fuel cap INFINITI Q50 2021 User Guide

10-6Technical and consumer information
may cause excessive fuel consumption or
damage to the engine. If any of the above
symptoms are encountered, have your ve-
hicle checked. It is recommended you visit an
INFINITI retailer for servicing.
However, now and then you may notice
light spark knock for a short time while
accelerating or driving up hills. This is no
cause for concern, because you get the
greatest fuel benefit when there is light
spark knock for a short time under heavy
engine load.
JVT0342X
API certification mark
API service symbol
ENGINE OIL AND OIL FILTER
RECOMMENDATION
Selecting the correct oil
It is essential to choose the correct grade,
quality, and viscosity engine oil to ensure
satisfactory engine life and performance,
see “Capacities and recommended fluids/
lubricants” (P.10-2). INFINITI recommends
the use of an energy conserving oil in order
to improve fuel economy.
Select only engine oils that meet the Amer-
ican Petroleum Institute (API) certificationor International Lubricant Standardization
and Approval Committee (ILSAC) certifica-
tion and SAE viscosity standard. These oils
have the API certification mark on the front
of the container. Oils which do not have the
specified quality label should not be used as
they could cause engine damage.Oil additives
INFINITI does not recommend the use of oil
additives. The use of an oil additive is not
necessary when the proper oil type is used
and maintenance intervals are followed.
Oil which may contain foreign matter or has
been previously used should not be used.

11-2
Child restraints ..................................................... 1-22LATCH system ............................................... 1-24
Precautions on child restraints .................. 1-22
Child safety ............................................................ 1-19
Child safety rear door lock .................................. 3-6
Chimes Audible reminders .......................................... 2-17
Seat belt warning light
and chime ............................................. 1-14, 2-12
Circuit breaker
Fusible link ....................................................... 8-18
Cleaning exterior and interior .................... 7-2, 7-5
Climate control
Automatic air conditioner ........................... 4-37
Clock ...................................................................... 2-29
Coat hooks ............................................................ 2-51
Cockpit ...................................................................... 2-3
Cold weather driving ........................................ 5-134
Console box ........................................................... 2-50
Coolant Capacities and
recommended fluids/lubricants ................. 10-2
Changing engine coolant ............................... 8-5
Checking engine coolant level ...................... 8-4
Corrosion protection ............................................. 7-7
Courtesy light ....................................................... 2-59
Cruise control ....................................................... 5-69
Fixed speed cruise control (on
ICC system) ..................................................... 5-87
Intelligent Cruise Control (ICC) ................. 5-71
Cruise indicator .................................................... 2-23 Cup holders ........................................................... 2-48
Current fuel consumption ................................. 2-27
D
Daytime running light system .......................... 2-39
Defroster switch
Rear window and outside mirror
defroster switch ............................................. 2-35
Dimensions ......................................................... 10-10
Direct Adaptive Steering ................................. 5-123
Distance Control Assist (DCA) ........................ 5-91
Distance to empty ............................................... 2-27
Drive belts .............................................................. 8-13
Drive positioner .................................................... 3-33
Driver assist system indicator .......................... 2-24
Driving Cold weather driving ................................. 5-134
Driving with automatic transmission ....... 5-16
Precautions when starting and driving ..... 5-4
E
ECO drive indicator light .................................... 2-17
ECO mode ............................................................. 5-22
ECO pedal system ............................................... 5-22
EconomyFuel .................................................................. 5-119
Elapsed time ......................................................... 2-27
Elapsed time and trip odometer ..................... 2-27
Emergency Call (SOS) button .......................... 2-46
Emission control information label ............... 10-12 Emission control system warranty ............... 10-21
Engine
Before starting the engine .......................... 5-14
Break-in schedule ........................................ 5-118
Capacities and
recommended fluids/lubricants ................. 10-2
Changing engine coolant ............................... 8-5
Changing engine oil and filter ...................... 8-7
Checking engine coolant level ...................... 8-4
Checking engine oil level ............................... 8-7
Coolant temperature gauge ......................... 2-8
Emergency engine shut off ......................... 5-13
Engine block heater .................................... 5-135
Engine compartment check locations ........ 8-3
Engine cooling system ................................... 8-3
Engine oil ........................................................... 8-7
Engine oil and filter
replacement indicator ................................... 2-25
Engine oil and oil
filter recommendation .................................. 10-6
Engine oil viscosity ........................................ 10-7
Engine serial number ................................. 10-12
Engine specifications ................................... 10-8
Engine start operation indicator ............... 2-21
If your vehicle overheats ................................ 6-7
Remote engine start ..................................... 3-19
Remote engine start
operation indicator ........................................ 2-21
Starting the engine ....................................... 5-15
Engine coolant temperature gauge .................. 2-8

Entry/exit functionMemory seat ................................................... 3-33
Event Data Recorders (EDR) ........................ 10-24
Exhaust gas (carbon monoxide) ........................ 5-4
Explanation of scheduled
maintenance items ................................................. 9-5
F
F.M.V.S.S./C.M.V.S.S. certification label .... 10-12
Filter Air cleaner housing filter ............................. 8-15
Changing engine oil and filter ...................... 8-7
Flashers (See hazard warning
flasher switch) ......................................................... 6-2
Flat tire ...................................................................... 6-3
Flat Tire - Visit dealer warning ....................... 2-22
Flat towing ......................................................... 10-20
Floor mat cleaning ................................................. 7-5
Floor mat installation ............................................ 7-6
Fluid Automatic Transmission Fluid (ATF) ......... 8-9
Brake fluid ...................................................... 8-10
Capacities and
recommended fluids/lubricants ................. 10-2
Engine coolant .................................................. 8-3
Engine oil ........................................................... 8-7
Window washer fluid .................................. 8-10
Fog light switch ................................................... 2-42
Forward Emergency Braking (FEB) ............ 5-102
Forward Emergency Braking (FEB) system
warning light ......................................................... 2-13 Front passenger air bag and status light ..... 1-50
Front power seat adjustment ............................. 1-3
Front seat
Front seat adjustment .................................... 1-3
Fuel Capacities and
recommended fluids/lubricants ................. 10-2
Fuel economy ............................................... 5-119
Fuel information ........................................... 10-4
Fuel octane rating ........................................ 10-4
Fuel-filler cap .................................................. 3-25
Fuel-filler door ............................................... 3-25
Gauge .................................................................. 2-9
Fuel Efficient Driving Tips .............................. 5-118
Fuses ....................................................................... 8-17
Fusible links ........................................................... 8-18
G
Garage door opener HomeLink®Universal Transceiver ............ 2-59
Gas cap ................................................................... 3-25
Gauge ........................................................................\
. 2-6 Engine coolant temperature gauge ............ 2-8
Fuel gauge ......................................................... 2-9
Odometer ............................................................ 2-7
Speedometer ...................................................... 2-7
Tachometer ....................................................... 2-8
Trip computer ................................................. 2-27
General maintenance ............................................. 9-2 Glove box ............................................................... 2-50
H
Hazard warning flasher switch ........................... 6-2
Head restraints/headrests .................................. 1-8
Headlights
Aiming control (See Adaptive Front
lighting System (AFS)) ................................ 2-40
Headlight switch ............................................ 2-35
Heated seats ......................................................... 2-43
Heated steering wheel ....................................... 2-44
Heater Engine block heater .................................... 5-135
Heater and air conditioner ................................ 4-36
High beam assist ................................................. 2-37
Hill start assist system ..................................... 5-131
HomeLink
®Universal Transceiver .................. 2-59
Hood release ......................................................... 3-22
Hook Coat hooks ...................................................... 2-51
Trunk hooks .................................................... 2-51
Horn ........................................................................\
. 2-42
I
Ignition switch (Push-button) ................................................. 5-11
Automatic transmission models ................ 5-16
Immobilizer system .............................................. 2-31
Indicator
Vehicle information display ........................ 2-18
11-3

11-4
Indicators for operation (vehicle
information display) ............................................ 2-21
INFINITI Drive Mode Selector ......................... 5-21
INFINITI InTouch Owner’s Manual .................. 4-2
INFINITI Vehicle Immobilizer System ............ 2-31Engine start ..................................................... 2-31
Inside mirror .......................................................... 3-29
Inspection/maintenance (I/M) test ............. 10-23
Instrument brightness control ......................... 2-41
Instrument panel ..................................................... 2-5
Intelligent All-Wheel Drive (AWD) .............. 5-120
Intelligent Cruise Control (ICC) ........................ 5-71
Intelligent Cruise Control (ICC) system
ON indicator ......................................................... 2-23
Intelligent Key .......................................................... 3-2
Intelligent Key system ........................................... 3-6
Battery replacement ..................................... 8-19
Key operating range ....................................... 3-8
Key operation ................................................... 3-9
Warning signals .............................................. 3-13
Intercooler cooling system .................................. 8-5
Interior light control switch .............................. 2-57
Interior light replacement .................................. 8-23
Interior lights ......................................................... 2-56
Interior trunk lid release .................................... 3-24
ISOFIX child restraint ......................................... 1-24
J
Jump starting ........................................................... 6-5
K
Keyless entry (See remote keyless
entry system) ........................................................ 3-15
Keys ........................................................................\
.... 3-2 For Intelligent Key system ............................ 3-6
L
LabelsAir bag warning labels ................................. 1-60
Air conditioner specification label ......... 10-13
Emission control information label ........ 10-12
Engine serial number ................................. 10-12
F.M.V.S.S./C.M.V.S.S.
certification label ........................................ 10-12
Tire and Loading
information label ............................. 8-27, 10-13
Vehicle identification number (VIN) ....... 10-11
Lane Departure Warning (LDW)/Lane
Departure Prevention (LDP) ............................ 5-33
LATCH system ..................................................... 1-24
License plate Installing front license plate .................... 10-15
Light
Air bag warning light .................................... 1-60
Bulb replacement ........................................... 8-22
Fog light switch ............................................. 2-42
Headlight switch ............................................ 2-35
Interior light control switch ........................ 2-57
Interior lights ................................................... 2-56
Map lights ........................................................ 2-56 Personal lights ................................................ 2-57
Replacement ................................................... 8-22
Trunk light ....................................................... 2-59
Vanity mirror lights ....................................... 2-58
Lights Exterior and interior light replacement .... 8-23
Loading information (See vehicle
loading information) ......................................... 10-17
Lock Automatic door locks ..................................... 3-5
Door locks .......................................................... 3-4
Power door lock ............................................... 3-4
Trunk lid ........................................................... 3-22
Locking with mechanical key ............................. 3-4
Log-in function .................................................... 3-15
Loose Fuel Cap warning ....................... 2-22, 3-27
Low fuel warning light ....................................... 2-13
Low outside temperature warning ................. 2-23
Low tire pressure warning light ...................... 2-13
Low tire pressure warning system
(See Tire Pressure Monitoring
System (TPMS)) ................................ 5-5, 6-3, 8-25
M
Maintenance Battery .............................................................. 8-11
General maintenance ...................................... 9-2
Indicators for maintenance (vehicle
information display) ...................................... 2-24
Inside the vehicle ............................................. 9-3
Maintenance precautions .............................. 8-2

FUEL INFORMATION
Use unleaded premium gasoline with an
octane rating of at least 91 AKI (Anti-Knock
Index) number (Research octane number 96).
INFINITI recommends the use of unleaded
premium gasoline with 93 AKI number
(Research octane number 98) to obtain the
maximum vehicle performance and the best
driveability.
If unleaded premium gasoline is not avail-
able, unleaded regular gasoline with an
octane rating of at least 87 AKI number
(Research octane number 91) may be tem-
porarily used, but only under the following
precautions:
.Have the fuel tank filled only partially
with unleaded regular gasoline, and fill
up with unleaded premium gasoline as
soon as possible.
. Avoid full throttle driving and abrupt
acceleration.
Use unleaded premium gasoline for max-
imum vehicle performance.
CAUTION
. Using a fuel other than that specified
could adversely affect the emission control system, and may also affect
warranty coverage.
. Under no circumstances should a
leaded gasoline be used, because this
will damage the three-way catalyst.
. Do not use a fuel containing more
than 15% ethanol. Your vehicle is not
designed to run on a fuel containing
more than 15% ethanol. Using a fuel
containing more than 15% ethanol in
a vehicle not specifically designed for
a fuel containing more than 15%
ethanol can adversely affect the
emission control devices and systems
of the vehicle. Damage caused by
such fuel is not covered by the
INFINITI new vehicle limited war-
ranty.
. Do not use fuel that contains the
octane booster methylcyclopentadie-
nyl manganese tricarbonyl (MMT).
Using fuel containing MMT may
adversely affect vehicle performance
and vehicle emissions. Not all fuel
dispensers are labeled to indicate
MMT content, so you may have to
consult your gasoline retailer for
more details. Note that Federal and
California laws prohibit the use of
MMT in reformulated gasoline. .
U.S. government regulations require
ethanol dispensing pumps to be iden-
tified by a small, square, orange and
black label with the common abbre-
viation or the appropriate percen-
tage for that region.
ENGINE OIL RECOMMENDA-
TION:
See “Capacities and recommended fluids/
lubricants” (P.10-2) for engine oil and oil
filter recommendation.
COLD TIRE PRESSURES:
The label is typically located on the driver
side center pillar or on the driver’s door. For
additional information, see “Wheels and
tires” (P.8-25).
NEW VEHICLE BREAK-IN PRO-
CEDURES RECOMMENDATION:
During the first 1,200 miles (2,000 km) of
vehicle use, follow the recommendations
outlined in the “Break-in schedule” (P.5-
118) of this Owner’s Manual. Follow these
recommendations for the future reliability
and economy of your new vehicle.
GAS STATION INFORMATION