2018 GENESIS G90 fuel

7-84
Maintenance
Purge Control Solenoid Valve(PCSV)
The purge control solenoid valve is
controlled by the Engine Control
Module (ECM); when the engine
coolant temperature is low during
idling, the PCSV closes so that evap-
orated fuel is not taken into the
engine. After the engine warms-up
during ordinary driving, the PCSV
opens to introduce evaporated fuel to
the engine.
3. Exhaust Emission Control System
The Exhaust Emission Control
System is a highly effective system
which controls exhaust emissions
while maintaining good vehicle per-
formance.
When the engine starts or fails to
start, excessive attempts to restart
the engine may cause damage to the
emission system.
Engine exhaust (carbon monox-
ide) precautions
Carbon monoxide can be present
with other exhaust fumes. If you
smell exhaust fumes of any kind in
your vehicle, drive with all the win-
dows fully open. Have your vehicle
checked and repaired immediately. Do not operate the engine in con-
fined or closed areas (such as
garages) any more than what is
necessary to move the vehicle in or
out of the area.
When the vehicle is stopped in an open area for more than a short
time with the engine running,
adjust the ventilation system (as
needed) to draw outside air into the
vehicle.
Never sit in a parked or stopped vehicle for any extended time with
the engine running.
When the engine stalls or fails to start, excessive attempts to restart
the engine may cause damage to
the emission control system.
Engine exhaust gases contain
carbon monoxide (CO). Though
colorless and odorless, it is
dangerous and could be lethal if
inhaled. Follow the instructions
on this page to avoid CO poi-
soning.
WARNING
CALIFORNIA PROPOSITION 65
WARNING
Engine exhaust and a wide vari-
ety of automobile components
and parts, including compo-
nents found in the interior fur-
nishings in a vehicle, contain or
emit chemicals known to the
State of California to cause can-
cer and birth defects and repro-
ductive harm. In addition, cer-
tain fluids contained in vehicles
and certain products of compo-
nent wear contain or emit chem-
icals known to the State of
California to cause cancer and
birth defects or other reproduc-
tive harm.
WARNING

7-85
07
Operating precautions for cat-alytic converters (if equipped)
Your vehicle is equipped with a cat-
alytic converter emission control
device.
To prevent damage to the catalytic
converter and to your vehicle, take
the following precautions: Use only UNLEADED FUEL for
gasoline engines.
Do not operate the vehicle when there are signs of engine mal-
function, such as misfire or a
noticeable loss of performance.
Do not misuse or abuse the engine. Examples of misuse are
coasting with the engine off and
descending steep grades in gear
with the engine off.
Do not operate the engine at high idle speed for extended
periods (5 minutes or more).
Do not modify or tamper with any part of the engine or emis-
sion control system. All inspec-
tions and adjustments must be
made by an authorized retailer
of Genesis Branded products.
Avoid driving with extremely low fuel level. If you run out of gaso-
line, it could cause the engine to
misfire and result in excessive
loading of the catalytic converter.
NOTICE
The exhaust system and cat-
alytic converter are very hot
during and immediately after
the engine has been running. To
avoid SERIOUS INJURY or
DEATH:
Do not park, idle, or drive thevehicle over or near flamma-
ble objects, such as grass,
vegetation, paper, leaves, etc.
A hot exhaust system can
ignite flammable items under
your vehicle.
Keep away from the exhaust system and catalytic convert-
er or you may get burned.
Also, Do not remove the heat
sink around the exhaust sys-
tem, do not seal the bottom of
the vehicle, and do not coat
the vehicle for corrosion con-
trol. It may present a fire risk
under certain conditions.
WARNING

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.
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8-6
Specifications & Consumer information
Lubricant VolumeClassification
Engine oil *
1*2
(drain and refill) 3.3 T-GDI7.29 US qt. (6.9
l)ACEA A5/B5
API SN & ILSAC GF-5
5.0
GDI2WD8.45 US qt. (8.0
l)API SM & ILSAC GF-4*3
(or above)AWD9.72 US qt. (9.2
l)
Automatic
transmission fluid 9.72 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 Motors
USA
Engine coolant 3.3 T-GDI
10.36 US qt. (9.8
l)
Mixture of antifreeze and
water (phosphate based eth-
ylene glycol coolant for alu-
minum radiator)
5.0
GDI2WD12.68 US qt. (12.0 l)
AWD12.05 US qt. (11.4l)
Brake fluid 0.74~0.85 US qt.
(0.7~0.8 l)FMVSS116 DOT-3 or DOT-4
Front differential oil (AWD) *
40.74 US qt. (0.7 l)Hypoid gear oil MS517-
15GT 75W/85 (GL-5)
(SK HK SYN GEAR OIL
75W/85 equivalent)
Rear differential oil *
41.48 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 API SM & ILSAC GF-4 engine oil is not available in your country, you are able to use API SL & ILSAC GF-3
*
4: 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 oilof 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 viscos-
ity 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 *110W-30
5W-30
°C
(°F)
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 *110W-30
5W-20, 5W-30
°C
(°F)
■ Lambda 3.3 T-GDI
■ Tau 5.0 GDI
*1: For better fuel economy, it is recommended to use the engine oil of a viscosity
grade SAE 5W-30 (ACEA A5/B5). However, if the engine oil is not available in your
country, select the proper engine oil using the engine oil viscosity chart.

Engine Start/Stop button ........................................................................\
................5-7
Evaporative emission control System ..................................................................7-83
Exhaust emission control system ........................................................................\
.7-84
Explanation of scheduled maintenance items ......................................................7-19
Exterior care ........................................................................\
.................................7-81
Exterior overviewFront view ........................................................................\
.............................1-2
Rear view ........................................................................\
..............................1-3
Flat tire Jack and tools ........................................................................\
......................6-16
Jack label ........................................................................\
.............................6-22
Use of compact spare tires ........................................................................\
..6-20
Floor mat anchor(s) ........................................................................\
....................3-151
Fluid Brake fluid........................................................................\
...........................7-27
Washer fluid ........................................................................\
........................7-28
Front seat adjustment ........................................................................\
............2-8
Adjusting the height up and down ..............................................................2-24
Easy access switch ........................................................................\
..............2-13
Forward and rearward adjustment.........................................\
......................2-10
Lumbar support ........................................................................\
...................2-12
Reclining seatback........................................................................\
...............2-11
Removal/Reinstall ........................................................................\
...............2-25
Seat bolster adjustment ........................................................................\
.......2-13
Seat cushion height and tilt ........................................................................\
.2-12
Seat cushion length adjustment ...................................................................2-10
Front seat head restraints ........................................................................\
....2-24
Seat shoulder adjustment ........................................................................\
....2-13
Seatback angle ........................................................................\
.....................2-11
Seatback pocket........................................................................\
...................2-14
Front wiper deicer ........................................................................\
......................3-121
Fuel filler door........................................................................\
..............................3-57 Emergency fuel filler door release ..............................................................3-59
Fuel gauge ........................................................................\
....................................3-62
Fuel requirements........................................................................\
...........................F-7
Fuse switch ........................................................................\
...................................7-54
I-7
I
F

Sunglass holder ........................................................................\
..........................3-143
Sunroof ........................................................................\
.........................................3-44
Sunroof inside air recirculation ........................................................................\
..3-140
Sunvisor ........................................................................\
......................................3-147
Tachometer ........................................................................\
...................................3-61
Theft-alarm system........................................................................\
.......................3-14
Tilt steering / Telescope steering........................................................................\
..3-18
Tire chains ........................................................................\
..................................5-106
Tire pressure monitoring system (TPMS) ............................................................6-10Changing a Tire with TPMS .......................................................................6\
-14
Low tire pressure LCD display with position indicator .............................6-12
Low tire pressure telltale ........................................................................\
.....6-12
TPMS malfunction indicator.......................................................................6\
-13
Tire rotation ........................................................................\
..................................7-39
Tire specification and pressure label ......................................................................8-\
8
Tires and wheels ........................................................................\
...........................7-37 Checking tire inflation pressure ..................................................................7-39
Compact spare tire replacement ..................................................................7-42
Low aspect ratio tires ........................................................................\
..........7-51
Recommended cold tire inflation pressures ................................................7-38
Tire care........................................................................\
...............................7-37
Tire maintenance ........................................................................\
.................7-43
Tire replacement ........................................................................\
..................7-41
Tire rotation ........................................................................\
.........................7-39
Tire sidewall labeling ........................................................................\
..........7-43
Tire traction ........................................................................\
.........................7-43
Wheel alignment and tire balance ...............................................................7-40
Wheel replacement ........................................................................\
..............7-42
Tires and wheels specification ........................................................................\
.......8-4
Towing ........................................................................\
..........................................6-24
Transmission shift indicator ........................................................................\
.........3-64
Trip computer ........................................................................\
...............................3-95 Accumulated Info display ........................................................................\
...3-97
Digital speedometer ........................................................................\
............3-97
Driving Info display ........................................................................\
............3-96
Fuel economy ........................................................................\
......................3-95
I-16
Index
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