2021 GENESIS G90 oil change

7-16
Maintenance
Normal Maintenance Schedule (3.3 Turbo-GDI) (CONT.)I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.
*4: Use only the specified automatic transmission fluid. (Refer to "Recommended lubricants and capacities" in chapter 8 or the
label in the engine compartment.)
*5: Front/rear differential oil should be changed anytime, front/rear differential have been submerged in water.
*6: Fuel filter & Fuel tank air filter are considered to be maintenance free but periodic inspection is recommended for this main-
tenance schedule depends on fuel quality. If there are some important safety matters like fuel flow restriction, surging, loss
of power, hard starting problem, etc. replace the fuel filter immediately regardless of maintenance schedule and consult an
authorized retailer of Genesis Branded products for details.
Number of months or driving distance, whichever comes first
18090150
No check, No service required
lnspect every 6,000 miles (10,000km) or 12 months,
Replace every 48,000 miles (80,000km) or 48 months
16884140IIII
15678130
14472120IIIIII
13266110
12060100IIIII
1085490
964880IIIIII
844270
723660IIIII
603050
482440IIIIII
361830
241220IIII
12610
MonthsMiles×1,000Km×1,000
Automatic transmission fluid *
4
Front (AWD) / rear differential oil *
5
Vapor hose, fuel filler cap and fuel tankFuel tank air filter *
6
Fuel filter *
6
Fuel lines, hoses and connectionsParking brakeBrake fluid
MAINTENANCE
INTERVALS
MAINTENANCE
ITEM

7-19
07
Engine Oil and Filter
The engine oil and filter should be
changed at the intervals specified in
the maintenance schedule. If the
vehicle is being driven in severe con-
ditions, more frequent oil and filter
changes are required.
Drive Belts
Inspect all drive belts for evidence of
cuts, cracks, excessive wear or oil
saturation and replace if necessary.
Drive belts should be checked peri-
odically for proper tension and
adjusted as necessary.
Fuel Filter
A clogged-up fuel filter may limit the
vehicle driving speed, damage the
emission system, and cause the
hard starting. When a considerable
amount of foreign substances are
accumulated in the fuel tank, the fuel
filter should be replaced.
Upon installing a new fuel filter, oper-
ate the engine for several minutes,
and check the connections for any
leakages. Fuel filters should be
installed by an authorized retailer of
Genesis Branded products.
Fuel Lines, Fuel Hoses and
Connections
Check the fuel lines, fuel hoses and
connections for leakage and dam-
age. Have an authorized retailer of
Genesis Branded products replace
any damaged or leaking parts imme-
diately.
Vapor Hose and Fuel Filler
Cap
The vapor hose and fuel filler cap
should be inspected at those inter-
vals specified in the maintenance
schedule. Make sure a new vapor
hose or fuel filler cap is correctly
replaced.
Air Cleaner Filter
A Genesis air cleaner filter is recom-
mended when the filter is replaced.
Spark Plugs
Make sure to install new spark plugs
of the correct heat range.
EXPLANATION OF SCHEDULED MAINTENANCE ITEMS

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.

7-82
Maintenance
• Cleaning the leather seats
- Remove all contaminations
instantly. Refer to instructions
below for removal of each con-
taminant.
- Cosmetic products (sunscreen,
foundation, etc.)
Apply cleansing cream on a cloth
and wipe the contaminated spot.
Wipe off the cream with a wet
cloth and remove water with a dry
cloth.
- Beverages (coffee, soft drink,
etc.)
Apply a small amount of neutral
detergent and wipe until contami-
nations do not smear.
- Oil
Remove oil instantly with
absorbable cloth and wipe with
stain remover used only for natu-
ral leather.
- Chewing gum
Harden the gum with ice and
remove gradually.
• Handling prime napa leather
(if equipped)
Try to avoid excessive sunlight and
heat exposure. Excessive sunlight
and heat exposure naturally fades
and dries out napa leather, causing
wrinkles and discoloration. If the
napa leather is wet with liquid, imme-
diately clean it with lint-free cloth to
minimize damage. Do not scratch the
napa leather surface with a sharp
object. If your napa leather seat is
bright colored, it may be contaminat-
ed or stained from dyed materials
such as jeans.
Interior wooden trim
• Use a wooden furniture protector
(e.g. wax, coating compound) to
clean the interior wooden trim.
• Often wipe the interior wooden trim
with a lint-free, clean cloth to main-
tain the unique wooden textures for
a longer period of time.
• If you spill beverage (e.g. water,
coffee) over the interior wooden
trim, immediately wipe it with
clean, dry cloth.
• Sharp objects (e.g. driver, knife),
adhesive materials, or tapes
may damage the interior wooden
trim.
• Any strong impacts may dam-
age the interior wooden trim.
• If the coating finish over the
interior wooden trim is removed,
moisture may damage or
change wood traits.
• If the interior wooden trim is
damaged, you may get a splinter
from the wood surface.
Therefore, you should immedi-
ately have the damaged interior
wooden trim replaced by an
authorized retailer of Genesis
Branded products.
NOTICE

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.