2019 INFINITI QX50 engine

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 90,000 miles
(144,000 km)/144 months. For most
people, 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 sched-
ule.
After 90,000 miles
(144,000 km)/144 months, continue main-
tenance at the same mileage/time intervals.
ADDITIONAL MAINTENANCE
ITEMS FOR SEVERE OPERATING
CONDITIONS
Additional maintenance items for severe op-
erating conditionsshould be performed on
vehicles that are driven under especially de-
manding conditions. Additional maintenance
items should be performed if you primarily
operate your vehicle under the following con-
ditions:
∙ 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.
∙ Operating in hot weather in stop-and-go “rush hour” traffic.
∙ Extensive idling and/or low speed driving for long distances, such as police, taxi or
door-to-door delivery use.
∙ Driving in dusty conditions.
∙ Driving on rough, muddy or salt spread roads.
∙ Towing a trailer, using a camper or a car-top carrier.
NOTE:
For vehicles operated in Canada, both stan-
dard and severe maintenance items should
be performed at every interval.
OIL CONTROL SYSTEM
Your vehicle is equipped with oil control sys-
tem. It calculates engine oil and filter change
intervals based on driving conditions. Driving
in the following severe conditions will shorten
the engine oil and filter change interval.
MAINTENANCE SCHEDULES
Maintenance and schedules9-7

How driving conditions affect OCS display
timing
ConditionsDriving Scene Display timing
Light ∙ Freeway driving
∙ City driving (flat/moderate hills)
∙ No towing or heavy loads
∙ No extended engine idling Normal
Extreme ∙ Repeated short trips of less than 5 miles (8 km).
∙ Repeated short trips of less than 10 miles (16 km) with outside temperatures remaining below
freezing.
∙ Operating in hot weather in stop-and-go “rush hour” traffic.
∙ Extensive idling and/or low speed driving for long distances, such as police, taxi or door-to-
door delivery use.
∙ Towing a trailer or caravan, or using a car-top carrier.
∙ Driving with frequent use of braking or in mountainous areas.
∙ Sustained high speed driving. Early
CAUTION
∙ If the oil replacement indicator is dis-
played, change the engine oil within two
weeks or less than 500 miles (800 km).
∙ Operating your vehicle with deteriorated oil can damage the engine.
∙ If your oil replacement indicator resets prematurely or becomes inoperative,
please change the oil within six months or
3,750 miles (6,000 km) from your last oil
change.
9-8Maintenance and schedules

The following tables show the standard
maintenance schedule. Depending upon
weather and atmospheric conditions, varying
road surfaces, individual driving habits and
vehicle usage, additional or more frequent
maintenance may be required.After
90,000 miles (144,000 km)/144 months,
continue maintenance at the same
mileage/time interval.
EMISSION CONTROL SYSTEM MAINTENANCE
Abbreviations: I = Inspect and correct or replace as necessary, R = Replace
MAINTENANCE OPERATION
Perform at number of miles, kilometers or months, whichever comes first. Miles x 1,000
(km x 1,000) Months MAINTENANCE INTERVAL
3.75 (6)6 7.5
(12) 12 11.25
(18)18 15
(24) 24 18.75
(30)30 22.5
(36) 36 26.25
(42)42 30
(48) 48 33.75
(54)54 37.5
(60) 60 41.25
(66)66 45
(72) 72
Drive belt See NOTE (1) I*I*I*
Air cleaner filter See NOTE (2) R
EVAP vapor lines I*I*I*
Fuel lines I*I*I*
Fuel filter See NOTE (3)
Engine coolant* See NOTE (4)(5)
Engine oil See NOTE (6)RRRRRR
Engine oil filter See NOTE (6)RRRRRR
Spark plugs See NOTE (7)Replace every 105,000 miles (168,000 km)
Intake and exhaust valve clearances* See NOTE (8)
STANDARD MAINTENANCE
Maintenance and schedules9-9

MAINTENANCE OPERATION
Perform at number of miles, kilometers or months, whichever comes first. Miles x 1,000
(km x 1,000) Months MAINTENANCE INTERVAL
48.75 (78)78 52.5
(84) 84 56.25
(90)90 60
(96) 96 63.75
(102) 102 67.5
(108) 108 71.25
(114) 114 75
(120) 120 78.75
(126) 126 82.5
(132) 132 86.25
(138) 138 90
(144) 144
Drive belt See NOTE (1)I*I*I*I*I*I*
Air cleaner filter See NOTE (2)R R
EVAP vapor lines I*I*I*
Fuel lines I*I*I*
Fuel filter See NOTE (3)
Engine coolant* See NOTE (4)(5)
Engine oil See NOTE (6)RRRRRR
Engine oil filter See NOTE (6)RRRRRR
Spark plugs See NOTE (7)Replace every 105,000 miles (168,000 km)
Intake and exhaust valve clearances* See NOTE (8)
NOTE:
(1) After 30,000 miles (48,000 km) or 48 months, inspect every 7,500 miles (12,000 km) or 12 months. Replace the drive belts if found
damaged.
(2) If operating mainly in dusty conditions, more frequent maintenance may be required.
(3) Periodic maintenance is not required.
(4) First replacement interval is 105,000 miles (168,000 km) or 84 months. After first replacement, replace every 75,000 miles
(120,000 km) or 60 months.
(5) Use only Genuine NISSAN Long Life Antifreeze/Coolant (blue) or equivalent with proper mixture ratio of 50% antifreeze and 50%
demineralized or distilled water. Mixing any other type of coolant or the use of non-distilled water may reduce the life expectancy of the
factory fill coolant.
(6) If the oil replacement indicator is displayed, change the engine oil and filter within two weeks or less than 500 miles (800 km)
(7) Replace spark plug when the plug gap exceeds 0.045 in (1.15 mm) even if within specified periodic replacement mileage.
(8) Periodic maintenance is not required. However, if valve noise increased, inspect valve clearance.
* 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.
9-10Maintenance and schedules

10 Technical and consumer information
Recommended fluids/lubricants and capacities . . 10-2Fuel recommendation ....................... 10-3
Engine oil and oil filter recommendations .....10-6
Air conditioner system refrigerant and oil
recommendations ........................... 10-7
Specifications .................................. 10-8
Engine ...................................... 10-8
Wheels and tires ............................ 10-9
Dimensions and weights .....................10-9
When traveling or registering in another
country ....................................... 10-10
Vehicle identification .......................... 10-10
Vehicle Identification Number (VIN) plate . . . 10-10
Vehicle identification number
(chassis number) ........................... 10-10
Engine serial number ....................... 10-11
F.M.V.S.S./C.M.V.S.S. certification label .....10-11
Emission control information label ..........10-11
Tire and Loading Information label ..........10-12
Air conditioner specification label ...........10-12
Installing front license plate ....................10-12Vehicle loading information
....................10-14
Terms ..................................... 10-14
Vehicle load capacity ....................... 10-15
Securing the load ........................... 10-16
Loading tips ............................... 10-17
Measurement of weights ...................10-17
Towing a trailer ............................... 10-18
Maximum load limits ....................... 10-19
Towing load/specification ..................10-22
Towing safety ............................. 10-23
Flat towing for front wheel drive vehicle
(if so equipped) ............................. 10-28
Flat towing for all–wheel drive vehicle
(if so equipped) ............................. 10-28
Uniform tire quality grading ....................10-29
Emission control system warranty .............10-30
Reporting safety defects ......................10-30
Readiness for Inspection/Maintenance (I/M)
test ........................................... 10-31
Event DataRecorders

(EDR)................... 10-32
Owner’s Manual/Service Manual order
information ................................... 10-33

The following are approximate capacities. The actual refill capacities may be slightly different. When refilling, follow the procedure described
in the “Do-it-yourself” section to determine the proper refill capacity.
Fluid typeCapacity (approximate) Recommended Fluids/Lubricants
Metric
Measure US
Measure Imperial
Measure
Fuel 60 L 15-7/8 gal 13-1/4 gal• For additional information, refer to “Fuel recommendation” in this
section.
Engine oil*1
Drain and refill
*1 For additional information,
refer to “Engine oil” in the “Do-it-
yourself” section of this manual. With oil filter
change 4.7 L 5 qt 4-1/8 qt
• Genuine “Nissan Motor Oil Ester 5W-30 SN” is recommended.
• If the above motor oil is not available, use an equivalent motor oil that
matches the above grade and viscosity. For additional information, re-
fer to “Engine oil and oil filter recommendations” in this section.
Without oil filter
change 4.4 L 4-5/8 qt 3-7/8 qt
Engine coolant
(with reservoir) 7.7 L 2 gal 1-3/4 gal• Pre-diluted Genuine NISSAN Long Life Antifreeze/Coolant (blue) or
equivalent
Continuously Variable Transmission (CVT) fluid ———• Genuine NISSAN CVT Fluid NS-3
• INFINITI recommends using Genuine NISSAN CVT Fluid NS-3 (or
equivalent) ONLY in INFINITI CVTs. Do not mix with other fluids. Us-
ing fluids that are not equivalent to Genuine NISSAN CVT Fluid NS-3
may damage the CVT. 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 ———• Genuine NISSAN HYPOID FLUID•S1 GL-5 75W-80 or equivalent
• The use of differential gear oil other than the specified may cause ve-
hicle malfunctions and result in non-warranty vehicle repairs.
Transfer oil ———• Genuine NISSAN Differential Oil Hypoid Super GL-5 80W-90 or
equivalent conventional (non-synthetic) oil
Brake fluid ———• Genuine NISSAN Super Heavy Duty Brake Fluid*2 or equivalent DOT
3
*2: Available in mainland USA through an INFINITI retailer.
Multi-purpose grease ——— • NLGI No. 2 (Lithium Soap base)
RECOMMENDED FLUIDS/
LUBRICANTS AND CAPACITIES
10-2Technical and consumer information

∙ Do not use fuel that contains the octanebooster methylcyclopentadienyl manga-
nese tricarbonyl (MMT). Using fuel con-
taining MMT may adversely affect ve-
hicle performance and vehicle emissions.
Not all fuel dispensers are labeled to indi-
cate 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 reformu-
lated gasoline.
∙ U.S. government regulations require ethanol dispensing pumps to be identi-
fied by a small, square, orange and black
label with the common abbreviation or
the appropriate percentage for that
region.
Gasoline specifications
INFINITI recommends using gasoline that
meets the World-Wide Fuel Charter
(WWFC) specifications where it is available.
Many of the automobile manufacturers de-
veloped this specification to improve emis-
sion control system and vehicle performance.
Ask your service station manager if the gaso-
line meets the WWFC specifications.
Reformulated gasoline
Some fuel suppliers are now producing refor-
mulated gasolines. These gasolines are spe-
cially designed to reduce vehicle emissions.
INFINITI supports efforts towards cleaner air
and suggests that you use reformulated
gasoline when available.
Gasoline containing oxygenates
Some fuel suppliers sell gasoline containing
oxygenates such as ethanol, MTBE and
methanol with or without advertising their
presence. INFINITI does not recommend the
use of fuels of which the oxygenate content
and the fuel compatibility for your INFINITI
cannot be readily determined. If in doubt, ask
your service station manager.
If you use oxygenate-blend gasoline, please
take the following precautions as the usage
of such fuels may cause vehicle performance
problems and/or fuel system damage.
∙ The fuel should be unleaded and have an
octane rating no lower than that recom-
mended for unleaded gasoline.
∙ If an oxygenate-blend other than
methanol blend is used, it should contain
no more than 15% oxygenate. ∙
If a methanol blend is used, it should con-
tain no more than 5% methanol (methyl
alcohol, wood alcohol). It should also
contain a suitable amount of appropri-
ate cosolvents and corrosion inhibitors.
If not properly formulated with appro-
priate cosolvents and corrosion inhibi-
tors, such methanol blends may cause
fuel system damage and/or vehicle per-
formance problems. At this time, suffi-
cient data is not available to ensure that
all methanol blends are suitable for use in
INFINITI vehicles.
If any driveability problems such as engine
stalling and difficult hot-starting are experi-
enced after using oxygenate-blend fuels, im-
mediately change to a non-oxygenate fuel or
a fuel with a low blend of MTBE.
Take care not to spill gasoline during refuel-
ing. Gasoline containing oxygenates can
cause paint damage.
E–15 fuel
E-15 fuel is a mixture of approximately 15%
fuel ethanol and 85% unleaded gasoline.
E-15 can only be used in vehicles designed to
run on E-15 fuel. U.S. government regula-
tions require fuel ethanol dispensing pumps
to be identified with small, square, orange
10-4Technical and consumer information

and black label with the common abbrevia-
tion or the appropriate percentage for that
region.
E–85 fuel
E-85 fuel is a mixture of approximately 85%
fuel ethanol and 15% unleaded gasoline.
E-85 can only be used in a Flexible Fuel Ve-
hicle (FFV). Do not use E-85 in your vehicle.
U.S. government regulations require fuel
ethanol dispensing pumps to be identified by
a small, square, orange and black label with
the common abbreviation or the appropriate
percentage for that region.
Fuel containing MMT
MMT, or methylcyclopentadienyl manganese
tricarbonyl, is an octane boosting additive.
INFINITI does not recommend the use of fuel
containing MMT. Such fuel may adversely
affect vehicle performance, including the
emissions control system. Note that while
some fuel pumps label MMT content, not all
do, so you may have to consult your gasoline
retailer for more details.
Aftermarket fuel additives
INFINITI does not recommend the use of any
aftermarket fuel additives (for example, fuel
injector cleaner, octane booster, intake valve
deposit removers, etc.) which are sold com-
mercially. Many of these additives intended
for gum, varnish or deposit removal may con-
tain active solvents or similar ingredients that
can be harmful to the fuel system and engine.
Octane rating tips
Using unleaded gasoline with an octane rat-
ing lower than recommended can cause per-
sistent, heavy “spark knock.” (“Spark knock”
is a metallic rapping noise.) If severe, this can
lead to engine damage. If you detect a per-
sistent heavy spark knock even when using
gasoline of the stated octane rating, or if you
hear steady spark knock while holding a
steady speed on level roads, it is recom-
mended that you have an INFINITI retailer
correct the condition. Failure to correct the
condition is misuse of the vehicle, for which
INFINITI is not responsible.Incorrect ignition timing may result in spark
knock, after-run and/or overheating, which
may cause excessive fuel consumption or en-
gine damage. If any of the above symptoms
are encountered, have your vehicle checked.
It is recommended that you visit an INFINITI
retailer.
However, now and then you may notice light
spark knock for a short time while accelerat-
ing or driving up hills. This is not a cause for
concern, because you get the greatest fuel
benefit when there is light spark knock for a
short time under heavy engine load.
Technical and consumer information10-5