2021 INFINITI Q50 oil pressure

8-2Do-it-yourself
When performing any inspection or main-
tenance work on your vehicle, always take
care to prevent serious accidental injury to
yourself or damage to the vehicle. The
following are general precautions which
should be closely observed.
WARNING
.Park the vehicle on a level surface,
apply the parking brake securely and
block the wheels to prevent the
vehicle from moving. Move the shift
lever to P (Park).
. Be sure the ignition switch is in the
OFF or LOCK position when per-
forming any parts replacement or
repairs.
. Never connect or disconnect the
battery or any transistorized compo-
nent while the ignition switch is in the
ON position.
. Never leave the engine or automatic
transmission related component har-
nesses disconnected while the igni-
tion switch is in the ON position.
. If you must work with the engine
running, keep your hands, clothing,
hair and tools away from moving
fans, belts and any other moving parts.
. It is advisable to secure or remove
any loose clothing and remove any
jewelry, such as rings, watches, etc.
before working on your vehicle.
. Always wear eye protection when-
ever you work on your vehicle.
. If you must run the engine in an
enclosed space such as a garage, be
sure there is proper ventilation for
exhaust gases to escape.
. Never get under the vehicle while it is
supported only by a jack. If it is
necessary to work under the vehicle,
support it with safety stands.
. Keep smoking materials, flame and
sparks away from fuel tank and the
battery.
. Your vehicle is equipped with an
automatic engine cooling fan. It may
come on at any time without warn-
ing, even if the ignition key is in the
OFF position and the engine is not
running. To avoid injury, always dis-
connect the negative battery cable
before working near the fan.
. Because the fuel lines are under high
pressure even when the engine is off,
it is recommended you visit an
INFINITI retailer for service of the fuel filter or fuel lines.
CAUTION
.
Do not work under the hood while the
engine is hot. Turn the engine off and
wait until it cools down.
. Avoid direct contact with used en-
gine oil and coolant. Improperly dis-
posed engine oil, coolant, and/or
other vehicle fluids can damage the
environment. Always conform to lo-
cal regulations for disposal of vehicle
fluid.
This “8. Do-it-yourself” section gives in-
structions regarding only those items which
are relatively easy for an owner to perform.
A genuine INFINITI Service Manual is also
available. (See “Owner’s Manual/Service
Manual order information” (P.10-24).)
You should be aware that incomplete or
improper servicing may result in operating
difficulties or excessive emissions, and could
affect your warranty coverage. If in doubt
about any servicing, it is recommended you
have it done by an INFINITI retailer.
MAINTENANCE PRECAUTIONS

JVC0968X
VR30DDTT ENGINE
1. Battery
2. Engine oil dipstick
3. Engine oil filler cap
4. Brake fluid reservoir
5. Fuse/fusible link holder6. Air cleaner
7. Engine drive belt location
8. Radiator filler cap
9 Intercooler cooling reservoir
10. Engine coolant reservoir
11. Window washer fluid reservoirThe engine cooling system is filled at the
factory with a pre-diluted mixture of 50%
Genuine NISSAN Long Life Antifreeze/
Coolant (blue) and 50% water to provide
year-round anti-freeze and coolant protec-
tion. The anti-freeze solution contains rust
and corrosion inhibitors. Additional engine
cooling system additives are not necessary.
WARNING
.
Never remove the radiator cap when
the engine is hot. Wait until the
engine and radiator cool down. Ser-
ious burns could be caused by high
pressure fluid escaping from the
radiator. See precautions in “If your
vehicle overheats” (P.6-7) of this
manual.
. The radiator is equipped with a
pressure type radiator cap. To pre-
vent engine damage, use only a
genuine NISSAN radiator cap.
CAUTION
.Never use any cooling system addi-
tives such as radiator sealer. Addi-
tives may clog the cooling system and
cause damage to the engine, trans-
Do-it-yourself8-3
ENGINE COMPARTMENT CHECK
LOCATIONS ENGINE COOLING SYSTEM

8-40Do-it-yourself
This could cause an accident.
. Do not use oil or grease on the wheel
studs or nuts. This could cause the
nuts to become loose.
.As soon as possible, tighten the wheel
nuts to the specified torque with a
torque wrench.
Wheel nut tightening torque: 80 ft-lb (108 N·m)
The wheel nuts must be kept tigh-
tened to specification at all times. It
is recommended that wheel nuts be
tightened to specifications at each
lubrication interval.
.Adjust tire pressure to the COLD pressure.
COLD pressure:
After the vehicle has been parked for
three hours or more or driven less
than 1 mile (1.6 km).
COLD tire pressures are shown on
the Tire and Loading Information
label affixed to the driver side center
pillar.
Securely store the jacking tools in the
vehicle.

11 Index
A
ABS (Anti-lock Braking System) ................... 5-126
Active Lane Control ............................................ 5-25
Active noise cancellation ................................. 5-137
Active sound enhancement ............................ 5-137
Active trace control .......................................... 5-129
Air bag systemFront-seat mounted side-impact
upplemental air bag system ....................... 1-57
Roof-mounted curtain side-impact
supplemental air bag system ..................... 1-57
Air bag warning labels ....................................... 1-60
Air bag warning light .............................. 1-60, 2-12
Air cleaner housing filter ................................... 8-15
Air conditioner
Air conditioner operation ............................ 4-36
Air conditioner service ................................ 4-42
Air conditioner specification label ......... 10-13
Air conditioning system refrigerant and
lubricant recommendations ....................... 4-42
Air conditioning system refrigerant and
oil recommendations .................................... 10-7
Automatic air conditioner ........................... 4-37
DUAL mode setting ..................................... 4-40
Heater and air conditioner .......................... 4-36
Servicing air conditioner ............................. 4-42
Air deflectors ...................................................... 10-16 Alarm
How to stop alarm (see vehicle
security system) ............................................. 2-31
Alcohol, drugs and driving ................................ 5-10
Android Auto .......................................................... 4-2
Antenna .................................................................. 4-43
Anti-lock Braking System (ABS) ................... 5-126
Appearance care
Exterior appearance care ............................... 7-2
Interior appearance care ................................ 7-5
Apple CarPlay
®...................................................... 4-2
Armrest ...................................................................... 1-7
Around View
®Monitor ...................................... 4-11
Audible reminders ................................................. 2-17
Autolight system .................................................. 2-36
Automatic Automatic air conditioner ........................... 4-37
Automatic Transmission Fluid (ATF) ......... 8-9
Driving with automatic transmission ....... 5-16
Automatic door locks ............................................ 3-5
Automatic seat positioner ................................ 3-33
Avoiding collision and rollover ............................ 5-9
B
Back-up Collision Intervention (BCI) .............. 5-60
Battery .................................................................... 8-11
Battery replacement, Intelligent Key ......... 3-2
Battery saver system .................................... 2-39
Intelligent Key ................................................. 8-19 Variable voltage control system ............... 8-13
Before starting the engine ................................ 5-14
Belts (See drive belts) ......................................... 8-13
Blind Spot Intervention
®(BSI) ......................... 5-48
Blind Spot Warning (BSW) .............................. 5-40
Brake
Anti-lock Braking System (ABS) ............. 5-126
Brake fluid ...................................................... 8-10
Brake force distribution ............................ 5-128
Brake system ................................................ 5-125
Parking brake operation ............................. 5-20
Brake warning light .............................................. 2-11
Break-in schedule .............................................. 5-118
Bulb check/instrument panel ............................ 2-11
Bulb replacement ................................................. 8-22
C
Camera aiding sonar function ......................... 4-25
Capacities and
recommended fluids/lubricants ....................... 10-2
Car phone or CB radio ....................................... 4-43
Card holder ............................................................ 2-50
Catalytic converter Three-way catalyst ......................................... 5-5
Changing intercooler coolant ............................. 8-6
Chassis control ................................................... 5-131
Check tire pressure warning ............................. 2-22
Checking intercooler coolant level .................... 8-6

Maintenance requirements ........................... 9-2
Maintenance schedules ................................. 9-6
Outside the vehicle ......................................... 9-2
Seat belt maintenance ................................. 1-19
Standard maintenance ................................... 9-8
Under the hood and vehicle ......................... 9-4
Maintenance schedules ........................................ 9-6
Malfunction indicator light (MIL) .................... 2-15
Map lights .............................................................. 2-56
Master warning light ............................... 2-12, 2-16
Mechanical key (Intelligent Key system) .......... 3-3
Memory seat ......................................................... 3-33
Memory storage
Memory seat ................................................... 3-33
Meter Trip computer ................................................. 2-27
Meters and gauges ................................................ 2-6 Instrument brightness control ................... 2-41
Mirror
Inside mirror .................................................... 3-29
Outside mirrors ............................................. 3-30
Vanity mirror ................................................... 3-32
Monitor Around View
®Monitor ................................ 4-11
RearView Monitor ........................................... 4-3
Moonroof ............................................................... 2-54
Moving Object Detection (MOD) .................. 4-30
N
New vehicle break-in ........................................ 5-118
O
Odometer .................................................................. 2-7
Off-road recovery .................................................. 5-9
Oil Capacities and
recommended fluids/lubricants ................. 10-2
Changing engine oil and filter ...................... 8-7
Checking engine oil level ............................... 8-7
Engine oil ........................................................... 8-7
Engine oil viscosity ........................................ 10-7
One touch unlock sensor (See Intelligent
Key system) .............................................................. 3-9
Operation Indicators for operation ............................... 2-21
Outside air temperature .................................... 2-29
Outside mirrors .................................................... 3-30
Overheat, If your vehicle overheats .................. 6-7
Owner’s Manual/Service Manual
order information ............................................. 10-24
P
Panic alarm ............................................................ 3-17
Parking
Parking brake operation ............................. 5-20
Parking on hills ............................................. 5-122
Parking brake break-in .................................... 5-126 Personal lights ...................................................... 2-57
PERSONAL mode ............................................... 5-24
Phone
Car phone or CB radio ................................ 4-43
Power Power door lock ............................................... 3-4
Power outlet ................................................... 2-45
Power steering system .............................. 5-123
Power windows ............................................. 2-52
Power moonroof ................................................. 2-55
Power steering warning light ........................... 2-16
Pre-crash seat belts with
comfort function ................................................... 1-15
Precautions Braking precautions .................................... 5-125
Child restraints ............................................... 1-22
Cruise control ................................................. 5-69
Maintenance ..................................................... 8-2
Seat belt usage .............................................. 1-12
Supplemental restraint system .................. 1-42
When starting and driving ............................ 5-4
Predictive Forward Collision
Warning (PFCW) .............................................. 5-109
Push starting ............................................................ 6-7
Push-button ignition switch .............................. 5-11R
Radio Car phone or CB radio ................................ 4-43
Rain-sensing auto wiper system ..................... 2-34
Rapid air pressure loss .......................................... 5-9
11-5

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