2018 NISSAN 370Z COUPE spark plugs replace

8 Do-it-yourself
Maintenance precautions ....................................................... 8-2
Engine compartment check locations ......................... 8-3VQ37VHR 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 and clutch fluid ................................................................ 8-9 Brake fluid ........................................................................\
............. 8-9
Clutch fluid (Manual transmission models) ..... 8-10
Window washer fluid ............................................................... 8-10
Battery ........................................................................\
........................... 8-11
Jump starting ........................................................................\
... 8-13
Variable voltage control system ..................................... 8-13
Drive belts ........................................................................\
.................. 8-14
Spark plugs ........................................................................\
............... 8-14
Replacing spark plugs ....................................................... 8-15
Air cleaner ........................................................................\
................. 8-15 Windshield wiper blades ....................................................... 8-16
Cleaning ........................................................................\
............. 8-16
Replacing ........................................................................\
.......... 8-16
Brakes ........................................................................\
.......................... 8-17 Self-adjusting brakes ....................................................... 8-17
Brake pad wear warning .............................................. 8-17
Fuses ........................................................................\
............................. 8-18 Engine compartment ...................................................... 8-18
Passenger compartment ............................................. 8-19
Intelligent Key battery replacement ........................... 8-20
Lights ........................................................................\
........................... 8-22 Coupe ........................................................................\
................. 8-22
Roadster ........................................................................\
........... 8-23
Headlights ........................................................................\
....... 8-23
Exterior and interior lights ......................................... 8-24
Wheels and tires ........................................................................\
. 8-26
Tire pressure ........................................................................\
. 8-26
Tire labeling ........................................................................\
.. 8-30
Types of tires ........................................................................\
8-32
Tire chains ........................................................................\
....... 8-33
Changing wheels and tires ....................................... 8-33
Emergency tire puncture repair kit (if
so equipped) ........................................................................\
.. 8-37

8-14Do-it-yourself
SDI2119VQ37VHR engine1. Power steering fluid pump
2. Alternator
3. Crankshaft pulley
4. Air conditioner compressor
5. Drive belt auto-tensioner
WARNING
Be sure the ignition switch is in the
OFF or LOCK position before servi-
cing drive belts. The engine could
rotate unexpectedly.
1. Visually inspect the belt for signs of unusual wear, cuts, fraying or loosen- ess. If the belt is in poor condition or
loose, have it replaced or adjusted. It is
recommended you visit a NISSAN
dealer for this service.
2. Have the belt condition checked reg- ularly for condition and tension in
accordance with the maintenance
schedule shown in the “9. Mainte-
nance and schedules” section.
WARNING
Be sure the engine and the 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.
DRIVE BELTS SPARK PLUGS

SDI2020
REPLACING SPARK PLUGS
If replacement is required, it is recom-
mended you visit a NISSAN dealer for this
service.
Iridium-tipped spark plugs
It is not necessary to replace the iridium-
tipped spark plugs as frequently as the
conventional type spark plugs since they
will last much longer. Follow the main-
tenance schedule shown in the “9. Main-
tenance and schedules” section, but do
not reuse them by cleaning or regapping.
Always replace spark plugs with recom-
mended or equivalent ones.SDI2350
Remove the retainersas illustrated and
pull out the filter element.
The filter element should not be cleaned
and reused. Replace it according to the
maintenance schedule shown in the “9.
Maintenance and schedules” section.
When replacing the filter, wipe the inside
of the air cleaner housing and the cover with a damp cloth.
WARNING
.
Operating the engine with the air
cleaner removed can cause you
or others to be burned. The air
cleaner not only cleans the air, it
stops flame if the engine back-
fires. If it is not there, and the
engine backfires, you could be
burned. Do not drive with the air
cleaner removed, and be careful
when working on the engine with
the air cleaner removed.
. Never pour fuel into the throttle
body or attempt to start the
engine with the air cleaner re-
moved. Doing so could result in
serious injury.
Do-it-yourself8-15
AIR CLEANER

9-6Maintenance and schedules
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).
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 connec-
tions for leaks, looseness, or deterioration.
Tighten connections or replace parts as
necessary.
Spark plugs:
Replace at specified intervals. Install new
plugs of the type as originally 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 deterio-
rated or damaged parts immediately.
Brake pads and rotors:
Check for wear, deterioration and fluid
leaks. Replace any deteriorated or da-
maged parts immediately.Exhaust system:
Visually inspect the exhaust pipes, muffler
and hangers for leaks, cracks, deteriora-
tion, and damage. Tighten connections or
replace parts as necessary.
In-cabin microfilter:
Replace at specified intervals. When driv-
ing for prolonged periods in dusty condi-
tions, replace the filter more frequently.
Steering gear and linkage, axle and
suspension parts:
Check for damage, looseness, and leak-
age of oil or grease. Under severe driving
conditions, inspect more frequently.
Tire rotation:
Tires cannot be rotated, as the front tires
are a different size from the rear tires and
the direction of wheel rotation is fixed in
each tire.
Transmission fluid/oil, differential oil:
Visually inspect for signs of leakage at
specified intervals.
To help ensure smooth, safe and eco-
nomical driving, NISSAN provides two
maintenance schedules that may be
used, depending upon the conditions in
which you usually drive. These schedules
contain both distance and time intervals,
up to 120,000 miles (192,000 km)/144
months. For most people, the odometer
reading will indicate when service is
needed. However, if you drive very little,
your vehicle should be serviced at the
regular time intervals shown in the sche-
dule.
After 120,000 miles (192,000 km)/144
months, continue maintenance at the
same mileage/time intervals.
ADDITIONAL MAINTENANCE ITEMS
FOR SEVERE OPERATING CONDI-
TIONS
Additional maintenance items for se-
vere operating conditions;
should be
performed on vehicles that are driven
under especially demanding conditions.
Additional maintenance items should be
performed if you primarily operate your
vehicle under the following conditions:
. Repeated short trips of less than 5
miles (8 km).
. Repeated short trips of less than 10
miles (16 km) with outside tempera-
tures remaining below freezing.
MAINTENANCE SCHEDULES

9-8Maintenance and schedules
EMISSION CONTROL SYSTEM MAINTENANCE
Abbreviations: I = Inspect and correct or replace as necessary, R = Replace
MAINTENANCE OPERATION
Perform at number of miles,
kilometers or months,
whichever comes first.Miles × 1,000
(km × 1,000) Months MAINTENANCE INTERVAL
5
(8) 6 10
(16) 12 15
(24) 18 20
(32) 24 25
(40) 30 30
(48) 36 35
(56) 42 40
(64) 48 45
(72) 54 50
(80) 60 55
(88) 66 60
(96) 72
Drive belts See NOTE (1) I* I* I*
Air cleaner filter See NOTE (2) R R
EVAP vapor lines I* I* I*
Fuel lines I* I* I*
Fuel filter See NOTE (3)
Engine coolant* See NOTE (4)(5)
Engine oil R R R R R R R R R R R R
Engine oil filter R R R R R R R R R R R R
Spark plugs See NOTE (6) Replace every 105,000 miles (168,000 km)
Intake and exhaust valve
clearance* See NOTE (7)

MAINTENANCE OPERATION
Perform at number of miles,
kilometers or months,
whichever comes first.Miles × 1,000
(km × 1,000) Months MAINTENANCE INTERVAL
65
(104) 78 70
(112) 84 75
(120) 90 80
(128) 96 85
(136) 102 90
(144) 108 95
(152) 114 100
(160) 120 105
(168) 126 110
(176) 132 115
(184) 138 120
(192) 144
Drive belts See NOTE (1)I*I*I*I* I* I*
Air cleaner filter See NOTE (2) RR
EVAP vapor lines I*I* I*
Fuel lines I*I* I*
Fuel filter See NOTE (3)
Engine coolant* See NOTE (4)(5)
Engine oil R R R R R R R R R R R R
Engine oil filter R R R R R R R R R R R R
Spark plugs See NOTE (6) Replace every 105,000 miles (168,000 km)
Intake and exhaust valve
clearance* See NOTE (7)
NOTE:
(1) After 40,000 miles (64,000 km) or 48
months, inspect every 10,000 miles
(16,000 km) or 12 months. Replace the
drive belts if found damaged.
(2) If operating mainly in dusty condi-
tions, more frequent maintenance may
be required.
(3) Periodic maintenance is not re-
quired.
(4) 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.
(5) Use only Genuine NISSAN Long Life
Antifreeze/Coolant (blue) or equivalent
with proper mixture ratio of 50% anti-
freeze and 50% demineralized or dis-
tilled 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) Replace spark plug when the plug
gap exceeds 0.055 in (1.4 mm) even if
within specified replacement mileage.
(7) Periodic maintenance is not re-
quired. However, if valve noise in-
creases, inspect valve clearance.
*: Maintenance items and intervals with
“*” are recommended by NISSAN for
reliable vehicle operation. The owner
does not need to perform such main-
tenance in order to maintain the emis-
Maintenance and schedules9-9