spark plugs replace INFINITI QX60 2023 Owners Manual

8 Do-it-yourself
Maintenance precautions........................8-2
Engine compartment check locations .............8-3
Engine cooling system .......................... 8-4
Checking engine coolant level .................8-5
Changing engine coolant ......................8-5
Engine oil ........................................8-6
Checking engine oil level .......................8-6
Changing engine oil and oil filter ...............8-6
Automatic Transmission Fluid (ATF) ............8-10
Brake fluid ...................................... 8-11
Windshield-washer fluid ......................... 8-11
Windshield-washer fluid reservoir .............8-11
Battery ........................................ 8-13
Jump starting ............................... 8-14
Variable voltage control system ................8-15
Drive belt ...................................... 8-15
Spark plugs .................................... 8-16
Replacing spark plugs ....................... 8-16
Air cleaner ..................................... 8-17
In-cabin microfilter .......................... 8-17Windshield wiper blades
........................ 8-18
Cleaning .................................... 8-18
Replacing ................................... 8-18
Brakes ......................................... 8-20
Fuses .......................................... 8-20
Engine compartment ........................ 8-21
Passenger compartment ....................8-22
Battery replacement ........................... 8-24
INFINITI Intelligent Key .....................8-24
Lights ......................................... 8-26
Headlights .................................. 8-26
Exterior and interior lights ...................8-26
Wheels and tires ............................... 8-28
Tire pressure ................................ 8-28
Tire labeling ................................ 8-33
Types of tires ............................... 8-37
Tire chains .................................. 8-38
Changing

wheels and tires ................... 8-39

1. Visually inspect the belt for signs of un-usual wear, cuts, fraying or looseness. If
the belt is in poor condition or is loose,
have it replaced or adjusted. It is recom-
mended that you visit an INFINITI retailer
for this service.
2. Have the belt checked regularly for condi- tion and tension in accordance with the
maintenance schedule found in your
"Maintenance and schedules" section of
this manual.
REPLACING SPARK PLUGS
Iridium-tipped spark plugs
It is not necessary to replace iridium-tipped
OAspark plugs as frequently as conventional
type spark plugs because they last much lon-
ger. Follow the maintenance log shown in the
"Maintenance and schedules" section of this
manual. Do not service iridium-tipped spark
plugs by cleaning or regapping.
• Always replace spark plugs with recom-
mended or equivalent ones.
WARNING
Be sure the engine and ignition switch are
off and that the parking brake is engaged
securely.
CAUTION
Be sure to use the correct socket to remove
the spark plugs. An incorrect socket can
damage the spark plugs.
If replacement is required, it is recommended
that you visit an INFINITI retailer for this
service.
SDI1895
SPARK PLUGS
8-16Do-it-yourself

Engine coolant*:Replace coolant at the
specified interval. When adding or replacing
coolant, be sure to use only Genuine NISSAN
Long Life Antifreeze/Coolant (blue) or
equivalent with the proper mixture. (For ad-
ditional information on the proper mixture for
your area, see “Engine cooling system”
(P. 8-4).)
NOTE: Mixing any other type of coolant or
the use of non-distilled water may reduce
the recommended service interval of the
coolant.
Engine oil and oil filter: Replace engine oil
and oil filter at the specified intervals. For
recommended oil grade and viscosity, see
“Recommended fluids/lubricants and capaci-
ties” (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 filter: Periodic maintenance is not re-
quired. (in-tank type filter) Fuel lines*:
Check the fuel hoses, piping and
connections for leaks, looseness, or deterio-
ration. Tighten connections or replace parts
as necessary.
Spark plugs: Replace at specified intervals.
Install new plugs of the same type as origi-
nally equipped.
CHASSIS AND BODY
MAINTENANCE:
Brake lines and cables: Visually inspect for
proper installation. Check for chafing, cracks,
deterioration, and signs of leaking. Replace
any deteriorated or damaged parts
immediately.
Brake pads and rotors: Check for wear, de-
terioration and fluid leaks. Replace any dete-
riorated or damaged parts immediately.
Exhaust system: Visually inspect the exhaust
pipes, muffler and hangers for leaks, cracks,
deterioration, and damage. Tighten connec-
tions or replace parts as necessary.
In-cabin microfilter: Replace at specified in-
tervals. When driving for prolonged periods in
dusty conditions, replace the filter more
frequently. Propeller shaft(s):
Check for damage, loose-
ness, and grease leakage. (AWD)
Steering gear and linkage, axle and suspen-
sion parts, drive shaft boots: Check for dam-
age, looseness, and leakage of oil or grease.
Under severe driving conditions, inspect more
frequently.
Tire rotation: Rotate tires at the specified
interval shown in the maintenance schedule.
When rotating tires, check for damage and
uneven wear. Replace if necessary.
Transmission fluid/oil, differential oil and
transfer case oil: Visually inspect for signs of
leakage at specified intervals.
Replace at specified intervals.
9-6Maintenance and schedules

Severe use maintenance:
Inspections:
• Brake pads and rotors
• Exhaust system
• Drive shaft boots
• Propeller shaft (AWD models)
• Steering gear and linkage, axle and suspen-sion parts
Essential:
• Replace brake fluid
• Replace differential oil (AWD models)
• Replace transfer case oil (AWD models)
* 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 emis-
sion warranty or manufacturer recall liability.
Other maintenance items and intervals are
required.
(5) If the oil replacement indicator is dis-
played, change the engine oil and filter within
two weeks or less than 500 miles (800 km).105,000 miles/(168,000 km)/
126 months
Perform at number of miles, kilometers or
months, whichever comes first.
Standard maintenance:
Essential:
• Replace in-cabin microfilter
• Replace Intelligent Key battery
• Replace spark plugs (6)(7)
• Replace engine coolant* (3)(4)
Severe use maintenance:
Inspections:
• Brake pads and rotors
• Exhaust system
• Drive shaft boots
• Propeller shaft (AWD models)
• Steering gear and linkage, axle and suspen- sion parts
* 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 emis-
sion warranty or manufacturer recall liability.
Other maintenance items and intervals are
required. (3) 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.
(4) 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) Performed based on the number of miles
only.
(7) Replace spark plug when the plug gap
exceeds 0.053 in (1.35 mm) even if within
specified replacement mileage.
Maintenance and schedules9-19

Seat belt extenders............1-24Seat belt maintenance...........1-25Seat belts.............. .1-17, 7-7Three-point type with retractor.....1-21Seat belt extenders..............1-24Seat belt warning light........1-20, 2-16Seat massage switch.............2-88Seatback pockets............. .2-101Seats
Adjustment................. .1-2Armrests.................. .1-8Front seats..................1-2Heated seats................2-84Seats/floor mats.............7-5, 7-7Security system
(INFINITI vehicle immobilizer system),
engine start
..........2-72, 3-3, 5-15Security systemsVehicle security system..........2-71Self-adjusting brakes............ .8-20Service manual order form.........10-36Servicing air conditioner...........4-36Smart Rear View Mirror...........3-34Spark plug replacement...........8-16Spark plugs.................. .8-16Specifications.................10-8Speedometer...............2-6, 2-7SRS warning label...............1-74Stability control...............5-168Standard maintenance.............9-9Starting
Before starting the engine........5-16Jump starting........... .6-12, 8-14
Precautions when starting and
driving................ .5-4, 5-10Push starting................6-14Starting the engine.............5-16Starting the engine............. .5-16Steering
Power steering system.........5-164Steering Assist switch
(for vehicles with ProPILOT Assist). . . .2-88Steering wheel............... .3-30Stop light................... .8-26Storage....................2-100Sun visors....................3-32Sunglasses case...............2-103Sunglasses holder..............2-103Sunroof................ .2-112, 7-5Supplemental air bag warning labels. . . .1-74Supplemental air bag warning
light.................. .1-75, 2-16Supplemental front impact air bag
system..................... .1-62Supplemental restraint system
Information and warning labels.....1-74Precautions on supplemental restraint
system................... .1-54Supplemental restraint system
(Supplemental air bag system).......1-54Switch
Autolight switch............. .2-78Automatic power window switch. . .2-110Hazard warning flasher switch......6-2Headlight aiming control.........2-82Headlight and turn signal switch.....2-77Headlight control switch.........2-77
Instrument brightness control......2-83Power door lock switch...........3-5Rear window and outside mirror defroster
switch................... .2-77Rear window wiper and washer
switches...................2-76Turn signal switch.............2-83
T
Tachometer.................. .2-8Temperature gauge
Engine coolant temperature gauge. . . .2-9Theft(INFINITI vehicle immobilizer system),
engine start
..........2-72, 3-3, 5-15Three-way catalyst.............. .5-4Tire
Flat tire................ .6-3, 6-4Spare tire...............6-5, 8-41Tire and Loading Information label. .10-12Tire chains................ .8-38Tire pressure................8-28Tire rotation................8-39Types of tires................8-37Uniform tire quality grading. . . . . .10-31Wheel/tire size...............10-9Wheels and tires..........8-28, 10-9Tire pressure
Low tire pressure warning light.....2-18Tire Pressure Monitoring System (TPMS). .5-5Top tether strap child restraint.......1-35
11-6