2020 NISSAN 370Z cooling

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 precau-
tions which should be closely observed.
WARNING
.Park the vehicle on a level sur-
face, apply the parking brake
securely and block the wheels to
prevent the vehicle from moving.
For manual transmission models,
move the shift lever to N (Neutral).
For automatic transmission mod-
els, move the shift lever to P
(Park).
. Be sure the ignition switch is in
the OFF or LOCK position when
performing any parts replace-
ment or repairs.
. Never connect or disconnect the
battery or any transistorized
component while the ignition
switch is in the ON position.
. Never leave the engine or auto-
matic transmission related com-
ponent harnesses disconnected
while the ignition switch is in the
ON position. .
If you must work with the engine
running, keep your hands, cloth-
ing, hair and tools away from
moving fans, belts and any other
moving parts.
. It is advisable to secure or re-
move any loose clothing and
remove any jewelry, such as
rings, watches, etc. before work-
ing on your vehicle.
. Always wear eye protection
whenever you work on your ve-
hicle.
. 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
warning, even if the ignition key is
in the OFF position and the en-
gine is not running. To avoid injury, always disconnect the ne-
gative battery cable before work-
ing near the fan.
. Because the fuel lines are under
high pressure even when the
engine is off, it is recommended
you visit a NISSAN dealer for
service of the fuel filter or fuel
lines.
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
engine oil and coolant. Impro-
perly disposed engine oil, coolant,
and/or other vehicle fluids can
damage the environment. Always
conform to local 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 NISSAN Service Manual is also
available. (See “Owner’s Manual/Service
Manual order information” (P.10-26).)
MAINTENANCE PRECAUTIONS

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 pro-
tection. 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 en-
gine and radiator cool down.
Serious burns could be caused
by high pressure fluid escaping
from the radiator. See precau-
tions in “If your vehicle overheats”
(P.6-17) of this manual.
. The radiator is equipped with a
pressure type radiator cap. To
prevent engine damage, use only
a genuine NISSAN radiator cap.
CAUTION
.Never use any cooling system
additives such as radiator sealer.
Additives may clog the cooling
system and cause damage to
the engine, transmission and/or
cooling system.
. When adding or replacing cool-
ant, be sure to use only Genuine
NISSAN Long Life Antifreeze/
Coolant (blue) or equivalent. Gen-
uine NISSAN Long Life Antifreeze/
Coolant (blue) is pre-diluted to
provide antifreeze protection 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)
concentrate following the direc-
tions on the container. If an
equivalent coolant other than
Genuine NISSAN Long Life Anti-
freeze/Coolant (blue) is used, fol-
low the coolant manufacturer’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/Coolant (blue) or
equivalent may damage the en-
gine cooling system.
. The life expectancy of the fac-
tory-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/Coolant (blue), includ-
ing 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. Maintenance and schedules”
section of this manual for more
details.
ENGINE COOLING SYSTEM

JVM0087X
CHECKING ENGINE COOLANT LEVEL
Check the coolant levelin the reservoir
when the engine is running and after it
reaches normal operating temperature.
If the coolant level is below the MIN level
,
add coolant up to the MAX level. If the
reservoir 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 radiator filler cap above the radia-
tor upper hose opening and also add it to
the reservoir up to the MAX level
. Put on
the filler cap above the radiator upper
hose and with the reservoir cap open,
start the engine. Run the engine until it
reaches normal operating temperature. Add coolant up to the MAX level
. Tighten
the cap securely after adding engine
coolant.
If the cooling system requires coolant
frequently, have it checked. It is recom-
mended you visit a NISSAN dealer for
this service.
CHANGING ENGINE COOLANT
It is recommended that major cooling
system repairs be performed by a NISSAN
dealer. The service procedures can be
found in the appropriate NISSAN Service
Manual.
Improper servicing can result in re-
duced heater performance and engine
overheating.
WARNING
. To avoid the danger of being
scalded, never change the cool-
ant when the engine is hot.
. Never remove the radiator cap
when the engine is hot. Serious
burns could be caused by high
pressure fluid escaping 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 pos-
sible.
. Keep coolant out of reach of
children and pets.
Engine coolant must be disposed of
properly. Check your local regulations.
Do-it-yourself8-5

the underbody should be thoroughly
flushed with plain water, being careful to
clean those areas where mud and dirt
may accumulate. For additional informa-
tion, 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 maintenance schedule indicates at
which mileage/time intervals each item
requires service.
In addition to scheduled maintenance,
your vehicle requires that some items be
checked during normal day-to-day op-
eration. Refer to “General maintenance”
(P.9-2).
Items marked with “*” are recommended
by NISSAN for reliable vehicle operation.
You are not required to perform main-
tenance on these items in order to
maintain the warranties which come with
your vehicle. Other maintenance items
and intervals are required.
When applicable, additional information
can be found in the “8. Do-it yourself”
section of this manual.
NOTE:
NISSAN does not advocate the use of
non-OEM approved aftermarket flush-
ing systems and strongly advises
against performing these services on a
NISSAN product. Many of the aftermar-
ket flushing systems use non-OEM ap-
proved chemicals or solvents, the use of
which has not been validated by
NISSAN.For recommended fuel, lubricants,
fluids, grease, and refrigerant, refer to
“Capacities and recommended fluids/
lubricants” (P.10-2) of this manual.
EMISSION CONTROL SYSTEM MAIN-
TENANCE
Drive belts*:
Check engine drive belts for wear, fraying
or cracking and for proper tension. Re-
place any damaged drive belts.
Engine air filter:
Replace at specified intervals. When driv-
ing for prolonged periods in dusty condi-
tions, 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 Antifreeze/Coolant (blue) or equiva-
lent with the proper mixture. (Refer to
“Engine cooling system” (P.8-4) to deter-
mine 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 coolant.
Maintenance and schedules9-5
EXPLANATION OF SCHEDULED
MAINTENANCE ITEMS

11-2
Clock ........................................................................\
... 2-9, 2-28
Clutch fluid........................................................................\
.... 8-9
Cockpit ........................................................................\
............. 2-3
Cold weather driving ................................................ 5-33
Compact Disc (CD) player (See
audio system) ................................................................. 4-60
Compact spare tire.................................................... 8-37
Console box ..................................................................... 2-46
CoolantCapacities and
recommended fluids/lubricants............... 10-2
Changing engine coolant ................................. 8-5
Checking engine coolant level...................... 8-5
Corrosion protection .................................................... 7-8
Cover, Cargo cover..................................................... 2-47
Cruise control ................................................................. 5-22
Cup holders...................................................................... 2-44
D
Dampers, Performance dampers.................... 5-32
Daytime running light system........................... 2-38
Defroster switch, Rear window
defroster switch ........................................................... 2-34
Dimensions .................................................................... 10-11
Drive belts...................................................................\
....... 8-14
Driving Cold weather driving ......................................... 5-33
Driving with
automatic transmission .................................. 5-12
Driving with manual transmission.......... 5-17
Precautions when starting
and driving.................................................................... 5-2
DVD player operation............................................... 4-61
E
Economy, Fuel................................................................ 5-25
Elapsed time.................................................................... 2-26
Emergency tire puncture repair kit .................. 6-9
Emission control information label............ 10-13
Emission control system warranty ............ 10-24
Engine Before starting the engine............................ 5-11
Break-in schedule ................................................ 5-24
Capacities and
recommended fluids/lubricants............... 10-2
Changing engine coolant ................................. 8-5
Changing engine oil and filter ...................... 8-6
Checking engine coolant level...................... 8-5
Checking engine oil level................................... 8-6
Coolant temperature gauge .......................... 2-7
Emergency engine shut off.......................... 5-10
Engine block heater ........................................... 5-34
Engine compartment
check locations ......................................................... 8-3
Engine cooling system ........................................ 8-4
Engine oil.....................................................................\
... 8-6
Engine oil and oil
filter recommendation ..................................... 10-7
Engine oil replacement indicator ............ 2-24
Engine oil temperature gauge...................... 2-8
Engine oil viscosity .............................................. 10-7
Engine serial number .................................... 10-13
Engine specifications......................................... 10-9
Engine start operation indicator.............. 2-20
Engine start operation indicator
(Manual Transmission models).................. 2-21
If your vehicle overheats ................................ 6-17
Starting the engine............................................. 5-11
Event Data Recorders (EDR)............................. 10-25
Exhaust gas (carbon monoxide) ......................... 5-2 Explanation of scheduled
maintenance items ........................................................ 9-5
Extended storage fuse warning ...................... 2-23
Exterior light indicator............................................. 2-16
F
F.M.V.S.S./C.M.V.S.S. certification label ...... 10-13
Filter
Air cleaner housing filter ................................ 8-15
Changing engine oil and filter ...................... 8-6
Flashers (See hazard warning
flasher switch).................................................................... 6-2
Flat tire........................................................................\
............. 6-3 Repairing flat tire (with emergency tire
puncture repair kit) ................................................ 6-9
Flat towing..................................................................... 10-22
Floor mat cleaning ......................................................... 7-6
Floor mat installation................................................... 7-7
Fluid Automatic Transmission Fluid (ATF) ........ 8-8
Brake and clutch fluid ......................................... 8-9
Brake fluid ..................................................................... 8-9
Capacities and
recommended fluids/lubricants............... 10-2
Engine coolant........................................................... 8-4
Engine oil.....................................................................\
... 8-6
Power steering fluid .............................................. 8-8
Window washer fluid ......................................... 8-10
FM-AM radio with Compact Disc
(CD) player ........................................................................\
. 4-49
FM-AM-SAT radio with Compact Disc
(CD) player ........................................................................\
. 4-58
Fog light switch ............................................................ 2-39
Front manual seat adjustment ............................ 1-4
Front passenger air bag and
status light........................................................................\
1-39