2002 NISSAN ALTIMA engine

If you wax the surface of the hood, be
careful not to let wax get into the washer
nozzle. This may cause clogging or im-
proper windshield washer operation. If wax
gets into the nozzle, remove it with a needle
or small pin.
CHECKING PARKING BRAKE
From the released position, pull the parking
brake lever up slowly and firmly. If the
number of clicks is out of the range listed
above, see an authorized NISSAN dealer.
CHECKING BRAKE PEDAL
With the engine running, check the distance
between the upper surface of the pedal and
the metal floor. If it is out of the range shown
above, see an authorized NISSAN dealer.
ADI0613
LDI0085WDI0129
PARKING BRAKE AND BRAKE
PEDAL
Maintenance and do-it-yourself8-25
ZX

Self-adjusting brakes
Your vehicle is equipped with self-adjusting
brakes.
The front and rear, disc-type brakes self-
adjust every time the brake pedal is applied.
Brake pad wear indicators
The disc brake pads on your vehicle have
audible wear indicators. When a brake pad
requires replacement, it makes a high
pitched scraping or screeching sound when
the vehicle is in motion whether or not the
brake pedal is depressed. Have the brakes
checked as soon as possible if the wear
indicator sound is heard.
Under some driving or climate conditions,
occasional brake squeak, squeal or other
noise may be heard. Occasional brake
noise during light to moderate stops is nor-
mal and does not affect the function or
performance of the brake system.
Proper brake inspection intervals should
be followed.For more information regard-
ing brake inspections, see the appropriate
maintenance schedule information in the
``NISSAN Service and Maintenance Guide.''
BRAKE BOOSTER
Check the brake booster function as fol-
lows:
1. With the engine off, press and release
the brake pedal several times. When
brake pedal movement (distance of
travel) remains the same from one pedal
application to the next, continue on to the
next step.
2. While depressing the brake pedal, start
the engine. The pedal height should drop
a little.
3. With the brake pedal depressed, stop the
engine. Keep the pedal depressed for
about 30 seconds. The pedal height
should not change.
4. Run the engine for one minute without
depressing the brake pedal, then turn it
off. Depress the brake pedal several
times. The pedal travel distance will de-
crease gradually with each depression
as the vacuum is released from the
booster.
If the brakes do not operate properly, see an
authorized NISSAN dealer.
CHECKING CLUTCH PEDAL
Press the pedal by hand and be sure the
free travel is within the limits shown above.
If free travel is out of the range shown
above, see an authorized NISSAN dealer.
ADI0528
CLUTCH PEDAL
8-26Maintenance and do-it-yourself
ZX

ENGINE COMPARTMENT
CAUTION
Never use a fuse of a higher amperage
rating than specified on the fuse box
cover. This could damage the electrical
system or cause a fire.
If the electrical equipment does not come
on, check for an open fuse.
1. Be sure the ignition switch and the head-
light switch are OFF.
2. Open the engine hood.3. Remove the fuse box cover.
4. Remove the fuse with the fuse puller
located in the passenger compartment
fuse box.
5. If the fuse is open, replace it with a new
fuse.
6. If a new fuse also opens, have the elec-
trical system checked and repaired by an
authorized NISSAN dealer.
Fusible links
If the electrical equipment does not operate
and fuses are in good condition, check the
fusible links. If any of these fusible links are
melted, replace only with genuine NISSAN
parts.WDI0149
FUSES
Maintenance and do-it-yourself8-27
ZX

9 Technical 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 ..............9-6
Air conditioner system refrigerant and
lubricant recommendations ...............................9-7
Specifications .........................................................9-8
Engine ...............................................................9-8
Wheels and tires................................................9-9
Dimensions and weights ...................................9-9
When traveling or registering your vehicle in
another country ....................................................9-10
Vehicle identification ............................................9-10
Vehicle identification number (VIN)
plate .................................................................9-10
Vehicle identification number
(chassis number) .............................................9-10
Engine serial number ......................................9-11
F.M.V.S.S. certification label ...........................9-11
Emission control information label ..................9-12Tire placard......................................................9-12
Air conditioner specification label ....................9-12
Installing front license plate..................................9-13
Vehicle loading information ..................................9-13
Terms...............................................................9-13
Determining vehicle load capacity...................9-14
Loading tips .....................................................9-14
Towing a trailer.....................................................9-15
Maximum load limits ........................................9-15
Towing load/specification chart .......................9-16
Towing safety ..................................................9-16
Uniform tire quality grading ..................................9-18
Emission control system warranty .......................9-19
Reporting safety defects (US only) ......................9-19
Readiness for inspection/maintenance (I/M)
test (US only) .......................................................9-20
Owner's manual/service manual order
information .......................................................9-21
In the event of a collision ................................9-22
ZX

The following are approximate capacities. The actual refill capacities may be a little different. When refilling, follow the procedure
described in the ``Maintenance and do-it-yourself'' section to determine the proper refill capacity.
Capacity (Approximate)
Recommended Fluids and Lubricants
US
measureImp
measureLiter
Fuel 20 gal 16-5/8 gal 75.8 Unleaded gasoline with an octane rating of at least 87 AKI (RON 91)*1
Engine oil *7
Drain and refill
With oil filter change QR25DE 4-1/2 qt 3-3/4 qt 4.2
cAPI Certification Mark *2 *3
cAPI grade SG/SH, Energy ConservingI&IIorAPIgrade SJ, Energy
Conserving *2 *3
cILSAC grade GF-I & GF-II *2 *3 VQ35DE 4-1/4 qt 3-1/2 qt 4.0
Without oil filter change QR25DE 4-1/4 qt 3-1/2 qt 4.0
VQ35DE 3-7/8 qt 3-1/4 qt 3.7
Cooling system
With reservoir QR25DE
VQ35DE 9-1/4 qt 7-3/4 qt 8.850% Genuine NISSAN Anti-freeze coolant or equivalent
50% Demineralized or distilled water
Manual transmission gear oil 3-5/8 to 3-7/8 3 to 3-1/8 3.4 to 3.6 API GL-4, Viscosity SAE 75W - 85 only
Automatic transmission fluid
Refill to the proper level according to the instructions in the
``Maintenance and do-it-yourself'' section.NISSAN Matic `D' (Continental U.S. and Alaska) or Canada NISSAN
Automatic Transmission Fluid.*4
Power steering fluidGenuine NISSAN PSF II or equivalent.*8
Brake and clutch fluidGenuine NISSAN Brake Fluid*5 or equivalent
DOT 3 (US FMVSS No. 116)
Multi-purpose grease Ð Ð Ð NLGI No. 2 (Lithium Soap base)
Air conditioning system refrigerant Ð Ð Ð HFC-134a (R-134a)*6
Air conditioning system lubricantsNISSAN A/C System Lubricant Type DH-PS or equivalent*6
*1: For further details, see ``Fuel recommendation.''
*2: For further details, see ``Engine oil and oil filter recommendations.''
*3: For further details, see ``Recommended SAE engine oil viscosity.''
*4: Dexron
TMIII/MerconTMor equivalent may also be used. Outside the Continental United States and Alaska contact an authorized NISSAN dealership for more
information regarding suitable fluids, including recommended brand(s) of DexronTMIII/MerconTMAutomatic Transmission Fluid.
*5: Available in mainland USA through your authorized NISSAN dealer.
*6: For further details, see ªAir conditioner specification label.º
*7: For further details, see ``Changing engine oil.''
*8: Genuine NISSAN PSF, Canada NISSAN Automatic Transmission Fluid, DexronŸ III/MerconŸ, or equivalent ATF may also be used.
CAPACITIES AND
RECOMMENDED FUEL/
LUBRICANTS
9-2Technical and consumer information
ZX

FUEL RECOMMENDATION
For 2.5L engine
Use unleaded regular gasoline with an oc-
tane rating of at least 87 AKI (Anti-Knock
Index) (Research octane number 91).
For 3.5L engine
Use unleaded regular gasoline with an oc-
tane rating of at least 87 AKI (Anti-Knock
Index) number (Research octane number
91).
For improved vehicle performance, NISSAN
recommends the use of unleaded premium
gasoline with an octane rating of at least 91
AKI number (Research octane number 96).
CAUTION
cUsing a fuel other than that specified
could adversely affect the emission
control system, and may also affect
warranty coverage.
cUnder no circumstances should a
leaded gasoline be used since this
will damage the three way catalyst.
Reformulated gasoline
Some fuel suppliers are now producing re-
formulated gasolines. These gasolines are
specially designed to reduce vehicle emis-
sions. NISSAN supports efforts towards
cleaner air and suggests that you use refor-
mulated gasoline when available.
Gasoline containing oxygenates
Some fuel suppliers sell gasoline containing
oxygenates such as ethanol, MTBE and
methanol with or without advertising their
presence. Nissan does not recommend the
use of fuels of which the oxygenate content
and the fuel compatibility for your NISSAN
cannot be readily determined. If in doubt,
ask your service station manager.If you use oxygenate-blend gasoline, please
take the following precautions as the usage
of such fuels may cause vehicle perfor-
mance problems and/or fuel system dam-
age.
cThe fuel should be unleaded and have
an octane rating no lower than that
recommended for unleaded gasoline.
cIf an oxygenate-blend other than a
methanol blend is used, it should con-
tain no more than 10% oxygenate.
(MTBE may, however, be added up to
15%.)
cIf a methanol blend is used, it should
contain no more than 5% methanol
(methyl alcohol, wood alcohol). It
should also contain a suitable amount
of appropriate cosolvents and corro-
sion inhibitors. If not properly formu-
lated with appropriate cosolvents and
corrosion inhibitors, such methanol
blends may cause fuel system dam-
age and/or vehicle performance prob-
lems. At this time, sufficient data is
not available to ensure that all metha-
nol blends are suitable for use in
NISSAN vehicles.
Technical and consumer information
9-3
ZX

If any driveability problems such as engine
stalling and difficult hot-starting are experi-
enced after using oxygenate-blend fuels,
immediately change to a non-oxygenate
fuel or a fuel with a low blend of MTBE.
Take care not to spill gasoline during
refueling. Gasoline containing oxygen-
ates can cause paint damage.
Aftermarket fuel additives
NISSAN does not recommend the use of
any fuel additives (i.e.: fuel injector cleaner,
octane booster, intake valve deposit remov-
ers, etc.) which are sold commercially.
Many of these additives intended for gum,
varnish or deposit removal may contain
active solvents or similar ingredients that
can be harmful to the fuel system and
engine.
Octane rating tips
In most parts of North America, you should
use unleaded gasoline with an octane rating
of at least 87 AKI (Anti-Knock Index) num-
ber. However, you may use unleaded gaso-
line with an octane rating as low as 85 AKI
(Anti-Knock Index) number in high altitude
areas [over 4,000 ft (1,219 m)] such as:
Colorado, Montana, New Mexico, Utah,Wyoming, northeastern Nevada, southern
Idaho, western South Dakota, western Ne-
braska, and the part of Texas which is
directly south of New Mexico.
Using unleaded gasoline with an octane
rating lower than stated above can cause
persistent, heavy ``spark knock.''
(``Spark knock'' is a metallic rapping
noise.) If severe, this can lead to engine
damage. If you detect a persistent heavy
spark knock even when using gasoline
of the stated octane rating, or if you hear
steady spark knock while holding a
steady speed on level roads, have an
authorized dealer correct the condition.
Failure to correct the condition is misuse
of the vehicle, for which NISSAN is not
responsible.
Incorrect ignition timing may result in spark
knock, after-run or overheating, which may
cause excessive fuel consumption or en-
gine damage. If any of the above symptoms
are encountered, have your vehicle
checked at an authorized NISSAN dealer or
other competent service facility.
However, now and then you may notice
light spark knock for a short time while
accelerating or driving up hills. This isno cause for concern, because you get
the greatest fuel benefit when there is
light spark knock for a short time under
heavy engine load.
9-4Technical and consumer information
ZX

ENGINE OIL AND OIL FILTER
RECOMMENDATION
Selecting the correct oil
It is essential to choose engine oil with the
correct quality and viscosity oil to ensure
satisfactory engine life and performance.
NISSAN recommends the use of a low
friction oil (energy conserving oil) in order to
improve fuel economy and conserve en-
ergy. Oils which do not have the specified
quality label should not be used as they
could cause engine damage.Only those engine oils with the American
Petroleum Institute (API) CERTIFICATION
MARK on the front of the container should
be used. This type of oil supersedes the
existing API SG, SH, or SJ and Energy
ConservingI&IIcategories.
If you cannot find engine oil with the API
CERTIFICATION MARK, use an API grade
SG/SH, Energy ConservingI&IIorAPI
grade SJ, Energy Conserving oil. An oil with
a single designation SG or SH, or in combi-
nation with other categories (for example,
SG/CC or SG/CD) may also be used if one
with the API CERTIFICATION MARK cannotbe found. An ILSAC grade GF-I & GF-II oil
can also be used.
Mineral based or synthetic type oils may be
used in your NISSAN vehicle. These oils
must however, meet the API quality and
SAE viscosity ratings specified for your ve-
hicle. Do not mix mineral based and syn-
thetic type oils in the engine.
Oil additives
NISSAN does not recommend the use of oil
additives. The use of an oil additive is not
necessary when the proper oil type is used
and maintenance intervals are followed.
Oil which may contain foreign matter or has
been previously used should not be used.
Oil viscosity
The engine oil viscosity or thickness
changes with temperature. Because of this,
it is important that the engine oil viscosity be
selected based on the temperatures at
which the vehicle will be operated before
the next oil change. The chart ``Recom-
mended SAE viscosity number'' shows the
recommended oil viscosities for the ex-
pected ambient temperatures. Choosing an
oil viscosity other than that recommended
could cause serious engine damage.
WTI0033
Technical and consumer information9-5
ZX