles and certain
products of components contain or emit chemicals known to the State of California
to cause cancer and birth defects or other reproductive harm.
While Driving

06
6-39
Various driving situations, which you may
encounter in SMART mode
• The driving mode automatically
changes to SMART SPORT, when
you abruptly accelerate the vehicle
or repetitively operate the steering
wheel (Your driving is categorized
to be sporty.). In this mode, your
vehicle drives in a lower gear for
abrupt accelerating/decelerating
and increases the engine brake
performance.
• You may still sense the engine
braking performance, even when
you release the accelerator pedal in
SMART SPORT mode. It is because
your vehicle remains in lower gear
over a certain period of time for next
acceleration. Thus, it is a normal
driving situation, not indicating any
malfunction.
• The driving mode automatically
changes to SMART SPORT mode only
in harsh driving situations. In most
of the normal driving situations, the
driving mode sets to be in SMART
NORMAL mode. Limitation of SMART mode
The SMART mode may be limited in
following situations. (The OFF indicator
illuminates in those situations.)
•
The driver uses the paddle shifter
(manual shift mode) :
It deactivates SMART mode. The
vehicle drives, as the driver manually
changes gear with the paddle shifter.
• The cruise control is activated :
The cruise control system may
deactivate the SMART mode when
the vehicle is controlled by the set
speed of Smart Cruise Control system.
(SMART mode is not deactivated
just by activating the cruise control
system.)
• The transmission oil temperature is
either extremely low or extremely
high :
The SMART mode can be active in
most of the normal driving situations.
However, an extremely high/ low
transmission oil temperature may
temporarily deactivate the SMART
mode, because the transmission
condition is out of normal operation
condition.

6-142
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 reduced.
After driving through water, dry the
brakes by gently applying them several
times while the vehicle is moving slowly.
Highway Driving
Tires
Adjust the tire inflation, as specified.
Under-inflation may overheat or damage
the tires.
Do not install worn-out or damaged tires,
which may reduce traction or adversely
affect vehicle handling. This could lead
to sudden tire failure that may cause
loss of vehicle control resulting in an
accident.
Information
Never over-inflate your tires above the
maximum inflation pressure, as specified
on your tires.
Fuel, engine coolant and engine oil
Driving at higher speeds on the highway
consumes more fuel and is less efficient
than driving at a slower, more moderate
speed. Maintain a moderate speed in
order to conserve fuel when driving on
the highway.
Be sure to check both the engine coolant
level and the engine oil before driving.
Drive belt
A loose or damaged drive belt may
overheat the engine.
While Driving