2023 INFINITI QX80 engine oil

2-24Instruments and controls
doors can be unlocked if the door handle
request switch is pushed again within 1
minute. When this item is turned to off,
all the doors will be unlocked when the
door handle request switch is pushed
once. Use the OK
button to activate or
deactivate this function.
Driving Position:
. Exit Seat Slide
This allows user to turn the entry/exit
function ON or OFF. Use the OK
button to turn this function ON or OFF.
(See “Memory seat” (P.3-39).)
. Exit Steering Up
This allows user to turn the entry/exit
function ON or OFF. Use the OK
button to turn this function ON or OFF.
(See “Memory seat” (P.3-39).)
Rear Door Alert:
The “Rear Door Alert” feature allows user to
customize the Rear Door Alert options. Use
the OK
button to change the mode.
. Horn & Alert
When selected, the alert is displayed and
the horn sounds.
. Alert Only
When selected, only the alert is dis-
played.
. OFF When selected, no alert or horn will be
active.
(See “Rear door alert” (P.2-59).)
Maintenance
The maintenance mode allows user to set
alerts for the reminding of maintenance
intervals. To change an item:
Select “Maintenance” using the
buttonsand press the OKbutton.
. Oil and Filter
. Tire
. Other
Oil and Filter:
This indicator appears when user set dis-
tance comes for changing the engine oil and
filter. You can set or reset the distance for
checking or replacing these items. For
scheduled maintenance items and intervals,
refer to the “9. Maintenance and schedules”
section.
Tire:
This indicator appears when the user set
distance comes for replacing tires. You can
set or reset the distance for replacing tires.
WARNING
The tire replacement indicator is not a
substitute for regular tire checks, includ-
ing tire pressure checks. (See “Changing
wheels and tires” (P.8-35).) Many fac-
tors including tire inflation, alignment,
driving habits and road conditions affect
tire wear and when tires should be
replaced. Setting the tire replacement
indicator for a certain driving distance
does not mean your tires will last that
long. Use the tire replacement indicator
as a guide only and always perform
regular tire checks. Failure to perform
regular tire checks, including tire pres-
sure checks could result in tire failure.
Serious vehicle damage could occur and
may lead to a collision, which could result
in serious personal injury or death.
Other:
This indicator appears when the user set
distance comes for checking or replacing
maintenance items other than the engine oil,
oil filter and tires. Other maintenance items
can include such things as air filter or tire
rotation. You can set or reset the distance
for checking or replacing the items.

2-36Instruments and controls
than 1 second.
The display is updated every 30 seconds. At
about the first 1/3 mile (500 m) after a
reset, the display shows “——”.
8. Intelligent Cruise Control (ICC)
system (if so equipped)
This mode shows the operating condition for
the Intelligent Cruise Control (ICC) system.
(See “Intelligent Cruise Control (ICC)” (P.5-
64).)
NOTE:
If the ICC system is in a standby state, this
screen is automatically displayed.
9. Driving aids (if so equipped)
The driving aids mode shows the operating
condition for the following systems, if the
vehicle is equipped with them.
.Forward Emergency Braking (FEB) with
Pedestrian Detection system
. Predictive Forward Collision Warning
(PFCW)
. Lane Departure Warning (LDW)
. Lane Departure Prevention (LDP)
. Blind Spot Warning (BSW)
. Blind Spot Intervention
®(BSI)
. Distance Control Assist (DCA)
For more details, see “Forward Emergency
Braking (FEB) with Pedestrian Detection system” (P.5-95), “Predictive Forward Colli-
sion Warning (PFCW)” (P.5-104), “Lane
Departure Warning (LDW)” (P.5-22), “Lane
Departure Prevention (LDP)” (P.5-27),
“Blind Spot Warning (BSW)” (P.5-34), “Blind
Spot Intervention
®(BSI)” (P.5-42), or “Dis-
tance Control Assist (DCA)” (P.5-85).
10. Tire pressures
The tire pressure mode shows the pressure
of all four tires while the vehicle is driven.
When the “Tire Pressure Low Add Air”
warning appears, the display can be
switched to the tire pressure mode by
pushing the left or right side of the
button.
The tire pressure unit can be changed using
the “TPMS Setting” menu displayed in the
vehicle information display. (See “TPMS
Setting” (P.2-22).)
NOTE:
After the ignition switch is placed in the ON
position, it may take a period of time for the
tire pressure to be displayed while the
vehicle is driven. Depending on the radio
wave circumstance, tire pressure may not
correctly be displayed.
WAC0225X
11. Auxiliary gauges
The auxiliary gauges consist of the battery
voltage gauge and the engine oil pressure
gauge.
The engine oil pressure gauge indicates
current engine oil pressure. (See “En-
gine oil pressure gauge” (P.2-9).)
The battery voltage gauge indicates
current battery voltage. (See “Volt-
meter” (P.2-10).)

the brake pedal within 10 seconds after
the chime sounds. The engine will start.
After step 3 is performed, when the ignition
switch is pushed without depressing the
brake pedal, the ignition switch position will
change to ACC.
NOTE:
. When the ignition switch is pushed to
the ACC or ON position or the engine is
started by the above procedures, the
“Key Battery Low” message appears on
the vehicle information display even if
the Intelligent Key is inside the vehicle.
This is not a malfunction. To turn off the
Intelligent Key battery discharge indi-
cator, touch the ignition switch with the
Intelligent Key again.
. If the “Key Battery Low” message
appears, replace the battery as soon as
possible. (See “Battery” (P.8-11).) .
Make sure the area around the vehicle is
clear.
. Check fluid levels such as engine oil,
coolant, brake fluid and window washer
fluid as frequently as possible, or at least
whenever you refuel.
. Check that all windows and lights are
clean.
. Visually inspect tires for their appearance
and condition. Also check tires for proper
inflation.
. Lock all doors.
. Position seat and adjust head restraints/
headrests.
. Adjust inside and outside mirrors.
. Fasten seat belts and ask all passengers
to do likewise.
. Check the operation of warning lights
when the ignition switch is pushed to the
ON position. (See “Warning lights, in-
dicator lights and audible reminders”
(P.2-11).)1. Apply the parking brake.
2. Move the shift lever to the P (Park) or N
(Neutral) position. (P is recommended.)
The starter is designed not to operate
unless the shift lever is in either of the
above positions.
3. Push the ignition switch to the ON position. Firmly depress the brake pedal
and push the ignition switch to start the
engine.
To start the engine immediately, push
and release the ignition switch while
depressing the brake pedal with the
ignition switch in any position.
.If the engine is very hard to start inextremely cold weather or when re-
starting, depress the accelerator ped-
al a little (approximately 1/3 to the
floor) and while holding, crank the
engine. Release the accelerator pedal
when the engine starts.
.If the engine is very hard to start
because it is flooded, depress the
accelerator pedal all the way to the
floor and hold it. Push the ignition
switch to the ON position to start
cranking the engine. After 5 or 6
seconds, stop cranking by pushing
the ignition switch to OFF. After
cranking the engine, release the accel-
erator pedal. Crank the engine with
Starting and driving5-15
BEFORE STARTING THE ENGINE STARTING THE ENGINE

ENGINE PROTECTION MODE
The engine has an engine protection mode to
reduce the chance of damage if the coolant
temperature becomes too high (for example,
when climbing steep grades in high tem-
perature with heavy loads, such as when
towing a trailer).
When the engine temperature reaches a
certain level:
.The engine coolant temperature gauge
will move toward the H position.
. Engine power may be reduced.
. The air conditioning cooling function may
be automatically turned OFF for a short
time (the blower will continue to oper-
ate).
Engine power and, under some conditions,
vehicle speed will decrease. Vehicle speed
can be controlled with the accelerator pedal,
but the vehicle may not accelerate at the
desired speed. The transmission will down-
shift or upshift as it reaches prescribed shift
points. You can also shift manually.
As driving conditions change and engine
coolant temperature is reduced, vehicle
speed can be increased using the accelerator
pedal, and air conditioning cooling function
will automatically be turned back ON. If:
1. The engine coolant temperature is not
reduced.
2. The air conditioning cooling function does not turn back ON.
3. The engine oil pressure warning light
illuminates or engine coolant tempera-
ture gauge does not return to the normal
range from the H position, this may
indicate a malfunction. Move the vehicle
off the road to a safe area and allow the
engine to cool. If after checking the oil
and coolant, the
remains on or
engine coolant temperature does not
return to the normal range, do not
continue to drive. It is recommended
you contact an INFINITI retailer.
The Malfunction Indicator Light (MIL)
may also come ON. You do not need to have
your vehicle towed, unless it remains on, but
have it inspected soon. It is recommended
you visit an INFINITI retailer for this service.
See “Warning lights, indicator lights and
audible reminders” (P.2-11).
WARNING
Overheating can result in reduced engine
power and vehicle speed. The reduced
speed may be lower than other traffic, which could increase the chance of a
collision. Be especially careful when
driving. If the vehicle cannot maintain a
safe driving speed, pull to the side of the
road in a safe area. Allow the engine to
cool and return to normal operation. See
“If your vehicle overheats” (P.6-14).
CAUTION
Running the engine with the engine oil
pressure warning light on could cause
serious damage to the engine almost
immediately. Such damage is not cov-
ered by warranty. Turn off the engine as
soon as it is safe to do so.
Starting and driving5-17
DRIVING THE VEHICLE

Follow these easy-to-use Fuel Efficient
Driving Tips to help you achieve the most
fuel economy from your vehicle.
1. Use smooth accelerator and brake pedalapplication.
.Avoid rapid starts and stops..Use smooth, gentle accelerator andbrake application whenever possible.
.Maintain constant speed while com-muting and coast whenever possible.
2. Maintain constant speed.
.Look ahead to try and anticipate and minimize stops.
.Synchronizing your speed with traffic
lights allows you to reduce your
number of stops.
.Maintaining a steady speed can mini-mize red light stops and improve fuel
efficiency.
3. Use air conditioning (A/C) at higher vehicle speeds.
.Below 40 MPH (64 km/h), it is moreefficient to open windows to cool the
vehicle due to reduced engine load.
.Above 40 MPH (64 km/h), it is moreefficient to use A/C to cool the
vehicle due to increased aerodynamic
drag.
.Recirculating the cool air in the cabinwhen the A/C is on reduces cooling
load. 4. Drive at economical speeds and dis-
tances.
.Observing the speed limit and notexceeding 60 MPH (97 km/h) (where
legally allowed) can improve fuel
efficiency due to reduced aerody-
namic drag.
.Maintaining a safe following distance
behind other vehicles reduces unne-
cessary braking.
.Safely monitoring traffic to anticipatechanges in speed permits reduced
braking and smooth acceleration
changes.
.Select a gear range suitable to roadconditions.
5. Use cruise control.
.Using cruise control during highway driving helps maintain a steady speed.
.Cruise control is particularly effectivein providing fuel savings when driving
on flat terrains.
6. Plan for the shortest route.
.Utilize a map or navigation system to determine the best route to save time.
7. Avoid idling.
.Shutting off your engine when safe for stops exceeding 30-60 seconds
saves fuel and reduces emissions. 8. Buy an automated pass for toll roads.
.Automated passes permit drivers to
use special lanes to maintain cruising
speed through the toll and avoid
stopping and starting.
9. Winter warm up.
.Limit idling time to minimize impact to fuel economy.
.Vehicles typically need no more than30 seconds of idling at start-up to
effectively circulate the engine oil
before driving.
.Your vehicle will reach its ideal oper-ating temperature more quickly while
driving versus idling.
10. Keeping your vehicle cool.
.Park your vehicle in a covered parking area or in the shade whenever possi-
ble.
.When entering a hot vehicle, openingthe windows will help to reduce the
inside temperature faster, resulting in
reduced demand on your A/C system.
Starting and driving5-115
FUEL EFFICIENT DRIVING TIPS

5-116Starting and driving
.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.
INCREASING FUEL ECONOMYINFINITI ALL-MODE 4WD®(if so equipped)

The 4WD shift switch is used to select the
4WD mode depending on the driving condi-
tions. There are 3 types of drive modes
available, AUTO, 4HI and 4LO.
The 4WD shift switch electronically controls
the transfer case operation. Rotate the
switch to move between each mode, AUTO,
4H and 4L.
You must depress the 4WD shift switch to
select 4L, and the vehicle MUST be sta-
tionary and the shift lever in the N (Neutral)
position when changing into or out of 4L.
WARNING
.When parking, apply the parking
brake before stopping the engine
and make sure that the 4WD shift
indicator is on and the ATP warning
light turns off. Otherwise, the vehicle
could unexpectedly move even if the
automatic transmission is in the P
(Park) position.
. The 4LO and 4HI indicators must
stop blinking and the 4LO or 4HI
indicator must remain illuminated or
turn off before shifting the transmis-
sion into gear. If the shift lever is
shifted from the N (Neutral) position
to any other gear while the 4LO and
4HI indicators are blinking alter- nately, the vehicle may move unex-
pectedly.
CAUTION
.
Never shift the 4WD shift switch
between 4L and 4H while driving.
. The 4HI position provides greater
traction. Avoid excessive speed, as it
will cause increased fuel consumption
and higher oil temperatures, and
could damage drivetrain component.
Speeds over 62 MPH (100 km/h) in
4HI is not recommended.
. The 4LO position provides maximum
traction. Avoid raising vehicle speed
excessively, as the maximum speed is
approximately 31 MPH (50 km/h).
. When driving straight, shift the 4WD
shift switch to the AUTO or 4H
position. Do not move the 4WD shift
switch when making a turn or rever-
sing.
. Do not shift the 4WD shift switch
(between AUTO and 4H) while driv-
ing on steep downhill grades. Use the
engine brake and low automatic
transmission gears for engine brak-
ing. .
Do not operate the 4WD shift switch
(between AUTO and 4H) with the
rear wheels spinning.
. Do not drive on dry hard surface
roads in the 4HI or 4LO position.
Driving on dry hard surfaces in 4HI or
4LO may cause unnecessary noise
and tire wear. INFINITI recommends
driving in the AUTO position under
these conditions.
. The 4WD transfer case may not be
shifted between 4HI and 4LO at low
ambient temperatures and the 4LO
and 4HI indicators may blink even
when the 4WD shift switch is shifted.
After driving for a while you can
change the 4WD shift switch be-
tween 4H and 4L.
When driving on rough roads,
. Drive carefully according to the road
surface conditions.
When the vehicle is stuck,
. Place stones or wooden blocks under the
tires to free the vehicle.
. Set the 4WD shift switch to 4H or 4L.
. If it is difficult to free the vehicle, repeat
forward and backward movement to
increase the movement.
Starting and driving5-119

.Engine idling speed is high while
warming up the engine. Be especially
careful when starting or driving on
slippery surfaces with the 4WD shift
switch in AUTO.
WAF0362X
4WD shift indicator
4WD SHIFT INDICATOR
The 4WD shift indicator is displayed in the
vehicle information display.
The indicator should turn off within a few
seconds after placing the ignition switch in
the ON position.
While the engine is running, the 4WD shift
indicator will illuminate the position selected
by the 4WD shift switch. (See the 4WD shift
procedure list shown in the “INFINITI all-
mode 4WD
®system” (P.5-117).) .
The 4WD shift indicator may blink while
shifting from one drive mode to the
other. When the shifting is completed,
the 4WD shift indicator will come on. If
the indicator does not come on immedi-
ately, make sure the area around the
vehicle is safe, and drive the vehicle
straight, accelerate or decelerate or
move the vehicle in reverse, then shift
the 4WD shift switch.
. If the 4WD warning light comes on, the
4WD shift indicator turns off.
4WD WARNING LIGHT
Warning light Comes on or
blinks when:
Illuminates There is a mal-
function in the 4WD system
Blinks rapidly The transfer case
oil temperature is
abnormally high
Blinks slowly The difference in
wheel rotation is
large
The 4WD warning light is located in the
meter.
The 4WD warning light comes on when the
ignition switch is placed in the ON position.
It turns off soon after the engine is started.
Starting and driving5-121