2018 NISSAN SENTRA fuel filter

∙ Keep your engine tuned up.
∙ Follow the recommended scheduledmaintenance.
∙ 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. For additional information, refer to
“Engine oil and oil filter recommenda-
tions” in the “Technical and consumer
information” section of this manual.
WARNING
∙ Do not stop or park the vehicle overflammable materials such as dry
grass, waste paper or rags. They may
ignite and cause a fire. ∙ Safe parking procedures require that
both the parking brake be set and the
transmission placed in P (Park) for
Continuously Variable Transmission
(CVT) models or in an appropriate
gear for manual transmission (M/T)
models. Failure to do so could cause
the vehicle to move unexpectedly or
roll away and result in an accident.
Make sure the shif t lever has been
pushed as far forward as it can go and
cannot be moved without depressing
the foot brake pedal.
SSD0488
INCREASING FUEL ECONOMY PARKING/PARKING ON HILLS
5-70Starting and driving

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 fol-
lowing are general precautions which
should be closely observed.
WARNING
∙ Park the vehicle on a level surface, ap-ply the parking brake securely and
block the wheels to prevent the ve-
hicle from moving. For manual trans-
mission models, move the shif t lever
to N (Neutral). For CVT models, move
the shif t lever to P (Park).
∙ Be sure the ignition switch is in the OFF or LOCK position when perform-
ing any parts replacement or repairs.
∙ If you must work with the engine run- ning, 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 jew-
elry, such as rings, watches, etc. be-
fore working on your vehicle.
∙ Always wear eye protection whenever you work on your vehicle. ∙ If you must run the engine in an en-
closed 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 neces-
sary to work under the vehicle, sup-
port it with safety stands.
∙ Keep smoking materials, flame and sparks away from the fuel tank and
battery.
∙ Because the fuel lines on gasoline en- gine models are under high pressure
even when the engine is off, it is rec-
ommended that you visit a NISSAN
dealer for service of the fuel filter or
fuel lines.
∙
Your vehicle is equipped with an auto-
matic engine cooling fan. It may come on
at any time without warning, even if the
ignition key is in the OFF position and the
engine is not running. To avoid injury, al-
ways disconnect the negative battery
cable before working near the fan.
CAUTION
∙ Do not work under the hood while the
engine is hot. Turn the engine off and
wait until it cools down. ∙
Avoid contact with used engine oil and
coolant. Improperly disposed engine
oil, engine coolant and/or other vehicle
fluids can damage the environment. Al-
ways conform to local regulations for
disposal of vehicle fluid.
∙ Never leave the engine or the trans- mission related component harness
connector disconnected while the ig-
nition switch is in the ON position.
∙ Never connect or disconnect the bat- tery or any transistorized component
while the ignition switch is in the ON
position.
This “Do-it-yourself ” section gives instruc-
tions regarding only those items which are
relatively easy for an owner to perform.
A Genuine NISSAN service manual is also
available. For additional information, refer
to “Owner’s Manual/Service Manual order
information” in the “Technical and con-
sumer information” section of this manual.
You should be aware that incomplete or
improper servicing may result in operating
difficulties or excessive emissions, and
could affect warranty coverage. If in doubt
about any servicing, it is recommended
that you have it done by a NISSAN dealer.
MAINTENANCE PRECAUTIONS
8-2Do-it-yourself

∙Always replace spark plugs with rec-
ommended or equivalent ones.
If replacement is required, it is recom-
mended that you visit a NISSAN dealer for
this service.
The air cleaner filter should not be cleaned
and reused. Replace it according to the
maintenance log shown in the “Mainte-
nance and schedules” section of this
manual.
To remove the air cleaner filter:1. Unlatch the retaining clips
A.
2. Pull up at points
Band remove.
3. Pull up and remove air cleaner housing
C. 4. Remove the air cleaner filter. Wipe the
inside of the air cleaner filter housing
and the cover with a damp cloth, then
replace air cleaner filter.
NOTE:
Af ter installing a new air cleaner, make
sure the air cleaner cover is seated in the
housing and latch the clips.
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 the
flame if the engine backfires. If it isn’t
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 removed. Doing so
could result in serious injury.
LDI2171
AIR CLEANER
8-18Do-it-yourself

Fluid leaks:Check under the vehicle for
fuel, oil, water or other fluid leaks af ter the
vehicle has been parked for a while. Water
dripping from the air conditioner af ter use
is normal. If you should notice any leaks or if
fuel fumes are evident, check for the cause
and have it corrected immediately.
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 from the underbody, otherwise
rust may form on the floor pan, frame, fuel
lines and exhaust system. At the end of
winter, the underbody should be thor-
oughly flushed with plain water, in those
areas where mud and dirt may have accu-
mulated. For additional information, refer
to the “Appearance and care” section of this
manual.
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 opera-
tion. For additional information, refer to
“General maintenance” in this section.
Items marked with
“*”are recommended
by NISSAN for reliable vehicle operation.
You are not required to perform mainte-
nance on these items in order to maintain
the warranties which come with your
NISSAN. Other maintenance items and in-
tervals are required.
When applicable, additional information
can be found in the “Do-it-yourself ” section
of this manual. NOTE:
NISSAN does not advocate the use of
non-OEM approved af termarket flush-
ing systems and strongly advises
against performing these services on a
NISSAN product. Many of the af termar-
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 “Recom-
mended fluids/lubricants and capaci-
ties” in the “Technical and consumer in-
formation” section 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 inter-
vals. When driving for prolonged periods in
dusty conditions, check/replace the filter
more frequently.
EXPLANATION OF SCHEDULED
MAINTENANCE ITEMS
Maintenance and schedules9-5

Engine coolant*:Replace coolant at the
specified interval. When adding or replac-
ing coolant, be sure to use only Genuine
NISSAN Long Life Antifreeze/Coolant (blue)
or equivalent with the proper mixture. (For
additional information on the proper mix-
ture for your area, refer to “Engine cooling
system” in the “Do-it-yourself ” section of
this manual.)
NOTE: Mixing any other type of coolant
or the use of non-distilled water may re-
duce the recommended service interval
of the coolant.
Engine oil and oil filter: Replace engine oil
and oil filter at the specified intervals. For
recommended oil grade and viscosity refer
to “Recommended fluids/lubricants and
capacities” in the “Technical and consumer
information” section of this manual.
Engine valve clearance*: Inspect only if
valve noise increases. Adjust valve clear-
ance if necessary.
Evaporative emissions control vapor
lines*: Check vapor lines for leaks or loose-
ness. Tighten connections or replace parts
as necessary.
Fuel filter: Periodic maintenance is not re-
quired. (in-tank type filter) Fuel lines*:
Check the fuel hoses, piping
and connections for leaks, looseness, or
deterioration. Tighten connections or re-
place 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 deteriorated or damaged
parts immediately.
Brake pads, rotors, drums and linings:
Check for wear, deterioration and fluid
leaks. Replace any deteriorated or dam-
aged parts immediately.
Exhaust system: Visually inspect the ex-
haust pipes, muffler and hangers for leaks,
cracks, deterioration, and damage. Tighten
connections or replace parts as necessary.
In-cabin microfilter: Replace at specified
intervals. When driving for prolonged peri-
ods in dusty conditions, replace the filter
more frequently. Steering gear and linkage, axle and sus-
pension parts, drive shaf t boots:
Check
for damage, looseness, and leakage of oil
or grease. Under severe driving conditions,
inspect more frequently.
Tire rotation: Tires should be rotated every
5,000 miles (8,000 km) according to the in-
structions under “General maintenance” in
this section. When rotating tires, check for
damage and uneven wear. Replace if nec-
essary.
Transmission fluid/oil: Visually inspect for
signs of leakage at specified intervals. If
using a car-top carrier, or driving on rough
or muddy roads:
∙ Replace the manual transaxle gear oil every 20,000 miles or 24 months.
∙ Replace the CVT fluid every 60,000 miles (96,000 km) or request the dealer to in-
spect the fluid deterioration data using
a CONSULT. If the deterioration data is
more than 210000, replace the CVT fluid.
9-6Maintenance and schedules

The following tables show the standard
maintenance schedule. Depending upon
weather and atmospheric conditions,
varying road surfaces, individual driving
habits and vehicle usage, additional or
more frequent maintenance may be re-
quired.Af ter 120,000 miles
(192,000 km)/144 months, continue
maintenance at the same mileage/time
interval.
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 x 1,000
(km x 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 belt See NOTE (1) 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 RRRRRRRRRRRR
Engine oil filter RRRRRRRRRRRR
Spark plugs (Iridium/Platinum - tipped
type) See NOTE (6)
Replace every 105,000 miles (168,000 km)
Intake and exhaust valve clearances See NOTE (7)
STANDARD MAINTENANCE
9-8Maintenance and schedules

MAINTENANCE OPERATION
Perform at number of miles, kilometers or months, whichever comes first. miles x 1,000
(km x 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 belt 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 RRRRRRRRRRRR
Engine oil filter RRRRRRRRRRRR
Spark plugs (Iridium/Platinum - tipped
type) See NOTE (6)
Replace every 105,000 miles (168,000 km)
Intake and exhaust valve clearances See NOTE (7)
Maintenance and schedules9-9

10 Technical and consumer information
Recommended fluids/lubricants and
capacities...................................... 10-2
Fuel recommendation ....................... 10-4
Engine oil and oil filter
recommendations .......................... 10-7
Air conditioner system (if so equipped)
refrigerant and oil recommendations ........10-8
Specifications .................................. 10-9
Engine ...................................... 10-9
Wheels and tires ............................ 10-10
Dimensions and weights ...................10-10
When traveling or registering in another
country ......................................... 10-11
Vehicle identification ........................... 10-11
Vehicle Identification Number (VIN)
plate ........................................ 10-11
Vehicle identification number
(chassis number) ............................ 10-11
Engine serial number ....................... 10-12
F.M.V.S.S./C.M.V.S.S. certification label ........10-12 Emission control information label
.........10-12
Tire and Loading Information label .........10-13
Air conditioner specification label
(if so equipped) ............................. 10-13
Installing front license plate ....................10-13
Vehicle loading information ...................10-14
Terms ...................................... 10-14
Vehicle load capacity ....................... 10-15
Loading tips ................................ 10-17
Measurement of weights ...................10-17
Towing a trailer ................................ 10-18
Flat towing ................................. 10-18
Uniform tire quality grading ....................10-18
Emission control system warranty .............10-19
Reporting safety defects ......................10-20
Readiness for Inspection/Maintenance (I/M)
test ............................................ 10-21
Event Data Recorders (EDR) ....................10-21
Owner’s Manual/Service Manual order
information ................................... 10-22