engine oil GENESIS G90 2021 Owner's Guide

7-23
07
CALIFORNIA PROPOSITION 65 WARNING
Engine oil contains chemicals known to the State of California to
cause cancer, birth defects and reproductive harm. Used engine oil
may cause irritation or cancer of the skin if left in contact with the skin
for prolonged periods of time. Always protect your skin by washing
your hands thoroughly with soap and warm water as soon as possi-
ble after handling used oil.
WARNING
Checking the Engine Oil and Filter
Have engine oil and filter changed by an authorized retailer of Genesis
Branded products according to the Maintenance Schedule at the beginning of
this chapter.

7-27
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Checking the Brake Fluid
Level
Check the fluid level in the reservoir
periodically. The fluid level should be
between MAX and MIN marks on the
side of the reservoir.
Before removing the reservoir cap
and adding brake fluid, clean the
area around the reservoir cap thor-
oughly to prevent brake fluid contam-
ination.
If the level is low, add the specified
brake fluid to the MAX level. The level
will fall with accumulated mileage.
This is a normal condition associated
with the wear of the brake linings. If
the fluid level is excessively low, have
the brake system checked by an
authorized retailer of Genesis
Branded products.• Do not allow brake fluid to con-
tact the vehicle's body paint, as
paint damage will result.
• Brake fluid, which has been
exposed to open air for an
extended time should NEVER be
used as its quality cannot be
guaranteed. It should be dis-
posed of properly.
• Do not use the wrong kind of
brake fluid. A few drops of min-
eral based oil, such as engine
oil, in your brake system can
damage brake system parts.
Information
Use only the specified brake fluid
(refer to "Recommended Lubricants
and Capacities" in chapter 8).
i
NOTICE
BRAKE FLUID
If the brake system requires fre-
quent additions of fluid this
could indicate a leak in the
brake system. Have the vehicle
inspected by an authorized
retailer of Genesis Branded
products.
WARNING
Do not allow brake fluid to come
in contact with your eyes. If
brake fluid comes in contact
with your eyes, flush your eyes
with clean water for at least 15
minutes and get immediate
medical attention.
WARNING
OHI078016

7-29
07
Filter Replacement
Do not attempt to wash or to rinse it,
as water will damage the filter.
If soiled, the air cleaner filter must be
replaced.
Visit an authorized retailer of
Genesis Branded products to
replace the air cleaner filter.
Replace the filter according to the
Maintenance Schedule
Information
If the vehicle is operated in extremely
dusty or sandy areas, replace the air
cleaner filter more often than the
usual recommended intervals (refer to
"Maintenance Under Severe Usage
Conditions" in this chapter).• Do not drive with the air cleaner
filter removed. This will result in
excessive engine wear.
• When removing the air cleaner
filter, be careful that dust or dirt
does not enter the air intake, or
damage may result.
• Use Genuine Genesis Part, use
of non-Genuine Genesis Part
could damage the engine.
NOTICE
i
AIR CLEANER
OHI078018

7-35
07
Battery Recharging
By battery charger
Your vehicle has a maintenance-free,
calcium-based battery.
• If the battery becomes discharged
in a short time (because, for exam-
ple, the headlights or interior lights
were left on while the vehicle was
not in use), recharge it by slow
charging (trickle) for 10 hours.
• If the battery gradually discharges
because of high electric load while
the vehicle is being used, recharge
it at 20-30A for two hours.
AGM battery
• Absorbent Glass Matt (AGM)
batteries are maintenance-free
and we recommend that the
AGM battery be serviced by an
authorized retailer of Genesis
Branded products. For charging
your AGM battery, use only fully
automatic battery chargers that
are specially developed for AGM
batteries.
• When replacing the AGM bat-
tery, we recommend that you
use parts for replacement from
an authorized retailer of Genesis
Branded products.
• Do not open or remove the cap
on top of the battery. This may
cause leaks of internal elec-
trolyte that could result in
severe injury.
NOTICE
Always follow these instruc-
tions when recharging your
vehicle's battery to avoid the
risk of SERIOUS INJURY or
DEATH from explosions or acid
burns:
• Before performing mainte-
nance or recharging the bat-
tery, turn off all accessories
and press the Engine Start/
Stop button to the OFF posi-
tion.
• Keep all flames, sparks, or
smoking materials away from
the battery.
• Always work outdoors or in an
area with plenty of ventilation.
• Wear eye protection when
checking the battery during
charging.
• The battery must be removed
from the vehicle and placed in
a well ventilated area.
• Watch the battery during
charging, and stop or reduce
the charging rate if the battery
cells begin boiling violently.
WARNING

7-52
Maintenance
A vehicle's electrical system is pro-
tected from electrical overload dam-
age by fuses.
This vehicle has 4 fuse panels, one
located in the driver's side panel bol-
ster, another in the engine compart-
ment, and two others in the trunk
compartment.
If any of your vehicle's lights, acces-
sories, or controls do not work, check
the appropriate circuit fuse. If a fuse
has blown, the element inside the
fuse will be melted or broken.If the electrical system does not
work, first check the driver's side
fuse panel. Before replacing a blown
fuse, turn the engine and all switches
off, and then disconnect the negative
battery cable. Always replace a
blown fuse with one of the same rat-
ing.
If the replacement fuse blows, this
indicates an electrical problem. Avoid
using the system involved and imme-
diately consult an authorized retailer
of Genesis Branded products.
Information
Four kinds of fuses are used: blade
type for lower amperage rating, car-
tridge type, multi fuse and fusible link
for higher amperage ratings.
Do not use a screwdriver or any
other metal object to remove
fuses because it may cause a
short circuit and damage the sys-
tem.
NOTICE
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FUSES
Normal Normal ■Blade type
■Cartridge typeBlown
Blown
■Fusible link
NormalBlown
OCK077071
NEVER replace a fuse with any-
thing but another fuse of the
same rating.
• A higher capacity fuse could
cause damage and possibly
cause a fire.
• Do not install a wire or alu-
minum foil instead of the
proper fuse - even as a tempo-
rary repair. It may cause
extensive wiring damage and
possibly a fire.
WARNING
■Multi fuse
NormalBlown

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Fuse name Fuse rating Circuit protected
SENSOR110A
[3.3 T-GDI] Oil Controlvalve #1/#2/#3/#4 (Intake/Exhaust),
Purge Control Solenoid Valve, Oil Pressure
Solenoid Valve, Canister Close Valve
[5.0 GDI] Oil Controlvalve #1/#2/#3/#4 (Intake/ Exhaust),
Purge Control Solenoid Valve, Canister Close
Valve
SENSOR310ARear Sub Junction Block (Fuel Pump Relay)
SENSOR410A[5.0 GDI] Camshaft Position Sensor #1/#2/#3/#4 (Intake/
Exhaust)
IGN COIL15A[3.3 T-GDI] Ignition Coil #1/#2/#3/#4/#5/#6
[5.0 GDI] Ignition Coil #1/#2/#3/#4/#5/#6/#7/#8
ECU420AECM
ECU520AECM
A/C210AA/Con Comp Relay
POWER
OUTLET4 20APower Outlet #2 Relay
A/C110AA/C Control Module
BLOWER FRT40AFront Blower Relay
IG140AIG1 Relay
START30AEngine Room Junction Block (Start Relay)
ECU115AECM
TCU120ATCM
ESC310AESC Control Module

7-75
07
• Do not use strong soap, chemi-
cal detergents or hot water, and
do not wash the vehicle in direct
sunlight or when the body of the
vehicle is warm.
• Be careful when washing the
side windows of your vehicle.
Especially, with high-pressure
water, water may leak through
the windows and wet the interior.
• To prevent damage to the plastic
parts, do not clean with chemi-
cal solvents or strong deter-
gents.
• Water washing in the engine
compartment including high
pressure water washing may
cause the failure of electrical cir-
cuits located in the engine com-
partment.
• Never allow water or other liq-
uids to come in contact with
electrical/electronic compo-
nents inside the vehicle as this
may damage them.Matte paint finish vehicle
(if equipped)
Automatic car wash which uses
rotating brushes should not be
used as this can damage the sur-
face 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 hand
wash your vehicle, you should not
use a cleaner that finishes with
wax. If the vehicle surface is too
dirty (sand, dirt, dust, contami-
nant, etc.), clean the surface with
water before washing the car.
Waxing
A good coat of wax provides a barri-
er between your paint and environ-
mental contamination.
Keeping a good coat of wax on your
vehicle will help protect it.
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 main-
tain its luster.
Removing oil, tar, and similar materi-
als 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 wax-
ing.
NOTICE
NOTICE
NOTICE
OHI079049N

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.
RECOMMENDED LUBRICANTS AND CAPACITIES
8-6
Specifications, Consumer information and Reporting safety defects
Lubricant Volume Classification
Engine oil *
1*2
(drain and refill)
3.3 T-GDI7.29 US qt. (6.9 l)ACEA A5 or above *3/
5W-30 (SAE Viscosity Number)
5.0
GDI2WD8.45 US qt. (8.0 l)API SM & ILSAC GF-4 or
above *4/
5W-20 (SAE Viscosity Number)AWD9.72 US qt. (9.2 l)
Automatic
transmission fluid9.72 US qt. (9.2 l)GS ATF SP-IV-RR, Genesis/
Hyundai ATF SP-IV-RR or other
brands meeting the above
specification approved by
Genesis Customer Care
Engine coolant3.3 T-GDI10.36 US qt. (9.8l)
Mixture of antifreeze and water
(Ethylene glycol based coolant
for aluminum radiator)
5.0
GDI2WD12.68 US qt. (12.0 l)
AWD12.05 US qt. (11.4l)
Brake fluid0.74~0.85 US qt.
(0.7~0.8 l)FMVSS116 DOT-4
Front differential oil (AWD) *
50.74 US qt. (0.7 l)Hypoid gear oil MS517-15GT
75W/85 (GL-5)
(SK HK SYN GEAR OIL
75W/85 or equivalent) Rear differential oil *
51.48 US qt. (1.4 l)
Transfer case oil (AWD)0.66 US qt. (0.62 l)SHELL TF0870B
Fuel21.9 US gal. (83 l)Refer to “Fuel Requirements” in
the Introduction chapter.
*1: Refer to the recommended SAE viscosity numbers on the next page.
*2: Engine oils labeled Energy Conserving Oil are now available. Along with other
additional benefits, they contribute to fuel economy by reducing the amount of fuel
necessary to overcome engine friction. Often, these improvements are difficult to
measure in everyday driving, but in a year’s time, they can offer significant cost and
energy savings.
*
3: If the ACEA A5 engine oil is not available in your country, you are able to use API
SM & ILSAC GF4 (or above) or ACEA A3.
*
4: If the API SM & ILSAC GF-4 engine oil is not available in your country, you are able
to use API SL & ILSAC GF-3.
*
5: If the front/rear differential is submerged, we recommend that you visit an author-
ized retailer of Genesis Branded products to replace differential oil.

8-7
08
Recommended SAE Viscosity Number
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 weath-
er operating (engine start and engine oil flowability). Lower viscosity engine
oils can provide better fuel economy and cold weather performance, howev-
er, 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 temper-
ature your vehicle will be operated in before the next oil change. Proceed to
select the recommended oil viscosity from the chart.
NOTICE
*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.
*
2: For better fuel economy, it is recommended to use the engine oil of a viscosity
grade SAE 5W-20 (API SM / ILSAC GF-4
(or above)). However, if the engine oil is not available in your country, select the
proper engine oil using the engine oil viscosity chart.
Temperature Range for SAE Viscosity Numbers
Temperature -30 -20 -10 0 10 20 30 40 50
-10 0 20 40 60 80 100 120
Engine
Oil
3.3 Turbo-
GDI
*1
5.0 GDI *2
°C
(°F)
5W-30
10W-30
10W-30
5W-20, 5W-30
An engine oil displaying this 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.