2023 INFINITI QX80 engine coolant

8-4Do-it-yourself
The engine cooling system is filled at the
factory with a pre-diluted mixture of 50%
Genuine NISSAN Long Life Antifreeze/
Coolant (blue) and 50% water to provide
year-round anti-freeze and coolant protec-
tion. The antifreeze solution contains rust
and corrosion inhibitors. Additional engine
cooling system additives are not necessary.
WARNING
.Never remove the radiator or coolant
reservoir cap when the engine is hot.
Wait until the engine and radiator
cool down. Serious burns could be
caused by high pressure fluid escap-
ing from the radiator. See precau-
tions in “If your vehicle overheats”
(P.6-14).
. The radiator is equipped with a
pressure type radiator cap. To pre-
vent engine damage, use only a
genuine NISSAN radiator cap.
CAUTION
.Never use any cooling system addi-
tives such as radiator sealer. Addi-
tives may clog the cooling system and
cause damage to the engine, trans- mission and/or cooling system.
. When adding or replacing coolant, be
sure to use only Genuine NISSAN
Long Life Antifreeze/Coolant (blue)
or equivalent. Genuine NISSAN Long
Life Antifreeze/Coolant (blue) is pre-
diluted to provide antifreeze protec-
tion to −34°F (−37°C). If additional
freeze protection is needed due to
weather where you operate your
vehicle, add Genuine NISSAN Long
Life Antifreeze/Coolant (blue) con-
centrate following the directions on
the container. If an equivalent cool-
ant other than Genuine NISSAN Long
Life Antifreeze/Coolant (blue) is
used, follow the coolant manufac-
turer’s instructions to maintain mini-
mum antifreeze protection to −34°F
(−37°C). The use of other types of
coolant solutions other than Genuine
NISSAN Long Life Antifreeze/Cool-
ant (blue) or equivalent may damage
the engine cooling system.
. The life expectancy of the factory-fill
coolant is 105,000 miles (168,000
km) or 7 years. Mixing any other type
of coolant other than Genuine
NISSAN Long Life Antifreeze/Cool-
ant (blue) (or equivalent coolant),
including Genuine NISSAN Long Life
Antifreeze/Coolant (green), or the use of non-distilled water will reduce
the life expectancy of the factory-fill
coolant. Refer to the "9. Mainte-
nance and schedules" section for
more details.
ENGINE COOLING SYSTEM

JVM0744X
CHECKING ENGINE COOLANT
LEVEL
Check the coolant levelin the reservoir
when the engine is cold. If the coolant level
is below MIN
, open the reservoir tank cap
and add coolant up to the MAXlevel. If the
reservoir tank is empty, check the coolant
level in the radiator when the engine is cold.
If there is insufficient coolant in the radiator,
fill the radiator with coolant up to the filler
opening and also add it to the reservoir tank
up to the MAX level
.
Tighten the cap securely after adding engine
coolant.
If the cooling system requires coolant fre- quently, have it checked. It is recommended
you visit an INFINITI retailer for this
service.
CHANGING ENGINE COOLANT
It is recommended that major cooling system
repairs be performed by an INFINITI retailer.
The service procedures can be found in the
appropriate INFINITI Service Manual.
Improper servicing can result in reduced
heater performance and engine overheat-
ing.
WARNING
.
To avoid the danger of being scalded,
never change the coolant when the
engine is hot.
. Never remove the radiator cap or
coolant reservoir cap when the en-
gine is hot. Serious burns could be
caused by high pressure fluid escap-
ing from the radiator.
. Avoid direct skin contact with used
coolant. If skin contact is made, wash
thoroughly with soap or hand cleaner
as soon as possible.
. Keep coolant out of reach of children
and pets. Engine coolant must be disposed of prop-
erly. Check your local regulations.
Do-it-yourself8-5

8-10Do-it-yourself
mended types of brake fluid.)
NOTE:
When the ignition switch is placed in the ON
position after adding brake fluid up to the
MAX line
in the reservoir, the brake fluid
decreases below the MAX line. This is
normal.
If fluid must be added frequently, the system
should be checked. It is recommended you
visit an INFINITI retailer for this service.
SDI2517
WARNING
Antifreeze is poisonous and should be
stored carefully in marked containers
out of the reach of children.
Fill the window washer fluid reservoir per-
iodically. Add window washer fluid when the
low window washer fluid warning illumi-
nates.
To fill the window washer fluid reservoir, lift
the cap off the reservoir tank and pour the
window washer fluid into the tank opening.
Add a washer solvent to the washer for better cleaning. In the winter season, add a
windshield washer antifreeze. Follow the
manufacturer’s instructions for the mixture
ratio.
Refill the reservoir more frequently when
driving conditions require an increased
amount of window washer fluid.
Recommended fluid is Genuine NISSAN
Windshield Washer Concentrate Cleaner &
Antifreeze or equivalent.
CAUTION
.
Do not substitute engine anti-freeze
coolant for window washer solution.
This may result in damage to the
paint.
. Do not fill the window washer re-
servoir tank with washer fluid con-
centrates at full strength. Some
methyl alcohol based washer fluid
concentrates may permanently stain
the grille if spilled while filling the
window washer reservoir tank.
. Pre-mix washer fluid concentrates
with water to the manufacturer’s
recommended levels before pouring
the fluid into the window washer
reservoir tank. Do not use the win-
dow washer reservoir tank to mix the
WINDOW WASHER FLUID

9-4Maintenance and schedules
equipped) hold securely in all latched posi-
tions.
Steering wheel:Check for changes in the
steering conditions, such as excessive free
play, hard steering or strange noises.
Warning lights and chimes: Make sure that
all warning lights and chimes are operating
properly.
Windshield defroster: Check that the air
comes out of the defroster outlets properly
and in sufficient quantity when operating
the heater or air conditioner.
Windshield wiper and washer*: Check that
the wipers and washer operate properly and
that the wipers do not streak.
Under the hood and vehicle
The maintenance items listed here should be
checked periodically (for example, each time
you check the engine oil or refuel).
Battery*: Check the fluid level in each cell. It
should be between the MAX and MIN lines.
Vehicles operated in high temperatures or
under severe condition require frequent
checks of the battery fluid level.
NOTE:
Care should be taken to avoid situations
that can lead to potential battery discharge
and potential no-start conditions such as: 1.
Installation or extended use of electro-
nic accessories that consume battery
power when the engine is not running
(Phone chargers, GPS, DVD players,
etc.)
2. Vehicle is not driven regularly and/or
only driven short distances.
In these cases, the battery may need to be
charged to maintain battery health.
Brake fluid level*: Make sure that the brake
fluid level is between the MAX and MIN lines
on the reservoir.
Engine coolant level*: Check the coolant
level when the engine is cold.
Engine drive belt*: Make sure that no belt is
frayed, worn, cracked or oily.
Engine oil level*: Check the level after
parking the vehicle on a level spot and
turning off the engine. Wait more than 15
minutes for the oil to drain back into the oil
pan.
Exhaust system: Make sure there are no
loose supports, cracks or holes. If the sound
of the exhaust seems unusual or there is a
smell of exhaust fumes, immediately have
the exhaust system inspected. It is recom-
mended you visit an INFINITI retailer for this
service. (See “Precautions when starting and
driving” (P.5-4) for exhaust gas (carbon
monoxide).) Fluid leaks:
Check under the vehicle for fuel,
oil, water or other fluid leaks after the
vehicle has been parked for a while. Water
dripping from the air conditioner after use is
normal. If you should notice any leaks or if
gasoline fumes are evident, check for the
cause and have it corrected immediately.
Power steering fluid level* and lines: Check
the level when the fluid is cold, with the
engine off. Check the lines for proper
attachment, leaks, cracks, etc.
Radiator and hoses: Check the front of the
radiator and clean off any dirt, insects,
leaves, etc., that may have accumulated.
Make sure the hoses have no cracks, defor-
mation, rot or loose connections.
Underbody: The underbody is frequently
exposed to corrosive substances such as
those used on icy roads or to control dust. It
is very important to remove these sub-
stances, otherwise rust will form on the
floor pan, frame, fuel lines and around the
exhaust system. At the end of winter, the
underbody should be thoroughly flushed
with plain water, being careful to clean
those areas where mud and dirt may accu-
mulate. For additional information, see
“Cleaning exterior” (P.7-2).
Windshield washer fluid*: Check that there
is adequate fluid in the reservoir.

The following descriptions are provided to
give you a better understanding of the
scheduled maintenance items that should
be regularly checked or replaced. The main-
tenance schedule indicates at which mile-
age/time intervals each item requires
service.
In addition to scheduled maintenance, your
vehicle requires that some items be checked
during normal day-to-day operation. Refer
to “General maintenance” (P.9-2).
Items marked with “*” are recommended by
INFINITI for reliable vehicle operation. You
are not required to perform maintenance on
these items in order to maintain the warran-
ties which come with your vehicle. Other
maintenance items and intervals are re-
quired.
When applicable, additional information can
be found in the “8. Do-it yourself” section of
this manual.
NOTE:
INFINITI does not advocate the use of non-
OEM approved aftermarket flushing sys-
tems and strongly advises against perform-
ing these services on an INFINITI product.
Many of the aftermarket flushing systems
use non-OEM approved chemicals or sol-
vents, the use of which has not been
validated by INFINITI.
For recommended fuel, lubricants, fluids,grease, and refrigerant, refer to “Capacities
and recommended fluids/lubricants” (P.10-
2) of this manual.
EMISSION CONTROL SYSTEM
MAINTENANCE
Drive belt*:
Check engine drive belt for wear, fraying or
cracking and for proper tension. Replace any
damaged drive belt.
Engine air filter:
Replace at specified intervals. When driving
for prolonged periods in dusty conditions,
check/replace the filter more frequently.
Engine coolant*
Replace coolant at the specified interval.
When adding or replacing coolant, be sure to
use only Genuine NISSAN Long Life Anti-
freeze/Coolant (blue) or equivalent with the
proper mixture. (Refer to “Engine cooling
system” (P.8-4) to determine the proper
mixture for your area.)
NOTE:
Mixing any other type of coolant or the use
of non-distilled water may reduce the
recommended service interval of the cool-
ant.
Engine oil and oil filter:
Replace engine oil and oil filter at the
specified intervals. For recommended oil
grade and viscosity refer to “Capacities and
recommended fluids/lubricants” (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 lines*:
Check the fuel hoses, piping and connections
for leaks, looseness, or deterioration. Tight-
en connections or replace parts as necessary.
Spark plugs:
Replace at specified intervals. Install new
plugs of the type as originally equipped.
CHASSIS AND BODY MAINTE-
NANCE
Brake lines and cables:
Visually inspect for proper installation.
Check for chafing, cracks, deterioration,
and signs of leaking. Replace any deterio-
rated or damaged parts immediately.
Maintenance and schedules9-5
EXPLANATION OF SCHEDULED
MAINTENANCE ITEMS

9-18Maintenance and schedules
105,000 Miles/84 Months/
168,000 Km
Perform at number of miles, kilometers or months,
whichever comes first.
Standard maintenance:
Inspections:
.Brake lines and cables.Brake pads and rotors.Engine drive belts.Propeller shaft (4WD models).Differential gear oil.Transfer case oil (4WD models).Drive shaft boots (4WD models)
Essentials:
.Replace engine coolant (1).Replace engine oil and filter.Replace in-cabin microfilter.Replace spark plugs (2) (3).Lubricate propeller shaft grease (4WD models).Tire rotation
Severe use maintenance:
Not Applicable. Proceed to next interval. (1) First replacement interval is 105,000 miles
(168,000 km) or 84 months. After first replace-
ment, replace every 75,000 miles (120,000 km)
or 60 months.
Engine Coolant service note: "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 ex-
pectancy of the factory fill coolant."
(2) Performed based on the number of miles only.
(3) Replace spark plug when the plug gap exceeds
0.053 in (1.35 mm) even if within specified
replacement mileage.
105,000 Miles/126 Months/
168,000 Km
Perform at number of miles, kilometers or months,
whichever comes first.
Standard maintenance:
Not Applicable. Proceed to next interval.
Severe use maintenance:
Inspections:
.Brake pads and rotors.Steering gear and linkage.Axle and suspension parts.Propeller shaft (4WD models).Drive shaft boots (4WD models).Exhaust system
Essentials:
.Replace engine oil and filter

ADDITIONAL INFORMATION
NOTE FOR ENGINE COOLANT *:
(1) First replacement interval is 105,000 miles
(168,000 km) or 84 months. After first repla-
cement, replace every 75,000 miles (120,000
km) or 60 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.
NOTE FOR SPARK PLUGS:
(1) Replace every 105,000 miles (168,000 km)
(2) Replace spark plug when the plug gap
exceeds 0.053 in (1.35 mm) even if within
specified periodic replacement mileage.
Maintenance and schedules9-21

10-2Technical and consumer information
The following are approximate capacities. The actual refill capacities may be a little different. When refilling, follow the procedure
instructed in the “8. Do-it-yourself” section to determine the proper refill capacity.
Fluid typeCapacity (approximate)
Recommended Fluids/Lubricants
Metric
Measure US
Measure Imperial
Measure
Fuel 98.4 L26 gal21-5/8 gal

See “Fuel information” (P.10-4).
Engine oil*1 With oil filter change 6.5 L6-7/8 qt 5-3/4 qt

Genuine “NISSAN Motor Oil 0W-20 SP” (or equivalent) is recom-
mended.


If the above motor oil (or engine oil) is not available, a synthetic 0W-
20 GF-6 SP motor oil (or engine oil) may be used. Damage caused by
the use of motor oil (or engine oil) other than as recommended is not
covered under INFINITI’s New Vehicle Limited Warranty. For
additional information, see “Engine oil and oil filter recommendation”
(P.10-6).
Drain and refill
*1: For additional information,
see “Changing engine oil and
filter” (P.8-6).
Without oil filter change 6.2 L6-1/2 qt 5-1/2 qt
Engine coolant
With reservoir 15.1 L
16 qt13-1/4 qt


Pre-diluted Genuine NISSAN Long Life Antifreeze/Coolant (blue) or
equivalent
Automatic transmission fluid (ATF) —— —

Genuine NISSAN Matic S ATF or equivalent


INFINITI recommends using Genuine NISSAN Matic S ATF (or
equivalent) ONLY in INFINITI automatic transmissions. Do not mix
with other fluids. Using fluids that are not equivalent to Genuine
NISSAN Matic S ATF may damage the automatic transmission.
Damage caused by the use of fluids other than as recommended is not
covered under the INFINITI’s New Vehicle Limited Warranty.
Transfer fluid —— —

Genuine NISSAN Transfer Fluid for ATX90A transfer or equivalent


Using transfer fluid other than Genuine NISSAN Transfer Fluid (or
equivalent) may damage the transfer, which is not covered by the
INFINITI New Vehicle Limited Warranty.
Front differential gear oil —— —

Genuine NISSAN Differential Oil Hypoid Super GL-5 80W-90 or
equivalent conventional (non-synthetic) oil
Rear differential gear oil —— —

Genuine NISSAN Differential Oil Hypoid Super-S GL-5 synthetic
75W-90 or equivalent
Power steering fluid (PSF) Refill to the proper oil level according to the instructions
in the “8. Do-it-yourself” section.


Genuine NISSAN PSF or equivalent


DEXRON
TMVI type ATF may also be used.
Brake fluid

Genuine NISSAN Super Heavy Duty Brake Fluid*2 or equivalent DOT
3
*2: Available in mainland U.S.A. through an INFINITI retailer.
Suspension fluid —— —

Genuine NISSAN Hydraulic Suspension Fluid or equivalent


Using Hydraulic Suspension fluid other than Genuine NISSAN
Hydraulic Suspension Fluid (or equivalent) will damage the Hydraulic
Suspension, which is not covered by the INFINITI New Vehicle Limited
Warranty. See an INFINITI retailer for recommended hydraulic
suspension fluid.
Multi-purpose grease —— —

NLGI No. 2 (Lithium soap base)
CAPACITIES AND RECOMMENDED
FLUIDS/LUBRICANTS