2023 NISSAN ALTIMA fuel filter

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 stop-
ping and starting.
9. Winter Warm Up
• Limit idling time to minimize impact to fuel economy.
• Vehicles typically need no more than 30 seconds of idling at start-up to ef-
fectively circulate the engine oil before
driving.
• Your vehicle will reach its ideal operat- ing 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
possible.
• When entering a hot vehicle, opening the windows will help to reduce the
inside temperature faster, resulting in
reduced demand on your A/C system. • Keep your engine tuned up.
• Follow the recommended scheduled
maintenance.
• Keep the tires inflated to the correct pres- sure. Low tire pressure increases tire
wear and lowers fuel economy.
• Keep the wheels in correct alignment. Im- proper alignment increases tire wear and
lowers fuel economy.
• Use the recommended viscosity engine oil. For additional information, see “Engine
oil and oil filter recommendations”
(P. 10-7).
If any malfunction occurs in the AWD sys-
tem while the engine is running, messages
are displayed in the meter.
If the AWD error warning message is dis-
played, there may be a malfunction in the
AWD system. Reduce vehicle speed and
have your vehicle checked. It is recom-
mended that you visit a NISSAN dealer as
soon as possible.
LSD3252
INCREASING FUEL ECONOMYALL-WHEEL DRIVE (AWD) (if so
equipped)
5-168Starting 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,
apply the parking brake securely and
block the wheels to prevent the ve-
hicle from moving. Move the shif t le-
ver 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
jewelry, such as rings, watches, etc.
before working on your vehicle.
• Always wear eye protection when-
ever you work on your vehicle. •
Your vehicle is equipped with an au-
tomatic engine cooling fan. It may
come on at any time without
warning, even if the ignition switch is
in the OFF position and the engine is
not running. To avoid injury, always
disconnect the negative battery
cable before working near the fan.
• 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 nec-
essary to work under the vehicle,
support it with safety stands.
• Keep smoking materials, flame and
sparks away from the fuel tank and
battery.
• On gasoline engine models, the fuel
filter or fuel lines should be serviced.
It is recommended that you visit a
NISSAN dealer for this service be-
cause the fuel lines are under high
pressure even when the engine is off.
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. Always conform to lo-
cal 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 compo-
nent 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, see
“Owner's Manual/Service Manual order in-
formation” (P. 10-26).
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

NOTE:
The air cleaner filter should not be
cleaned and reused.
Replace the air cleaner filter according to
the maintenance log shown in the ”Mainte-
nance and schedules” section of this
manual.
To remove the air cleaner filter:
• Unlatch the clips and move the aircleaner cover upward.
• Remove the air cleaner filter.
• Wipe the inside of the air cleaner filter housing and the cover with a damp cloth. The viscous paper type filter element (if so
equipped) should not be cleaned and re-
used. The dry paper type filter element (if so
equipped) may be cleaned and reused. Re-
place the air filter according to the mainte-
nance log shown in the “Maintenance and
schedules” section of this manual..
NOTE:
Af ter installing a new air cleaner filter,
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 care-
ful 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.
IN-CABIN MICROFILTER
The in-cabin microfilter restricts the entry
of airborne dust and pollen particles and
reduces some objectionable outside
odors. The filter is located behind the glove
box. For additional information, see the
"Maintenance and schedules" section of
this manual for change intervals.
If replacement is required, it is recom-
mended that you visit a NISSAN dealer for
this service.
LDI3273
AIR CLEANER
8-18Do-it-yourself

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, see “Recom-
mended fluids/lubricants and capaci-
ties” (P. 10-2).
EMISSION CONTROL SYSTEM
MAINTENANCE:
Drive belts*:Check engine drive belts for
wear, fraying or cracking and for proper
tension. Replace any damaged drive belts.
Engine air filter: Replace at specified inter-
vals. 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 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, see “Engine cooling sys-
tem” (P. 8-5).
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 see
“Recommended fluids/lubricants and ca-
pacities” (P. 10-2).
Engine valve clearance*: Inspect only if
valve noise increases. Adjust valve clear-
ance if necessary.
Fuel tank vapor vent system*: Check va-
por lines for leaks or looseness. Tighten
connections or replace parts as necessary.
Fuel filter: Periodic maintenance is not re-
quired. (in-tank type filter)
Fuel lines/connections*: Check the fuel
hoses, piping and connections for leaks,
looseness, or deterioration. Tighten con-
nections 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 deteriorated or damaged
parts immediately.
Brake pads and rotors: Check for wear,
deterioration and fluid leaks. Replace any
deteriorated or damaged 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.
Propeller shaf t(s): Check for damage,
looseness, and grease leakage. (AWD)
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.
9-6Maintenance and schedules

Severe use maintenance:
Inspections:
• Brake pads & rotors
• Exhaust system
• Propeller shaf t (AWD models)
• Steering gear & linkage
• Axle & suspension parts
• Drive shaf t boots20,000 miles/(32,000 km)/
24 months
Perform at number of miles, kilometers or
months, whichever comes first.
Standard maintenance:
Inspections:
• Brake lines & cables
• Brake pads & rotors
• CVT transmission fluid
• Fuel tank vapor vent system
• Fuel lines/connections
• Exhaust system
• Propeller shaf t (AWD models)
• Steering gear and linkage
• Axle & suspension parts
• Differential gear oil (AWD models)
• Transfer case oil (AWD models)
• Drive shaf t boots
• Horn, lights, signals, wipers, rear hatch/hood lif t supports
• All fluids inspected (engine, wiper, brake, power steering, coolant)
• Engine drive belts and hose inspections
• Engine air filter
• Suspension components (shocks, sub- frame, tie rods) • Differential and fluid (AWD models)
• Battery terminals and cables, battery test
• Tire pressure, treadwear and depth
Essentials:
• Replace brake fluid
• Replace engine oil & filter (1)
• Replace in-cabin microfilter
• Replace intelligent key battery
• Tire rotation
Severe use maintenance:
Inspections:
• Brake pads & rotors
• Exhaust system
• Propeller shaf t (AWD models)
• Steering gear & linkage
• Axle & suspension parts
• Drive shaf t boots
Essentials:
• Replace brake fluid
• Replace differential gear oil (AWD models)
• Replace transfer case oil (AWD models)
(1) If the oil replacement indicator is dis-
played, change the engine oil and filter
within two weeks or less than 500 miles
(800 km).
9-12Maintenance and schedules

40,000 miles/(64,000 km)/
48 months
Perform at number of miles, kilometers or
months, whichever comes first.
Standard maintenance:
Inspections:
• Brake lines & cables
• Brake pads & rotors
• CVT transmission fluid
• Engine drive belts
• Fuel tank vapor vent system
• Fuel lines/connections
• Exhaust system
• Propeller shaf t (AWD models)
• Steering gear and linkage
• Axle & suspension part
• Differential gear oil (AWD models)
• Transfer case oil (AWD models)
• Drive shaf t boots
• Horn, lights, signals, wipers, rear hatch/hood lif t supports
• All fluids inspected (engine, wiper, brake, power steering, coolant)
• Hose Inspection
• Engine air filter • Suspension components (shocks, sub-
frame, tie rods)
• Differential and fluid (AWD models)
• Battery terminals and cables, battery test
• Tire pressure, treadwear and depth
Essentials:
• Replace brake fluid
• Replace engine oil & filter (1)
• Replace in-cabin microfilter
• Replace intelligent key battery
• Tire rotation
Severe use maintenance:
Inspections:
• Brake pads & rotors
• Exhaust system
• Propeller shaf t (AWD models)
• Steering gear & linkage
• Axle & suspension parts
• Drive shaf t boots
Essentials:
• Replace brake fluid
• Replace differential gear oil (AWD models)
• Replace transfer case oil (AWD models) (1) If the oil replacement indicator is dis-
played, change the engine oil and filter
within two weeks or less than 500 miles
(800 km).
Maintenance and schedules9-15

60,000 miles/(96,000 km)/
72 months
Perform at number of miles, kilometers or
months, whichever comes first.
Standard maintenance:
Inspections:
• Brake lines & cables
• Brake pads & rotors
• CVT transmission fluid
• Engine drive belts
• Fuel tank vapor vent system
• Fuel lines/connections
• Exhaust system
• Propeller shaf t (AWD models)
• Steering gear and linkage
• Axle & suspension part
• Differential gear oil (AWD models)
• Transfer case oil (AWD models)
• Drive shaf t boots
• Horn, lights, signals, wipers, rear hatch/hood lif t supports
• All fluids inspected (engine, wiper, brake, power steering, coolant)
• Hose inspection
• Engine air filter • Suspension components (shocks, sub-
frame, tie rods)
• Differential and fluid (AWD models)
• Battery terminals and cables, battery test
• Tire pressure, treadwear and depth
Essentials:
• Replace engine air filter (1)
• Replace brake fluid
• Replace engine oil & filter (2)
• Replace in-cabin microfilter
• Replace Intelligent key battery
• Tire rotation
Severe use maintenance:
Inspections:
• Brake pads & rotors
• Exhaust system
• Propeller shaf t (AWD models)
• Axle & suspension parts
• Drive shaf t boots
Essentials:
• Replace brake fluid
• Replace differential gear oil (AWD models)
• Replace transfer case oil (AWD models)
• Replace CVT transmission fluid (1) If operating mainly in dusty conditions,
more frequent maintenance may be
required.
(2) If the oil replacement indicator is dis-
played, change the engine oil and filter
within two weeks or less than 500 miles
(800 km).
9-18Maintenance and schedules

80,000 miles/(128,000 km)/
96 months
Perform at number of miles, kilometers or
months, whichever comes first.
Standard maintenance:
Inspections:
• Brake lines & cables
• Brake pads & rotors
• CVT transmission fluid
• Engine drive belts
• Fuel tank vapor vent system
• Fuel lines/connections
• Exhaust system
• Propeller shaf t (AWD models)
• Steering gear and linkage
• Axle & suspension part
• Differential gear oil (AWD models)
• Transfer case oil (AWD models)
• Drive shaf t boots
• Horn, lights, signals, wipers, rear hatch/hood lif t supports
• All fluids inspected (engine, wiper, brake, power steering, coolant)
• Hose inspections
• Engine air filter • Suspension components (shocks, sub-
frame, tie rods)
• Differential and fluid (AWD models)
• Battery terminals and cables, battery test
• Tire pressure, treadwear and depth
Essentials:
• Replace engine oil & filter (1)
• Replace in-cabin microfilter
• Replace intelligent key battery
• Replace brake fluid
• Tire rotation
Severe use maintenance:
Inspections:
• Brake pads & rotors
• Exhaust system
• Propeller shaf t (AWD models)
• Steering gear & linkage
• Axle & suspension parts
• Drive shaf t boots
Essentials:
• Replace brake fluid
• Replace differential gear oil (AWD models)
• Replace transfer case oil (AWD models) (1) If the oil replacement indicator is dis-
played, change the engine oil and filter
within two weeks or less than 500 miles
(800 km).
Maintenance and schedules9-21