2021 INFINITI QX80 oil filter

15,000 miles/(24,000 km)/
12 months
Standard maintenance:
• Inspect brake lines and cables
• Inspect brake pads and rotors
• Inspect differential gear oil
• Inspect propeller shaft (4WD models)
• Inspect transfer case oil (4WD models)
• Inspect drive shaft boots (4WD models)
• Replace engine oil and filter
• Replaced in-cabin microfilter
• Perform tire rotation
• Lubricate propeller shaft grease (4WD
models)
Severe maintenance:
Not Applicable. Proceed to next interval.
30,000 miles/(48,000 km)/
24 months
Standard maintenance:
• Inspect brake lines and cables
• Inspect brake pads and rotors
• Inspect fuel tank vapor vent system hoses
• Inspect fuel lines/connections
• Inspect exhaust system
• Inspect steering gear and linkage
• Inspect axle and suspension parts
• Inspect differential gear oil
• Inspect propeller shaft (4WD models)
• Inspect transfer case oil (4WD models)
• Inspect drive shaft boots (4WD models)
• Replace engine oil and filter
• Replace engine air filter (1)
• Replace brake fluid
• Replaced in-cabin microfilter
• Perform tire rotation
• Lubricate propeller shaft grease (4WD
models)
Severe maintenance:
Not Applicable. Proceed to next interval.
(1) If operating mainly in dusty conditions,
more frequent maintenance may be required.
30,000 miles/(48,000 km)/
36 months
Standard maintenance:
Not Applicable. Proceed to next interval.
Severe maintenance:
• Inspect brake pads and rotors
• Inspect steering gear and linkage
• Inspect axle and suspension parts
• Inspect propeller shaft (4WD models)
• Inspect drive shaft boots (4WD models)
• Inspect exhaust system
• Replace engine oil and filter
• Replace brake fluid

45,000 miles/(72,000 km)/
36 months
Standard maintenance:
• Inspect brake lines and cables
• Inspect brake pads and rotors
• Inspect propeller shaft (4WD models)
• Inspect differential gear oil
• Inspect transfer case oil (4WD models)
• Inspect drive shaft boots (4WD models)
• Replace engine oil and filter
• Replaced in-cabin microfilter
• Replace Intelligent Key battery
• Perform tire rotation
• Lubricate propeller shaft grease (4WD
models)
Severe maintenance:
Not Applicable. Proceed to next interval.
60,000 miles/(96,000 km)/
48 months
Standard maintenance:
• Inspect brake lines and cables
• Inspect brake pads and rotors
• Inspect engine drive belts
• Inspect fuel tank vapor vent system hoses
• Inspect fuel lines/connections
• Inspect exhaust system
• Inspect propeller shaft (4WD models)
• Inspect axle and suspension parts
• Inspect steering gear and linkage
• Inspect differential gear oil
• Inspect drive shaft boots (4WD models)
• Inspect transfer case oil (4WD models)
• Replace engine air filter (1)
• Replace brake fluid
• Replace engine oil and filter
• Replaced in-cabin microfilter
• Perform tire rotation
• Lubricate propeller shaft grease (4WD
models)Severe maintenance:
Not Applicable. Proceed to next interval.
(1) If operating mainly in dusty conditions,
more frequent maintenance may be required.

75,000 miles/(120,000 km)/
60 months
Standard maintenance:
• Inspect brake lines and cables
• Inspect brake pads and rotors
• Inspect engine drive belts
• Inspect propeller shaft (4WD models)
• Inspect differential gear oil
• Inspect drive shaft boots (4WD models)
• Inspect transfer case oil (4WD models)
• Replace engine oil and filter
• Replaced in-cabin microfilter
• Perform tire rotation
• Lubricate propeller shaft grease (4WD
models)
Severe maintenance:
Not Applicable. Proceed to next interval.
90,000 miles/(144,000 km)/
72 months
Standard maintenance:
• Inspect brake lines and cables
• Inspect brake pads and rotors
• Inspect engine drive belts
• Inspect fuel tank vapor vent system hoses
• Inspect fuel lines/connections
• Inspect exhaust system
• Inspect propeller shaft (4WD models)
• Inspect steering gear and linkage
• Inspect axle and suspension parts
• Inspect differential gear oil
• Inspect transfer case oil (4WD models)
• Inspect drive shaft boots (4WD models)
• Replace engine air filter (1)
• Replace brake fluid
• Replace engine oil and filter
• Replaced in-cabin microfilter
• Replace Intelligent Key battery
• Perform tire rotation
• Lubricate propeller shaft grease (4WD
models)Severe maintenance:
Not Applicable. Proceed to next interval.
(1) If operating mainly in dusty conditions,
more frequent maintenance may be required.

105,000 miles/(168,000 km)/
84 months
Standard maintenance:
• Inspect brake lines and cables
• Inspect brake pads and rotors
• Inspect engine drive belts
• Inspect propeller shaft (4WD models)
• Inspect differential gear oil
• Inspect transfer case oil (4WD models)
• Inspect drive shaft boots (4WD models)
• Replace engine coolant (1)
• Replace engine oil and filter
• Replaced in-cabin microfilter
• Replace spark plugs (2)
• Lubricate propeller shaft grease (4WD
models)
• Perform tire rotation
Severe maintenance:
Not Applicable. Proceed to next interval.
(1) 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.
(2) Replace spark plug when the gap exceeds
0.053 in (1.35 mm) even if within specified
replacement mileage.
120,000 miles/(192,000 km)/
96 months
Standard maintenance:
• Inspect brake lines and cables
• Inspect brake pads and rotors
• Inspect engine drive belts
• Inspect fuel tank vapor vent system hoses
• Inspect fuel lines/connections
• Inspect exhaust system
• Inspect propeller shaft (4WD models)
• Inspect steering gear and linkage
• Inspect axle and suspension parts
• Inspect differential gear oil
• Inspect transfer case oil (4WD models)
• Inspect drive shaft boots (4WD models)
• Replace engine air filter (1)
• Replace brake fluid
• Replace engine oil and filter
• Replaced in-cabin microfilter
• Perform tire rotation
•
Lubricate propeller shaft grease (4WD models)
Severe maintenance:
Not Applicable. Proceed to next interval.
(1) If operating mainly in dusty conditions,
more frequent maintenance may be required.

.Keep your engine tuned up.
. Follow the recommended scheduled
maintenance.
. Keep the tires inflated to the correct
pressure. Low tire pressure increases tire
wear and lowers fuel economy.
. Keep the wheels in correct alignment.
Improper alignment increases tire wear
and lowers fuel economy.
. Use the recommended viscosity engine
oil. (See “Engine oil and oil filter recom-
mendation” (P.10-6).)
WARNING
. Do not attempt to raise two wheels
off the ground and shift the trans-
mission to any drive or reverse posi-
tion with the engine running. Doing
so may result in drivetrain damage or
unexpected vehicle movement which
could result in serious vehicle damage
or personal injury.
. Do not attempt to test a 4WD
equipped vehicle on a 2-wheel dy-
namometer or similar equipment even
if the other two wheels are raised off
the ground. Make sure you inform
test facility personnel that your ve-
hicle is equipped with 4WD before it
is placed on a dynamometer. Using
the wrong test equipment may result
in drivetrain damage or unexpected
vehicle movement which could result
in serious vehicle damage or personal
injury.
CAUTION
.Do not drive the vehicle in the 4HI or
4LO position on dry hard surface
roads. Driving on dry, hard surfaces in 4HI or 4LO may cause unnecessary
noise, tire wear and increased fuel
consumption.
If the Four-Wheel Drive (4WD)
warning light turns on when driving
on dry hard surface roads:
— in the 4HI position, shift the 4WD shift switch to AUTO.
— in the 4LO position, stop the vehicle and shift the transmission
lever to the N (Neutral) position
with the brake pedal depressed
and shift the 4WD shift switch to
AUTO.
If the 4WD warning light is still on
after the above operation, have
your vehicle checked. It is recom-
mended you visit an INFINITI
retailer for this service.
. The transfer case may be damaged if
you continue driving with the 4WD
warning light blinking.
See “On-pavement and off-road driving
precautions” (P.5-8) for other precautions
for offroad driving.
Starting and driving5-113
INCREASING FUEL ECONOMYINFINITI ALL-MODE 4WD®(if so equipped)

8 Do-it-yourself
Maintenance precautions ............................................... 8-2
Engine compartment check locations ......................... 8-3VK56VD engine model .............................................. 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 filter .................................. 8-6
Automatic Transmission Fluid (ATF) .......................... 8-8
Power steering fluid ......................................................... 8-8
Brake fluid ........................................................................\
... 8-9 Brake fluid ..................................................................... 8-9
Window washer fluid ................................................... 8-10
Battery ........................................................................\
....... 8-11 Jump starting ............................................................. 8-12
Variable voltage control system ................................. 8-13
Drive belts ........................................................................\
. 8-13
Spark plugs ....................................................................... 8-14 Replacing spark plugs .............................................. 8-14
Air cleaner ........................................................................\
. 8-14 Windshield wiper blades .............................................. 8-15
Cleaning ..................................................................... 8-15
Replacing ................................................................... 8-16
Rear window wiper blades .......................................... 8-16
Brakes ........................................................................\
........ 8-17 Self-adjusting brakes ............................................. 8-17
Brake pad wear warning ....................................... 8-17
Brake booster ........................................................... 8-17
Fuses ........................................................................\
.......... 8-18 Engine compartment .............................................. 8-18
Passenger compartment ...................................... 8-20
Intelligent Key battery replacement ......................... 8-21
Lights ........................................................................\
......... 8-23
Headlights ................................................................ 8-24
Exterior and interior lights ................................... 8-24
Wheels and tires ............................................................. 8-27
Tire pressure ............................................................. 8-27
Tire labeling .............................................................. 8-31
Types of tires ........................................................... 8-33
Tire chains ................................................................ 8-34
Changing wheels and tires ................................... 8-35

8-2Do-it-yourself
When performing any inspection or main-
tenance work on your vehicle, always take
care to prevent serious accidental injury to
yourself or damage to the vehicle. The
following are general precautions which
should be closely observed.
WARNING
.Park the vehicle on a level surface,
apply the parking brake securely and
block the wheels to prevent the
vehicle from moving. Move the shift
lever to P (Park).
. Be sure the ignition switch is in the
OFF or LOCK position when per-
forming any parts replacement or
repairs.
. Never connect or disconnect the
battery or any transistorized compo-
nent while the ignition switch is in the
ON position.
. Never leave the engine or automatic
transmission related component har-
nesses disconnected while the igni-
tion switch is in the ON position.
. If you must work with the engine
running, keep your hands, clothing,
hair and tools away from moving
fans, belts and any other moving parts.
. It is advisable to secure or remove
any loose clothing and remove any
jewelry, such as rings, watches, etc.
before working on your vehicle.
. Always wear eye protection when-
ever you work on your vehicle.
. If you must run the engine in an
enclosed space such as a garage, be
sure there is proper ventilation for
exhaust gases to escape.
. Never get under the vehicle while it is
supported only by a jack. If it is
necessary to work under the vehicle,
support it with safety stands.
. Keep smoking materials, flame and
sparks away from fuel tank and the
battery.
. Your vehicle is equipped with an
automatic engine cooling fan. It may
come on at any time without warn-
ing, even if the ignition key is in the
OFF position and the engine is not
running. To avoid injury, always dis-
connect the negative battery cable
before working near the fan.
. On gasoline engine models, the fuel
filter or fuel lines should be serviced
because the fuel lines are under high
pressure even when the engine is off. It is recommended you visit an
INFINITI retailer for this service.
CAUTION
.
Do not work under the hood while the
engine is hot. Turn the engine off and
wait until it cools down.
. Avoid direct contact with used en-
gine oil and coolant. Improperly dis-
posed engine oil, coolant, and/or
other vehicle fluids can damage the
environment. Always conform to lo-
cal regulations for disposal of vehicle
fluid.
This “8. Do-it-yourself” section gives in-
structions regarding only those items which
are relatively easy for an owner to perform.
A genuine INFINITI Service Manual is also
available. (See “Owner’s Manual/Service
Manual order information” (P.10-35).)
You should be aware that incomplete or
improper servicing may result in operating
difficulties or excessive emissions, and could
affect your warranty coverage. If in doubt
about any servicing, it is recommended you
have it done by an INFINITI retailer.
MAINTENANCE PRECAUTIONS

8-6Do-it-yourself
JVM0728X
CHECKING ENGINE OIL LEVEL
1. Park the vehicle on a level surface andapply the parking brake.
2. Run the engine until it reaches operating temperature.
3. Turn off the engine. Wait more than 15
minutes for the oil to drain back into the
oil pan.
4. Remove the dipstick and wipe it clean. Reinsert it all the way.
5. Remove the dipstick again and check the oil level. It should be within the range
.
If the oil level is below, remove the oil
filler cap and pour recommended oil
through the opening. Do not overfill
.6. Recheck oil level with the dipstick.
It is normal to add some oil between oil
maintenance intervals or during the break-
in period, depending on the severity of
operating conditions.
CAUTION
Oil level should be checked regularly.
Operating the engine with an insuffi-
cient amount of oil can damage the
engine, and such damage is not covered
by warranty.
CHANGING ENGINE OIL AND
FILTER
Vehicle set-up
1. Park the vehicle on a level surface and
apply the parking brake.
2. Run the engine until it reaches operating temperature.
3. Turn the engine off and wait more than 15 minutes.
4. Raise and support the vehicle using a suitable floor jack and safety jack stands.
.Place the safety jack stands under thevehicle jack-up points.
.A suitable adapter should be attachedto the jack stand saddle.
5. Remove the engine undercover.
.Remove the bolts that hold the under- cover in place.
CAUTION
Make sure the correct lifting and sup-
port points are used to avoid vehicle
damage.
ENGINE OIL