maintenance INFINITI QX50 2020 Workshop Manual

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, varyingroad surfaces, individual driving habits and
vehicle usage, additional or more frequent
maintenance may be required.
After90,000 miles (144,000 km)/144 months,
continue maintenance at the same
mileage/time interval.
STANDARD 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
Air cleaner filter NOTE (1) R
Brake fluid RRR
Brake lines and cables IIIIII
Brake pads and rotors I IIIII
CVT fluid NOTE (2)IIIIII
Drive belt NOTE (3) I*I*I*
Engine coolant* NOTE (4)(5)
Engine oil & oil filter NOTE (6)RRRRRR
EVAP vapor lines & Fuel lines I*I*I*
Exhaust system III
Fuel filter NOTE (7)
In-cabin microfilter RRRR
Intelligent Key battery IR RR
Intake & exhaust valve clearance* NOTE (8)
Propeller shaft & drive shaft boots
(AWD models) I IIIII
Spark plugs NOTE (9) Replace every 105,000 miles (168,000 km)
Steering gear & linkage, axle &
suspension parts  III
Tire rotation NOTE (10)
Transfer fluid & differential gear oil NOTE (11)IIIIII
STANDARD MAINTENANCE
Maintenance and schedules9-9

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
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
(138) 138 86.25
(138) 138 90
(144) 144
Air cleaner filter NOTE (1) R R
Brake fluid RRR
Brake lines and cables IIIIII
Brake pads and rotors IIIIII
CVT fluid NOTE (2) IIIIII
Drive belt NOTE (3) I* I* I* I* I* I*
Engine coolant* NOTE (4)(5)
Engine oil & oil filter NOTE (6) RRRRRR
EVAP vapor lines & Fuel lines I* I* I*
Exhaust system III
Fuel filter NOTE (7)
In-cabin microfilter RRRR
Intelligent Key battery RRRR
Intake & exhaust valve clearance* NOTE (8)
Propeller shaft & drive shaft boots
(AWD models) IIIIII
Spark plugs NOTE (9)Replace every 105,000 miles (168,000 km)
Steering gear & linkage, axle &
suspension parts  III
Tire rotation NOTE (10)
Transfer fluid & differential gear oil NOTE (11)IIIIII
9-10Maintenance and schedules

NOTE:
Maintenance items with “” should be performed more frequently according to “ Maintenance under severe driving conditions”.
(1) If operating mainly in dusty conditions, more frequent maintenance may be required.
(2) If towing a trailer, using a camper or a car-top carrier or driving on rough or muddy roads, inspect CVT fluid deterioration every
60,000 miles (96,000 km), then change CVT fluid if necessary. And if the inspection is not performed, change (not just inspect) CVT fluid
every 60,000 miles (96,000 km).
(3) 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.
(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) Periodic maintenance is not required.
(8) Periodic maintenance is not required. However, if valve noise increased, inspect valve clearance.
(9) Replace spark plug when the plug gap exceeds 0.045 in (1.25 mm) even if within specified replacement mileage.
(10) For additional information on tire rotation, refer to “General maintenance” in the section
(11) If towing a trailer, using a camper or a car-top carrier, or driving on rough or muddy roads, change (not just inspect) oil every 20,000 miles
(32,000 km) or 24 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 schedules9-11

The maintenance intervals shown on the pre-
ceding pages are for normal operating condi-
tions. If the vehicle is mainly operated under
severe driving conditions as shown below,
more frequent maintenance must be per-
formed on the following items as shown in
the table.SEVERE DRIVING 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.
∙ 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.
Maintenance operation: Inspect = Inspect
and correct or replace as necessary.
Maintenance operation: Inspect = Inspect and correct or replace as necessary.
Maintenance item Maintenance operation Maintenance interval
Brake fluid ReplaceEvery 7,500 miles (12,000 km) or 12 months
Brake pads & rotors InspectEvery 3,750 miles (6,000 km) or 6 months
Exhaust system InspectEvery 3,750 miles (6,000 km) or 6 months
Propeller shaft & drive shaft boots (AWD models) InspectEvery 3,750 miles (6,000 km) or 6 months
Steering gear & linkage, axle & suspension parts InspectEvery 3,750 miles (6,000 km) or 6 months
MAINTENANCE UNDER SEVERE
OPERATING CONDITIONS
9-12Maintenance and schedules

3,750 Miles (6,000 km) or 6
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:7,500 Miles (12,000 km) or 12
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:11,250 Miles (18,000 km) or 18
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:
15,000 Miles (24,000 km) or 24
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp: 18,750 Miles (30,000 km) or 30
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:22,500 Miles (36,000 km) or 36
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:
26,250 Miles (42,000 km) or 42
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp: 30,000 Miles (48,000 km) or 48
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:33,750 Miles (54,000 km) or 54
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:
MAINTENANCE LOG
Maintenance and schedules9-13

37,500 Miles (60,000 km) or 60
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:41,250 Miles (66,000 km) or 66
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:45,000 Miles (72,000 km) or 72
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:
48,750 Miles (78,000 km) or 78
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp: 52,500 Miles (84,000 km) or 84
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:56,250 Miles (90,000 km) or 90
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:
60,000 Miles (96,000 km) or 96
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp: 63,750 Miles (102,000 km) or 102
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:67,500 Miles (108,000 km) or 108
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:
9-14
Maintenance and schedules

71,250 Miles (114,000 km) or 114
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:75,000 Miles (120,000 km) or 120
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:78,750 Miles (126,000 km) or 126
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:
82,500 Miles (132,000 km) or 132
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp: 86,250 Miles (138,000 km) or 138
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:90,000 Miles (144,000 km) or 144
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:
Maintenance and schedules9-15

MEMO
9-16Maintenance 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 all–wheel drive vehicle
(if so equipped) ............................. 10-28
Flat towing for front 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 Data

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