2021 INFINITI Q50 ECO mode

SDI2567
Tire and Loading Information label
Seating capacity: The maximum
number of occupants that can be
seated in the vehicle.
Vehicle load limit: See “Vehicle
loading information” (P.10-17).
Original size: The size of the tires
originally installed on the vehicle
at the factory.
Cold tire pressure: Inflate the
tires to this pressure when the
tires are cold. Tires are consid-
ered COLD after the vehicle hasbeen parked for 3 or more hours,
or driven less than 1 mile (1.6 km)
at moderate speeds. The recom-
mended cold tire inflation is set
by the manufacturer to provide
the best balance of tire wear,
vehicle handling, driveability, tire
noise, etc., up to the vehicle’s
GVWR.
Tire size — see “Tire labeling”
(P.8-29).
Spare tire size or compact spare
tire size (if so equipped)
Do-it-yourself8-27

8-32Do-it-yourself
year, including snowy and icy road condi-
tions. All Season tires are identified by ALL
SEASON and/or M&S (Mud and Snow) on
the tire sidewall. Snow tires have better
snow traction than All Season tires and may
be more appropriate in some areas.
Summer tires
INFINITI specifies summer tires on some
models to provide superior performance on
dry roads. Summer tire performance is
substantially reduced in snow and ice. Sum-
mer tires do not have the tire traction rating
M&S on the tire sidewall.
If you plan to operate your vehicle in snowy
or icy conditions, INFINITI recommends the
use of SNOW tires or ALL SEASON tires on
all four wheels.
Snow tires
If snow tires are needed, it is necessary to
select tires equivalent in size and load rating
to the original equipment tires. If you do not,
it can adversely affect the safety and
handling of your vehicle.
Generally, snow tires will have lower speed
ratings than factory equipped tires and may
not match the potential maximum vehicle
speed. Never exceed the maximum speed
rating of the tire.
If you install snow tires, they must be thesame size, brand, construction and tread
pattern on all four wheels.
For additional traction on icy roads, studded
tires may be used. However, some U.S.
states and Canadian provinces prohibit their
use. Check local, state and provincial laws
before installing studded tires. Skid and
traction capabilities of studded snow tires,
on wet or dry surfaces, may be poorer than
that of non-studded snow tires.
Run-flat tires (if so equipped)
Your vehicle is equipped with run-flat tires.
You can continue driving to a safe location
even if they are punctured. Always use run-
flat tires of the specified size on all four
wheels. Mixing tire sizes or construction may
reduce vehicle handling stability. If neces-
sary, contact an INFINITI retailer for assis-
tance.
Frequently check the tire pressure and adjust
pressure of each tire properly. The tire
pressure can be also checked in the vehicle
information display.
It can be difficult to tell if a run-flat tire is
under-inflated or flat. Check the tire pres-
sures as described earlier in this section. If
the tire becomes under-inflated while driv-
ing, the low tire pressure warning light will
illuminate. If the tire becomes flat while
driving, the low tire pressure warning light
and the “Flat Tire - Visit dealer” warning will
appear.
Low tire pressure:
If the vehicle is being driven with low tire
pressure, the low tire pressure warning light
will illuminate.
Flat tire:
If the vehicle is being driven with one or more
flat tires, the low tire pressure warning light
will illuminate continuously and a chime will
sound for 10 seconds. A “Flat Tire - Visit
dealer” warning also appears in the vehicle
information display.
The chime will only sound at the first
indication of a flat tire and the warning light
will illuminate continuously. When the flat
tire warning is activated, have the system
reset and the tire checked, and replaced if
necessary. It is recommended you visit an
INFINITI retailer for these services. Even if
the tire is inflated to the specified COLD tire
pressure, the warning light will continue to
illuminate until the system is reset by an
INFINITI retailer.
If the low tire pressure warning light illumi-
nates continuously and the “Flat Tire - Visit
dealer” warning appears in the vehicle
information display:
. Do not exceed 50 MPH (80 km/h).

8-34Do-it-yourself
the tire chain must be secured or removed to
prevent the possibility of whipping action
damage to the fenders or underbody. If
possible, avoid fully loading your vehicle
when using tire chains. In addition, drive at
a reduced speed. Otherwise, your vehicle
may be damaged and/or vehicle handling
and performance may be adversely affected.
Tire chains must be installed only on the
rear wheels and not on the front wheels.
Never install tire chains on a TEMPORARY
USE ONLY spare tire (if so equipped). Never
install tire chains on a punctured run-flat tire
(if so equipped), as this could damage your
vehicle.
Do not use tire chains on dry roads. Driving
with tire chains in such conditions can cause
damage to the various mechanisms of the
vehicle due to some overstress.
SDI1662
CHANGING WHEELS AND TIRES
Tire rotation (models equipped with
same size tires on all wheels)
INFINITI recommends rotating the
tires at the specified interval shown
in the maintenance schedule. (See the
“9. Maintenance and schedules” sec-
tion. For tire replacing procedure, see
“Jacking up the vehicle and replacing
tires” (P.8-37).)
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 the specification at all times.
It is recommended that wheel nuts be
tightened to the specification at each
tire rotation interval.
WARNING
. After rotating the tires, check
and adjust the tire pressure.
. Do not include the T-type spare
tire or any other small size
spare tire in the tire rotation.
. For additional information re-
garding tires, refer to “Impor-
tant Tire Safety Information”
(US) or “Tire Safety Informa-
tion” (Canada) in the Warranty
Information Booklet.
After the ignition switch is placed in
the ON position, it may take a period
of time for the tire pressure to be
displayed in the vehicle information

8-36Do-it-yourself
.The original tires have built-in
tread wear indicators. When
wear indicators are visible, the
tire(s) should be replaced.
. Tires degrade with age and use.
Have tires, including the spare,
over 6 years old checked by a
qualified technician, because
some tire damage may not be
obvious. Replace the tires as
necessary to prevent tire failure
and possible personal injury.
. Improper service of the spare
tire may result in serious perso-
nal injury. If it is necessary to
repair the spare tire, it is re-
commended you visit an
INFINITI retailer for this ser-
vice.
. For additional information re-
garding tires, refer to “Impor-
tant Tire Safety Information”
(US) or “Tire Safety Informa-
tion” (Canada) in the Warranty
Information Booklet.Replacing wheels and tires
When replacing a tire, use the same size,
tread design, speed rating and load carrying
capacity as originally equipped. (See “Speci-
fications” (P.10-8) for recommended types
and sizes of tires and wheels.)
After the ignition switch is placed in the ON
position, it may take a period of time for the
tire pressure to be displayed in the vehicle
information display while the vehicle is
driven. Depending on the radio wave circum-
stance, tire pressure may not correctly be
displayed.
WARNING
. The use of tires other than those
recommended or the mixed use of
tires of different brands, construc-
tion (bias, bias-belted, radial or run-
flat), or tread patterns can adversely
affect the ride, braking, handling,
ground clearance, body-to-tire clear-
ance, tire chain clearance, speed-
ometer calibration, headlight aim
and bumper height. Some of these
effects may lead to accidents and
could result in serious personal injury.
. For Two-Wheel Drive (2WD) models,
if your vehicle was originally equipped with 4 tires that were the
same size and you are only replacing
2 of the 4 tires, install the new tires
on the rear axle. Placing new tires on
the front axle may cause loss of
vehicle control in some driving condi-
tions and cause an accident and
personal injury.
. If the wheels are changed for any
reason, always replace with wheels
which have the same off-set dimen-
sion. Wheels of a different off-set
could cause premature tire wear,
degrade vehicle handling character-
istics and/or interference with the
brake discs/drums. Such interference
can lead to decreased braking effi-
ciency and/or early brake pad/shoe
wear. See “Wheels and tires” (P.10-
9) of this manual for wheel off-set
dimensions.
. Since the spare tire is not equipped
with the TPMS, when a spare tire is
mounted or a wheel is replaced, the
TPMS will not function and the low
tire pressure warning light will flash
for approximately 1 minute. The light
will remain on after 1 minute. Have
your tires replaced and/or TPMS
system reset as soon as possible. It
is recommended you visit an INFINITI
retailer for these services.

.Replacing tires with those not origin-
ally specified by INFINITI could affect
the proper operation of the TPMS.
. The TPMS sensor may be damaged if
it is not handled correctly. Be careful
when handling the TPMS sensor.
. When replacing the TPMS sensor, the
ID registration may be required. It is
recommended you contact an
INFINITI retailer for ID registration.
. Do not use a valve stem cap that is
not specified by INFINITI. The valve
stem cap may become stuck.
. Be sure that the valve stem caps are
correctly fitted. Otherwise the valve
may be clogged up with dirt and
cause a malfunction or loss of pres-
sure.
. Do not install a damaged or deformed
wheel or tire even if it has been
repaired. Such wheels or tires could
have structural damage and could fail
without warning.
. The use of retread tire is not recom-
mended.
. For additional information regarding
tires, refer to “Important Tire Safety
Information” (US) or “Tire Safety
Information” (Canada) in the War- ranty Information Booklet.
Intelligent All-Wheel Drive (AWD)
models
CAUTION
.
Always use tires of the same type,
size, brand, construction (bias, bias-
belted or radial), and tread pattern
on all four wheels. Failure to do so
may result in a circumference differ-
ence between tires on the front and
rear axles which will cause excessive
tire wear and may damage the trans-
mission, transfer case and differential
gears.
. ONLY use spare tires specified for
the Intelligent AWD model.
If excessive tire wear is found, it is recom-
mended that all four tires be replaced with
tires of the same size, brand, construction
and tread pattern. The tire pressure and
wheel alignment should also be checked and
corrected as necessary. It is recommended
you visit an INFINITI retailer for this service.
Wheel balance
Unbalanced wheels may affect vehicle hand-
ling and tire life. Even with regular use,
wheels can get out of balance. Therefore,
they should be balanced as required.
Wheel balance service should be performed
with the wheels off the vehicle. Spin
balancing the wheels on the vehicle could
lead to mechanical damage.
For additional information regarding tires,
refer to “Important Tire Safety Information”
(US) or “Tire Safety Information” (Canada) in
the INFINITI Warranty Information Booklet.
Care of wheels
See “Cleaning exterior” (P.7-2) for details
about care of the wheels.
JACKING UP THE VEHICLE AND
REPLACING TIRES
Your vehicle is equipped with run-flat tires
and you can continue driving to a safe
location even if they are punctured. (See
“Run-flat tires” (P.6-4) and “Run-flat tires”
(P.8-32).)
This section contains the information about
the vehicle jack-up procedures and the tire
replacement.
Do-it-yourself8-37

Severe maintenance:.Inspect brake pads and rotors.Inspect exhaust system.Inspect steering gear and linkage.Inspect axle and suspension parts.Inspect propeller shaft (AWD models).Inspect drive shaft boots (AWD models).Replace brake fluid.Replace transfer fluid.Replace differential gear oil
(1) Replace the drive belts if found damaged.
(2) Inspect the clearance between the brake pedal
and the switches.
(3) If the oil replacement indicator is displayed,
change the engine oil and filter as soon as
possible. After replacing the engine oil, reset the
display.
(4) If your vehicle is equipped with different sized
tires in the front and rear, tires cannot be rotated.
105,000 Miles/126 Months/
168,000 Km
Standard maintenance:.Replace In-cabin microfilter.Replace Intelligent Key battery.Perform tire rotation (1).Replace spark plugs (2) (3).Replace engine coolant* (4) Severe maintenance:
.Inspect brake pads and rotors.Inspect exhaust system.Inspect steering gear and linkage.Inspect axle and suspension parts.Inspect propeller shaft (AWD models).Inspect drive shaft boots (AWD models)
(1) If your vehicle is equipped with different sized
tires in the front and rear, tires cannot be rotated.
(2) Performed based on the number of miles only.
(3) Replace spark plug when the plug gap exceeds
0.043 in (1.1 mm) even if within specified periodic
replacement mileage.
(4) First replacement interval is 105,000 miles
(168,000 km) or 84 months. After first replace-
ment, replace every 75,000 miles (120,000 km)
or 60 months.
*: Maintenance items and intervals with "*" are
recommended by INFINITI for reliable vehicle
operation. The owner need not perform such
maintenance in order to maintain the emission
warranty or manufacturer recall liability. Other
maintenance items and intervals are required.
Maintenance and schedules9-17

10-2Technical and consumer information
The following are approximate capacities. The actual refill capacities may be a little different. When refilling, follow the procedure
instructed in the “8. Do-it-yourself” section to determine the proper refill capacity.
Fluid typeCapacity (approximate)
Recommended Fluids/Lubricants
Metric
Measure US
Measure Imperial
Measure
Fuel 76 L 20 gal 16-5/8 gal

See “Fuel information” (P.10-4).
Engine oil
*1Drain and refill*1: For additional information,
see “Engine oil” (P.8-7). Two-Wheel
Drive (2WD)
model
With oil filter
change
5.3 L 5-5/8 qt 4-5/8 qt


Genuine “NISSAN Motor Oil 0W-20 SN” (or equivalent) is recommended.


If the above motor oil (or engine oil) is not available, a synthetic 0W-20 GF-
5 SN motor oil (or engine oil) may be used. Damage caused by the use of
motor oil (or engine oil) other than as recommended is not covered under
INFINITI’s new vehicle limited warranty. For additional information, see
“Engine oil and oil filter recommendation” (P.10-6).
Without oil filter
change
5.1 L 5-3/8 qt 4-1/2 qt
All-Wheel
Drive (AWD)
model With oil filter
change
5.9 L 6-1/4 qt 5-1/4 qt
Without oil filter
change 5.7 L 6 qt 5 qt
Engine coolant Total (with reservoir)
Standard and premium grade 9.3 L 9-7/8 qt 8-1/8 qt


Pre-diluted Genuine NISSAN Long Life Antifreeze/Coolant (blue) or
equivalent
Total (with reservoir)
Sport grade 10.4 L
11 qt 9-1/8 qt
Reservoir 0.5 L1/2 qt 1/2 qt
Intercooler coolant Total (with reservoir) 3.2 L 3-3/8 qt 2-7/8 qt
Reservoir 0.4 L3/8 qt 3/8 qt
Automatic Transmission Fluid (ATF)
———


Genuine NISSAN Matic S ATF or equivalent


INFINITI recommends using Genuine NISSAN Matic S ATF (or equivalent)
ONLY in INFINITI automatic transmissions. Do not mix with other fluids.
Using fluids that are not equivalent to Genuine NISSAN Matic S ATF may
damage the automatic transmission. Damage caused by the use of fluids
other than as recommended is not covered under the INFINITI’s new
vehicle limited warranty.
Differential gear oil Front
———


Genuine NISSAN Differential Oil Hypoid Super GL-5 80W-90 or
equivalent conventional (non-synthetic) oil.
Rear ———

Genuine NISSAN HYPOID FLUID·S1 GL-5 75W-80 or equivalent
Transfer fluid
———


Genuine NISSAN Matic J ATF or equivalent


INFINITI recommends using Genuine NISSAN Matic J ATF (or equivalent)
ONLY in INFINITI transfers. Do not mix with other fluids. Using fluids that
are not equivalent to Genuine NISSAN Matic J ATF may damage the
transfer. Damage caused by the use of fluids other than as recommended is
not covered under the INFINITI’s new vehicle limited warranty.
Brake fluid Refill to the proper oil level according to the
instructions in the “8. Do-it-yourself” section.


Genuine NISSAN Super Heavy Duty Brake Fluid
*2or equivalent DOT 3*2: Available in mainland U.S.A. through an INFINITI retailer.
Multi-purpose grease ———

NLGI No. 2 (Lithium soap base)
CAPACITIES AND RECOMMENDED
FLUIDS/LUBRICANTS

10-20Technical and consumer information
Do not tow a trailer with your
vehicle.
FLAT TOWING
Towing your vehicle with all four wheels on
the ground is sometimes called flat towing.
This method is sometimes used when towing
a vehicle behind a recreational vehicle, such
as a motor home.
CAUTION
.Failure to follow these guidelines can
result in severe transmission damage.
. Whenever flat towing your vehicle,
always tow forward, never back-
ward.
. DO NOT tow any Automatic Trans-
mission (AT) vehicle with all four
wheels on the ground (flat towing).
Doing so WILL DAMAGE internal
transmission parts due to lack of
transmission lubrication.
. DO NOT tow any All-Wheel Drive
(AWD) vehicle with any of the wheels
on the ground. Doing so may cause
serious and expensive damage to the
powertrain.
. For emergency towing procedures
refer to “Towing recommended by INFINITI” (P.6-9).
Automatic Transmission
All-Wheel Drive (AWD) models:
Do not tow an AWD vehicle with any of the
wheels on the ground.
Two-Wheel Drive (2WD) models:
To tow a vehicle equipped with an automatic
transmission, an appropriate vehicle dolly
MUST
be placed under the towed vehicle’s
drive wheels. Alwaysfollow the dolly man-
ufacturer’s recommendations when using
their product. DOT (Department Of Transportation) Qual-
ity Grades: All passenger car tires must
conform to federal safety requirements in
addition to these grades.
Quality grades can be found where applic-
able on the tire sidewall between tread
shoulder and maximum section width. For
example:
Treadwear 200 Traction AA Temperature A
TREADWEAR
The treadwear grade is a comparative rating
based on the wear rate of the tire when
tested under controlled conditions on a
specified government test course. For ex-
ample, a tire graded 150 would wear one
and one-half (1 1/2) times as well on the
government course as a tire graded 100.
The relative performance of tires depends
upon actual conditions of their use, however,
and may depart significantly from the norm
due to variations in driving habits, service
practices and differences in road character-
istics and climate.
TOWING A TRAILERUNIFORM TIRE QUALITY GRADING