
7Do-it-yourself operations
Maintenance precautions .......................................7-2
Engine compartment check locations -
GA engine .............................................................7-3
Engine compartment check locations -
SR engine ..............................................................7-4
Engine cooling system ...........................................7-5
Checking engine coolant level ...............................7-5
Changing engine coolant .......................................7-6
Engine oil ...............................................................7-8
Checking engine oil level .......................................7-8
Changing engine oil ...............................................7-9
Changing engine oil filter .....................................7-10
Automatic transmission fluid (ATF) ......................7-11
Temperature conditions for checking ATF ...........7-12
Power steering fluid..............................................7-13
Brake fluid ............................................................7-14
Window washer fluid ............................................7-14
Battery ..................................................................7-15Jump starting ........................................................7-16
Drive belts ............................................................7-17
Spark plug replacement .......................................7-18
Air cleaner housing filter ......................................7-19
Wiper blades ........................................................7-20
Parking brake check.............................................7-21
Brake pedal ..........................................................7-21
Brake booster .......................................................7-22
Clutch pedal .........................................................7-23
Fuses ....................................................................7-23
Light bulbs ............................................................7-25
Headlights ............................................................7-25
Headlight aiming adjustment ................................7-26
Bulb replacement .................................................7-26
Front fog light bulb replacement (if so
equipped) .............................................................7-31
Wheels and tires ..................................................7-32
ZX

When performing any inspection or mainte-
nance work on your vehicle, always take
care to prevent serious accidental injury to
yourself or damage to the vehicle. The
following are general precautions which
should be closely observed.
WARNING
cPark the vehicle on a level surface,
apply the parking brake securely and
block the wheels to prevent the ve-
hicle from moving. For a manual
transmission, move the gearshift
control lever to Neutral (N). For an
automatic transmission, move the
shift lever to P (Park).
cBe sure the ignition key is OFF when
performing any parts replacement or
repairs.
cBe sure to turn the ignition key to the
OFF or LOCK position. When the
ignition key is in the ON or ACC
position, the cooling fan may start to
operate suddenly even when the en-
gine is not running.cIf you must work with the engine
running, keep your hands, clothing,
hair and tools away from moving
fans, belts and any other moving
parts.
cIt is advisable to remove ties and any
jewelry, such as rings, watches, etc.,
before working on your vehicle.
cIf you must run the engine in an
enclosed space such as a garage, be
sure there is proper ventilation for
exhaust gases.
cNever 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.
cKeep smoking materials, flame and
sparks away from fuel and battery.
cOn gasoline engine models with the
Multiport Fuel Injection (MFI) sys-
tem, the fuel filter or fuel lines
should be serviced by a NISSAN
dealer because the fuel lines are
under high pressure even when the
engine is off.
CAUTION
cDo not work under the hood while
the engine is hot. Turn the engine off
and wait until it cools down.
cNever connect or disconnect either
the battery or any transistorized
component connector while the igni-
tion is ON.
c
Avoid contact with used motor oil.
Improperly disposed motor oil and/or
other vehicle fluids can hurt the en-
vironment. Always conform to local
regulations for disposal of vehicle
fluid.
This ``Do-it-yourself operations'' section
gives instructions regarding only those
items which are relatively easy for an owner
to perform.
You should be aware that incomplete or
improper servicing may result in operating
difficulties or excessive emissions, and
could affect your warranty coverage.If in
doubt about any servicing, have it done
by your NISSAN dealer.
MAINTENANCE
PRECAUTIONS
7-2
ZX

5. Fit the new plugs, one at a time, into the
spark plug socket and install them. Turn
each plug in several full turns by hand,
then tighten with a spark plug socket to
the correct torque. Do not overtighten.
Spark plug tightening torque:
14 to 22 ft-lb (20 to 29 N²m)
6. Holding the boot, reconnect each high
tension cable to its proper spark plug by
pushing it on until you feel a snap.
7. Reinstall all brackets as necessary.
SR20DE Engine
Platinum-tipped spark plug
It is not necessary to replace platinum-
tipped spark plugs as frequently as conven-
tional type spark plugs because they last
much longer. Follow the maintenance
schedule, but do not reuse the spark plugs
by cleaning or regapping. Blue rings on the
ceramic portion indicate that the plugs are
platinum-tipped.
cAlways replace spark plugs with rec-
ommended or equivalent ones.The air cleaner filter should not be cleaned
and reused. Replace it according to the
maintenance intervals shown in the ``Main-
tenance schedule'' 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 off can
cause you or others to be burned. The air cleaner
not only cleans the air, it stops flame if the engine
backfires. If it isn't there, and the engine back-
fires, you could be burned. Don't drive with it off,
and be careful working on the engine with the air
cleaner off.
DI0205ADI0631
AIR CLEANER HOUSING
FILTER
7-19
ZX
![NISSAN SENTRA 1997 B14 / 4.G Owners Manual Schedule 1
Abbreviations: R = Replace I = Inspect. Correct or replace if necessary. [ ]: At the mileage intervals only
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Perform at number of miles,
kilometers NISSAN SENTRA 1997 B14 / 4.G Owners Manual Schedule 1
Abbreviations: R = Replace I = Inspect. Correct or replace if necessary. [ ]: At the mileage intervals only
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Perform at number of miles,
kilometers](/manual-img/5/605/w960_605-163.png)
Schedule 1
Abbreviations: R = Replace I = Inspect. Correct or replace if necessary. [ ]: At the mileage intervals only
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Perform at number of miles,
kilometers or months,
whichever comes first.Miles ý 1,000 3.75 7.5 11.25 15 18.75 22.5 26.25 30 33.75 37.5 41.25 45 48.75 52.5 56.25 60
(km ý 1,000) (6) (12) (18) (24) (30) (36) (42) (48) (54) (60) (66) (72) (78) (84) (90) (96)
Months 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48
Emission control system maintenance
Drive belts See NOTE (1).I*
Air cleaner filter See NOTE (2). [R] [R]
Idle rpm (GA16DE engine)I* I*
Vapor linesI* I*
Fuel linesI* I*
Fuel filter See NOTE (3)*.
Engine coolant See NOTE (4)*.R*
Engine oilRRRRRRRRRRRRRRRR
Engine oil filter (Use Nissan PREMIUM type or equivalent)RRRRRRRRRRRRRRRR
Spark plugs (GA16DE engine)[R] [R]
(SR20DE engine) (PLATINUM-TIPPED type) See NOTE (5)*.[R]
Intake & exhaust valve clearance (GA16DE engine) See NOTE (6)*.
NOTE: (1) After 60,000 miles (96,000 km) or 48 months, inspect every 15,000 miles (24,000 km) or 12 months.
(2) If operating mainly in dusty conditions, more frequent maintenance may be required.
(3) If vehicle is operated under extremely adverse weather conditions or in areas where ambient temperatures are either extremely low or extremely
high, the filters might become clogged. In such an event, replace them immediately.
(4) After 60,000 miles (96,000 km) or 48 months, replace every 30,000 miles (48,000 km) or 24 months.
(5) Original equipment platinum-tipped plugs should be replaced at 60,000 miles (96,000 km). Conventional spark plugs can be used but should be
replaced at 30,000 miles (48,000 km) intervals. (See ``Technical and consumer Information'' section for details.)
(6) If valve noise increases, inspect valve clearance.
* Maintenance items and intervals with ``*'' are recommended by NISSAN 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.
8-6
ZX
![NISSAN SENTRA 1997 B14 / 4.G Owners Manual Schedule 2
Abbreviations: R = Replace I = Inspect. Correct or replace if necessary. [ ]: At the mileage intervals only
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Perform at number of miles,
kilometers NISSAN SENTRA 1997 B14 / 4.G Owners Manual Schedule 2
Abbreviations: R = Replace I = Inspect. Correct or replace if necessary. [ ]: At the mileage intervals only
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Perform at number of miles,
kilometers](/manual-img/5/605/w960_605-165.png)
Schedule 2
Abbreviations: R = Replace I = Inspect. Correct or replace if necessary. [ ]: At the mileage intervals only
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Perform at number of miles,
kilometers or months, whichever comes first.Miles ý 1,000 7.5 15 22.5 30 37.5 45 52.5 60
(km ý 1,000) (12) (24) (36) (48) (60) (72) (84) (96)
Months 6 12 18 24 30 36 42 48
Emission control system maintenance
Drive belts See NOTE (1).I*
Air cleaner filter[R] [R]
Idle rpm (GA16DE engine)I* I*
Vapor linesI* I*
Fuel linesI* I*
Fuel filter See NOTE (2)*.
Engine coolant See NOTE (3)*.R*
Engine oilRRRRRRRR
Engine oil filter (Use Nissan PREMIUM type or equivalent)RRRRRRRR
Spark plugs (GA16DE engine)[R] [R]
(SR20DE engine) (PLATINUM-TIPPED type) See NOTE (4)*.[R]
Intake & exhaust valve clearance (GA16DE engine) See NOTE (5)*.
NOTE: (1) After 60,000 miles (96,000 km) or 48 months, inspect every 15,000 miles (24,000 km) or 12 months.
(2) If vehicle is operated under extremely adverse weather conditions or in areas where outside temperatures are either extremely low or extremely high, the
filters might become clogged. In such an event, replace them immediately.
(3) After 60,000 miles (96,000 km) or 48 months, replace every 30,000 miles (48,000 km) or 24 months.
(4) Original equipment platinum-tipped plugs should be replaced at 60,000 miles (96,000 km). Conventional spark plugs can be used but should be replaced
at 30,000 miles (48,000 km) intervals. (See ``Technical and consumer information'' section for details.)
(5) If valve noise increases, inspect valve clearance.
* Maintenance items and intervals with ``*'' are recommended by NISSAN 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.
8-8
ZX

Additional information on the following
items with ``*'' is found in the ``Do-it-
yourself operations'' section.
Emission control system
maintenance
Drive belts* ÐCheck drive belts for wear,
fraying or cracking and also for proper tension.
Replace the drive belts if found damaged.
Air cleaner filter ÐUnder normal driving
conditions, the air cleaner filter should be
replaced in accordance with the maintenance
schedule. However, driving the vehicle in
dusty areas may cause more rapid clogging
of the element. Consequently, the element
may have to be replaced more frequently.
Vapor lines ÐCheck vapor lines and con-
nections for failure or looseness. If leaks are
found, replace them.
Fuel lines ÐCheck the fuel hoses, piping
and connections for leaks, looseness or
deterioration. Replace any parts if they are
damaged.
Fuel filter ÐIf the vehicle is operated under
extremely adverse weather conditions or in
areas where ambient temperatures are ei-
ther extremely low or extremely high, thefilter might become clogged. In such an
event, replace the filter immediately.
Engine coolant* ÐDrain and flush the
cooling system.
Engine oil & oil filter* ÐUnder normal
driving conditions, the engine oil and oil filter
should be replaced in accordance with the
maintenance schedule. However, under se-
vere driving conditions, they may have to be
replaced more frequently.
Spark plugs* ÐReplace with new plugs
having the correct heat range.
Intake & exhaust valve clearance Ð
Check and adjust the valve clearance.
Chassis and body maintenance
Brake lines & cables ÐCheck the brake
lines and hoses (including brake booster
vacuum hoses, connections & check valve)
and parking brake cables for proper attach-
ment, leaks, cracks, chafing, abrasion, de-
terioration, etc.
Brake pads, discs, drums & linings Ð
Check these and the other neighboring brake
components for wear, deterioration and
leaks. Under severe driving conditions, they
may have to be inspected more frequently.
Manual & automatic transmission fluid*
ÐCheck the fluid level and visually inspect
for signs of leakage.
Under severe driving conditions, the fluid
should be replaced at the specified interval.
Steering gear & linkage, axle & suspen-
sion parts, and drive shaft boots Ð
Check for damage, looseness and leakage
of oil or grease. Under severe driving con-
ditions, more frequent inspection should be
performed.
Steering linkage ball joints & front sus-
pension ball joints ÐCheck the ball joints
for damage, looseness and grease leakage.
Exhaust system ÐVisually check the ex-
haust pipes, muffler, and hangers for proper
attachment, leaks, cracks, chafing, abra-
sion, deterioration, etc. Under severe
driving conditions, inspection should be per-
formed more frequently.
Supplemental air bag system (if so
equipped) ÐCheck the supplemental air
bag system components for proper attach-
ment, damage, deformities, cracks, rust,
etc. Work around and on the supplemental
air bag system should be done by an autho-
rized NISSAN dealer.
EXPLANATION OF
MAINTENANCE ITEMS
8-10
ZX

9Technical and consumer information
Capacities and recommended fuel/lubricants ........9-2
Fuel recommendation.............................................9-3
Engine oil and oil filter recommendation................9-5
Recommended SAE viscosity number...................9-7
Air conditioner system refrigerant and
lubricant recommendations ....................................9-7
Engine ....................................................................9-8
Wheel/tire size ........................................................9-9
Dimensions and weights ........................................9-9
Registering your vehicle in another country ........9-10
Vehicle identification ............................................9-10
Vehicle identification number (VIN) plate.............9-10
Vehicle identification number (chassis
number) ................................................................9-10Engine serial number ...........................................9-11
F.M.V.S.S. certification label ................................9-11
Emission control information label .......................9-12
Tire placard ..........................................................9-12
Air conditioner specification label.........................9-12
Installing license plate ..........................................9-13
Vehicle loading information ..................................9-13
Trailer towing ........................................................9-14
Uniform tire quality grading ..................................9-17
Emission control system warranty .......................9-18
Reporting safety defects (USA) ...........................9-18
Readiness for inspection/maintenance (I/M)
test ........................................................................9-19
ZX

The following are approximate capacities. The actual refill capacities may be a little different. When refilling, follow the procedure
instructed in the ``Do-it-yourself operations'' section to determine the proper refill capacity.
Capacity (Approximate)
Recommended specifications
US
measureImp
measureLiter
Fuel 13-1/4 gal 11 gal 50 Unleaded gasoline with an octane rating of at least 87 AKI (RON 91)*1
Engine oil (Refill)
With oil filter GA16DE 3-3/8 qt 2-7/8 qt 3.2
API SG or SH and Energy Conserving II*2
API Certification Mark *2 SR20DE 3-5/8 qt 3 qt 3.4
Without oil filter GA16DE 3 qt 2-1/2 qt 2.8
SR20DE 3-3/8 qt 2-7/8 qt 3.2
Cooling system
With reservoir
Antifreeze coolant
(Ethylene glycol base) Manual transmission: SR20DE 6-1/2 qt 5-1/2 qt 6.2
GA16DE 5-1/2 qt 4-5/8 qt 5.2
Automatic transmission: SR20DE 6-1/2 qt 5-1/2 qt 6.2
GA16DE 6 qt 5 qt 5.7
Manual transmission gear oilRS5F31A 6-1/8 - 6-3/4 pt 5-1/8 - 5-5/8 pt 2.9 - 3.2
API GL-4*3
RS5F32V 7-7/8 - 8-1/4 pt 6-1/2 - 6-7/8 pt 3.7 - 3.9
Automatic transmission fluid
Refill to the proper level according to the instructions in the
``Do-it-yourself operations'' section.Nissan Matic `D' (Continental U.S. and Alaska) or Genuine Nissan Auto-
matic Transmission Fluid (Canada).*4
Power steering fluidType DEXRON
TMIIE, DEXRONTMIII or equivalent.
Brake fluidGenuine Nissan Brake Fluid*5 or equivalent
DOT 3 (US FMVSS No. 116)
Multi-purpose grease Ð Ð Ð NLGI No. 2 (Lithium Complex)
Air conditioning system refrigerant Ð Ð Ð HFC-134a (R-134a)*6
Air conditioning system lubricantsNissan A/C System Lubricant Type R or equivalent*6
*1: For further details, see ``Fuel recommendation.''
*2: For further details, see ``Recommended SAE engine oil viscosity.''
*3: For further details, see ``Recommended SAE viscosity number.''
*4: Dexronž III/Merconž or equivalent may also be used. Outside the Continental United States and Alaska contact a Nissan dealership for more information
regarding suitable fluids, including recommended brand(s) of Dexronž III/Merconž or Dexronž IIE/Merconž Automatic Transmission Fluid.
*5: Available in mainland USA through your Nissan dealer.
*6: For further details, see ªAir conditioner specification label.º
CAPACITIES AND
RECOMMENDED FUEL/
LUBRICANTS
9-2
ZX