check oil INFINITI Q50 2023 User Guide

8-8Do-it-yourself
JVM0668X
2WD models
JVM0669X
AWD models
Engine oil and filter
1. Place a large drain pan under the drainplug.
2. Remove the oil filler cap.
3. Remove the drain plug
with a wrench
and completely drain the oil.
CAUTION
Be careful not to burn yourself, as the
engine oil is hot.
.Waste oil must be disposed of prop-
erly.
.Check your local regulations.
4. (Perform steps 4 to 7 only when the engine oil filter change is needed.)
Loosen the oil filter
with an oil filter
wrench. Remove the oil filter by turning it
by hand.
5. Wipe the engine oil filter mounting sur- face with a clean rag.
CAUTION
Be sure to remove any old rubber gasket
remaining on the mounting surface of
the engine. Failure to do so could lead to engine damage.
6. Coat the gasket on the new filter with clean engine oil.
7. Screw in the oil filter clockwise until a slight resistance is felt, then tighten
additionally more than 2/3 turn.
Oil filter tightening torque:11 to 15 ft-lb
(14.7 to 20.6 N·m)
8. Clean and re-install the drain plug with a new washer. Securely tighten the drain
plug with a wrench.
Drain plug tightening torque:
22 to 29 ft-lb
(29.4 to 39.2 N·m)
Do not use excessive force.
9. Refill engine with recommended oil and install the oil filler cap securely.
See “Capacities and recommended
fluids/lubricants” (P.10-2) for drain and
refill capacity. The drain and refill capa-
city depends on the oil temperature and
drain time. Use these specifications for
reference only. Always use the dipstick
to determine the proper amount of oil in
the engine.
10. Start the engine and check for leakage around the drain plug and the oil filter.

Correct as required.
11. Turn the engine off and wait more than 15 minutes. Check the oil level with the
dipstick. Add engine oil if necessary.
After the operation
1. Install the engine undercover into posi-tion as the following steps.
a. Pull the center of the small plastic clip
out.
b. Hold the engine undercover into posi- tion.
c. Insert the clip through the undercover into the hole in the frame, then push
the center of the clip in to lock the clip
in place.
d. Install the other bolts that hold the undercover in place. Be careful not to
strip the bolts or over-tighten them.
2. Lower the vehicle carefully to the ground.
3. Dispose of waste oil and filter properly.
WARNING
. Prolonged and repeated contact with
used engine oil may cause skin cancer.
. Try to avoid direct skin contact with
used oil. If skin contact is made, wash thoroughly with soap or hand cleaner
as soon as possible.
. Keep used engine oil out of reach of
children. When checking or replacement is required,
we recommend an INFINITI retailer for
servicing.
CAUTION
.
It is recommended that you use only
Genuine NISSAN Matic S ATF. Do
not mix with other fluids.
. Using automatic transmission fluid
other than Genuine NISSAN Matic S
ATF or equivalent may cause dete-
rioration in driveability and auto-
matic transmission durability, and
may damage the automatic transmis-
sion. Damage caused by the use of
fluid other than as recommended is
not covered by the INFINITI’s New
Vehicle Limited Warranty.
Do-it-yourself8-9
AUTOMATIC TRANSMISSION
FLUID (ATF)

9-4Maintenance and schedules
and smoothly, and are installed securely.
Check the belt webbing for cuts, fraying,
wear or damage.
Steering wheel:Check for changes in the
steering conditions, such as excessive free
play, hard steering or strange noises.
Warning lights and chimes: Make sure that
all warning lights and chimes are operating
properly.
Windshield defroster: Check that the air
comes out of the defroster outlets properly
and in sufficient quantity when operating
the heater or air conditioner.
Windshield wiper and washer*: Check that
the wipers and washer operate properly and
that the wipers do not streak.
Under the hood and vehicle
The maintenance items listed here should be
checked periodically (for example, each time
you check the engine oil or refuel).
Battery*: Check the fluid level in each cell. It
should be between the MAX and MIN lines.
Vehicles operated in high temperatures or
under severe condition require frequent
checks of the battery fluid level.
NOTE:
Care should be taken to avoid situations
that can lead to potential battery discharge
and potential no-start conditions such as: 1.
Installation or extended use of electro-
nic accessories that consume battery
power when the engine is not running
(Phone chargers, GPS, DVD players,
etc.)
2. Vehicle is not driven regularly and/or
only driven short distances.
In these cases, the battery may need to be
charged to maintain battery health.
Brake fluid level*: Make sure that the brake
fluid level is between the MAX and MIN lines
on the reservoir.
Engine coolant level*: Check the coolant
level when the engine is cold.
Intercooler coolant level*: Check the coolant
level when the engine is cold.
Engine drive belts*: Make sure that no belt is
frayed, worn, cracked or oily.
Engine oil level*: Check the level after
parking the vehicle on a level spot and
turning off the engine. Wait more than 15
minutes for the oil to drain back into the oil
pan.
Exhaust system: Make sure there are no
loose supports, cracks or holes. If the sound
of the exhaust seems unusual or there is a
smell of exhaust fumes, immediately have
the exhaust system inspected. It is recom-
mended you visit an INFINITI retailer for this
service. (See “Precautions when starting and driving” (P.5-4).)
Fluid leaks:
Check under the vehicle for fuel,
oil, water or other fluid leaks after the
vehicle has been parked for a while. Water
dripping from the air conditioner after use is
normal. If you should notice any leaks or if
gasoline fumes are evident, check for the
cause and have it corrected immediately.
Radiator and hoses: Check the front of the
radiator and clean off any dirt, insects,
leaves, etc., that may have accumulated.
Make sure the hoses have no cracks, defor-
mation, rot or loose connections.
Underbody: The underbody is frequently
exposed to corrosive substances such as
those used on icy roads or to control dust. It
is very important to remove these sub-
stances, otherwise rust will form on the
floor pan, frame, fuel lines and around the
exhaust system. At the end of winter, the
underbody should be thoroughly flushed
with plain water, being careful to clean
those areas where mud and dirt may accu-
mulate. For additional information, see
“Cleaning exterior” (P.7-2).
Windshield washer fluid*: Check that there
is adequate fluid in the reservoir.

The following descriptions are provided to
give you a better understanding of the
scheduled maintenance items that should
be regularly checked or replaced. The main-
tenance schedule indicates at which mile-
age/time intervals each item requires
service.
In addition to scheduled maintenance, your
vehicle requires that some items be checked
during normal day-to-day operation. Refer
to “General maintenance” (P.9-2).
Items marked with “*” are recommended by
INFINITI for reliable vehicle operation. You
are not required to perform maintenance on
these items in order to maintain the warran-
ties which come with your vehicle. Other
maintenance items and intervals are re-
quired.
When applicable, additional information can
be found in the “8. Do-it yourself” section of
this manual.
NOTE:
INFINITI does not advocate the use of non-
OEM approved aftermarket flushing sys-
tems and strongly advises against perform-
ing these services on an INFINITI product.
Many of the aftermarket flushing systems
use non-OEM approved chemicals or sol-
vents, the use of which has not been
validated by INFINITI.
For recommended fuel, lubricants, fluids,grease, and refrigerant, refer to “Capacities
and recommended fluids/lubricants” (P.10-
2) of this manual.
EMISSION CONTROL SYSTEM
MAINTENANCE
Drive belts*:
Check engine drive belts for wear, fraying or
cracking and for proper tension. Replace any
damaged drive belts.
Engine air filter:
Replace at specified intervals. When driving
for prolonged periods in dusty conditions,
check/replace the filter more frequently.
Engine coolant*:
Replace coolant at the specified interval.
When adding or replacing coolant, be sure to
use only Genuine NISSAN Long Life Anti-
freeze/Coolant (blue) or equivalent with the
proper mixture. (Refer to “Engine cooling
system” (P.8-3) to determine the proper
mixture for your area.)
NOTE:
Mixing any other type of coolant or the use
of non-distilled water may reduce the
recommended service interval of the cool-
ant.
Intercooler coolant:
Intercooler coolant is maintenance-free.
Engine oil and oil filter:
Replace engine oil and oil filter at the
specified intervals. For recommended oil
grade and viscosity refer to “Capacities and
recommended fluids/lubricants” (P.10-2).
Engine valve clearance*:
Inspect only if valve noise increases. Adjust
valve clearance if necessary.
Evaporative emissions control vapor lines*:
Check vapor lines for leaks or looseness.
Tighten connections or replace parts as
necessary.
Fuel lines*:
Check the fuel hoses, piping and connections
for leaks, looseness, or deterioration. Tight-
en connections or replace parts as necessary.
Spark plugs:
Replace at specified intervals. Install new
plugs of the type as originally equipped.
CHASSIS AND BODY MAINTE-
NANCE
Brake lines and cables:
Visually inspect for proper installation.
Check for chafing, cracks, deterioration,
and signs of leaking. Replace any deterio-
rated or damaged parts immediately.
Brake pads, rotors, drums and linings:
Maintenance and schedules9-5
EXPLANATION OF SCHEDULED
MAINTENANCE ITEMS

9-6Maintenance and schedules
Check for wear, deterioration and fluid
leaks. Replace any deteriorated or damaged
parts immediately.
Exhaust system:
Visually inspect the exhaust pipes, muffler
and hangers for leaks, cracks, deterioration,
and damage. Tighten connections or replace
parts as necessary.
In-cabin microfilter:
Replace at specified intervals. When driving
for prolonged periods in dusty conditions,
replace the filter more frequently.
Propeller shaft(s):
Check for damage, looseness, and grease
leakage. (4WD/AWD/RWD)
Steering gear and linkage, axle and suspen-
sion parts, drive shaft boots:
Check for damage, looseness, and leakage
of oil or grease. Under severe driving condi-
tions, inspect more frequently.
Tire rotation:
Rotate tires at the specified interval. When
rotating tires, check for damage and uneven
wear. Replace if necessary. If your vehicle is
equipped with different sized tires in the
front and rear, tires cannot be rotated.
Transmission fluid/oil, differential oil and
transfer case oil:
Visually inspect for signs of leakage atspecified intervals.
To help ensure smooth, safe and economical
driving, INFINITI provides two maintenance
schedules that may be used, depending upon
the conditions in which you usually drive.
These schedules contain both distance and
time intervals, up to 120,000 miles
(192,000 km)/144 months. For most peo-
ple, the odometer reading will indicate when
service is needed. However, if you drive very
little, your vehicle should be serviced at the
regular time intervals shown in the schedule.
After 120,000 miles (192,000 km)/144
months, continue maintenance at the same
mileage/time intervals.
ADDITIONAL MAINTENANCE
ITEMS FOR SEVERE OPERATING
CONDITIONS
Additional maintenance items for severe
operating conditions;
should be performed
on vehicles that are driven under especially
demanding conditions. Additional mainte-
nance items should be performed if you
primarily operate your vehicle under the
following conditions:
. Repeated short trips of less than 5 miles
(8 km).
. Repeated short trips of less than 10 miles
(16 km) with outside temperatures re-
maining below freezing.
MAINTENANCE SCHEDULES

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.
WAJ0357X
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 Index
A
ABS (Anti-lock Braking System) ................... 5-129
Active Lane Control ............................................ 5-25
Active noise cancellation ................................. 5-142
Active sound enhancement ............................ 5-142
Active trace control .......................................... 5-132
Air bag systemFront-seat mounted side-impact
supplemental 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, 2-13
Air cleaner housing filter ................................... 8-15
Air conditioner
Air conditioner operation ............................ 4-37
Air conditioner service ................................ 4-43
Air conditioner specification label ......... 10-13
Air conditioning system refrigerant and
lubricant recommendations ....................... 4-43
Air conditioning system refrigerant and
oil recommendations .................................... 10-7
Automatic air conditioner .......................... 4-38
DUAL mode setting ...................................... 4-41
Heater and air conditioner .......................... 4-37
Servicing air conditioner ............................. 4-43
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 ................................................................. 4-44
Anti-lock Braking System (ABS) ................... 5-129
Appearance care
Exterior appearance care ............................... 7-2
Interior appearance care ................................ 7-5
Apple CarPlay
®...................................................... 4-2
Armrest ...................................................................... 1-7
Around View
®Monitor ...................................... 4-12
Audible reminders ................................................ 2-18
Autolight system .................................................. 2-36
Automatic
Automatic air conditioner .......................... 4-38
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) .............. 5-63
Battery .................................................................... 8-11 Battery replacement, Intelligent Key ......... 3-2
Battery saver system ................................... 2-40
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) ......................... 5-50
Blind Spot Warning (BSW) .............................. 5-40
Brake Anti-lock Braking System (ABS) ............. 5-129
Brake fluid ...................................................... 8-10
Brake force distribution ............................. 5-131
Brake system ............................................... 5-128
Parking brake operation ............................. 5-20
Brake warning light .............................................. 2-11
Break-in schedule .............................................. 5-122
Bulb check/instrument panel ............................ 2-11
Bulb replacement ................................................. 8-22
C
Camera aiding sonar function ......................... 4-26
Capacities and
recommended fluids/lubricants ....................... 10-2
Car phone or CB radio ....................................... 4-45
Card holder ............................................................ 2-52
Catalytic converter Three-way catalyst ......................................... 5-5
Changing intercooler coolant ............................. 8-6
Chassis control ................................................... 5-134
Check tire pressure warning ............................. 2-22
Checking intercooler coolant level .................... 8-6

11-2
Child restraints ..................................................... 1-22LATCH system ............................................... 1-24
Precautions on child restraints .................. 1-22
Child safety ........................................................... 1-20
Child safety rear door lock .................................. 3-6
Chimes Audible reminders .......................................... 2-18
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 .......................... 4-38
Clock ...................................................................... 2-29
Coat hooks ............................................................ 2-52
Cockpit ...................................................................... 2-3
Cold weather driving ........................................ 5-139
Console box ........................................................... 2-51
Coolant
Capacities and recommended fluids/
lubricants .......................................................... 10-2
Changing engine coolant ............................... 8-5
Checking engine coolant level ...................... 8-4
Corrosion protection ............................................. 7-8
Courtesy light ....................................................... 2-60
Cruise control ....................................................... 5-72
Fixed speed cruise control (on
ICC system) ..................................................... 5-91
Intelligent Cruise Control (ICC) ................. 5-75
Cruise indicator .................................................... 2-23 Cup holders ........................................................... 2-49
Current fuel consumption ................................. 2-27
D
Daytime Running Lights (DRL) system ......... 2-41
Defroster switch
Rear window and outside mirror
defroster switch ............................................. 2-35
Dimensions ......................................................... 10-10
Direct Adaptive Steering ................................. 5-126
Distance Control Assist (DCA) ........................ 5-95
Distance to empty ............................................... 2-27
Drive belts .............................................................. 8-13
Drive positioner .................................................... 3-33
Driver assist system indicator .......................... 2-24
Driving Cold weather driving ................................. 5-139
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
Economy
Fuel .................................................................. 5-123
Elapsed time ......................................................... 2-27
Elapsed time and trip odometer ..................... 2-27
Emergency Call (SOS) button .......................... 2-47
Emission control information label ............... 10-12 Emission control system warranty ............... 10-21
Engine
Before starting the engine .......................... 5-14
Break-in schedule ........................................ 5-122
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 ................................... 5-140
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

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 .............................................................. 2-58
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 ................... 2-42
Mirror
Inside mirror .................................................... 3-29
Outside mirrors ............................................. 3-30
Vanity mirror ................................................... 3-32
Monitor Around View
®Monitor ................................ 4-12
RearView Monitor ........................................... 4-3
Moonroof ............................................................... 2-56
Moving Object Detection (MOD) ................... 4-31
N
New vehicle break-in ........................................ 5-122
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 ............................................. 5-125
Parking brake break-in .................................... 5-129 Personal lights ...................................................... 2-58
PERSONAL mode ............................................... 5-24
Phone
Car phone or CB radio ................................ 4-45
Power Power door lock ............................................... 3-4
Power outlet ................................................... 2-46
Power steering system .............................. 5-126
Power windows ............................................. 2-53
Power moonroof ................................................. 2-56
Power steering warning light ........................... 2-16
Pre-crash seat belts with
comfort function ................................................... 1-15
Precautions Braking precautions ................................... 5-128
Child restraints ............................................... 1-22
Cruise control ................................................. 5-72
Maintenance ..................................................... 8-2
Seat belt usage .............................................. 1-12
Supplemental restraint system .................. 1-42
When starting and driving ............................ 5-4
Predictive Forward Collision
Warning (PFCW) ............................................... 5-113
Push starting ............................................................ 6-7
Push-button ignition switch .............................. 5-11R
Radio Car phone or CB radio ................................ 4-45
Rain-sensing auto wiper system ..................... 2-34
Rapid air pressure loss .......................................... 5-9
11-5