2006 NISSAN ALTIMA engine

1. Power steering fluid pump
2. Water pump
3. Generator
4. Air conditioner (if so equipped)
5. Crank pulley
6. Auto tensioner pulley
WARNING
Be sure the ignition key is in the OFF or
LOCK position. The engine could rotate
unexpectedly.1. Visually inspect the belt(s) for signs of un-
usual wear, cuts, fraying or looseness. If the
belt is in poor condition or is loose, have it
replaced or adjusted by a NISSAN dealer.
2. Have the belts checked regularly for condi-
tion and tension in accordance with the
maintenance schedule found in the
“NISSAN Service and Maintenance Guide”.
1. Power steering fluid pump
2. Crank pulley
3. Generator
4. Air conditioner
QR25DE engine
WDI0225
VQ35DE engine
WDI0226
DRIVE BELTS
Maintenance and do-it-yourself8-19
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REPLACING SPARK PLUGS
Platinum-tipped spark plugs
It is not necessary to replace platinum-tipped
spark plugs as frequently as conventional type
spark plugs because they last much longer. Fol-
low the maintenance log shown in the “NISSAN
Service and Maintenance Guide”. Do not service
platinum-tipped spark plugs by cleaning or re-
gapping.
cAlways replace spark plugs with rec-
ommended or equivalent ones.
WARNING
Be sure the engine and ignition switch are
off and that the parking brake is engaged
securely.
CAUTION
Be sure to use the correct socket to re-
move the spark plugs. An incorrect socket
can damage the spark plugs.
QR25DE
1. Disconnect the negative battery cable.
2. Remove the engine cover.
3. Remove the coil pack bolt.
4. Remove the coil pack/spark plug boot from
the spark plug.
5. Remove the spark plugs with a spark plug
socket.
The plug socket has a rubber seal that holds
the spark plug so it does not fall when it is
pulled out. Make sure each spark plug is
snugly fitted into the spark plug socket.6. Fit the new plugs, one at a time, into the
spark plug socket and install them.Use
only the specified spark plugs.Turn
each plug several full turns by hand, then
tighten with the spark plug socket to the
correct torque. Do not overtighten.
Spark plug tightening torque:
14 - 22 ft-lb (20 - 29 N·m)
7. Install the coil pack/spark plug boot on the
spark plug by pushing it on until you feel a
snap.
8. Install the coil pack bolt.
Coil pack tightening torque:
48 - 65 in-lb (5.4 - 7.3 N·m)
9. Install the engine cover.
10. Connect the negative battery cable.
VQ35DE
If replacement is required, please see your
NISSAN dealer for assistance.
WDI0005
SPARK PLUGS
8-20Maintenance and do-it-yourself
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The air cleaner filter should not be cleaned and
reused. Replace it according to the maintenance
log shown in the “NISSAN Service and Mainte-
nance Guide.” When replacing the filter, wipe the
inside of the air cleaner filter housing and the
cover with a damp cloth.
To remove the air cleaner filter:
s1Loosen the screw clamp.
s2Push down on the clips.
3. Remove the air cleaner housing.
WARNING
cOperating the engine with the air
cleaner removed can cause you or oth-
ers 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.
cNever 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 (if so
equipped)
The in-cabin microfilter restricts the entry of air-
borne dust and pollen particles and reduces
some objectionable outside odors. The filter is
located behind the glove box. Refer to the
“NISSAN Service and Maintenance Guide” for
change intervals.
To replace the filter, perform the following proce-
dure:1. Remove the 2 lower glove box hinge pins.
Remove the glove box from the opening and
let it hang by the cord.
LDI0428LDI0154
AIR CLEANER
Maintenance and do-it-yourself8-21
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If you wax the surface of the hood, be careful not
to let wax get into the washer nozzle
s1. This may
cause clogging or improper windshield washer
operation. If wax gets into the nozzle, remove it
with a needle or small pin
s2.
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, see a NISSAN dealer.
c7 - 8 clicks under pulling force of
44 lb (196 N) .
CHECKING BRAKE PEDAL
With the engine running, check the distanceA
between the upper surface of the pedal and the
metal floor. If it is out of the range shown, see a
NISSAN dealer.
Distance A: Under depression force of
110 lb (490 N)
Automatic
TransmissionManual
Transmission
3.55 in (90.3 mm)
or more3.31 in (84 mm)
or more
WDI0424
WDI0228WDI0229
PARKING BRAKE AND BRAKE PEDAL
Maintenance and do-it-yourself8-25
ZREVIEW COPYÐ2006 Altima(l30)
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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.
WARNING
See a NISSAN dealer for a brake system
check if the brake pedal height does not
return to normal.
Brake pad wear indicators
The disc brake pads on your vehicle have audible
wear indicators. When a brake pad requires re-
placement, a high pitched scraping or screech-
ing sound will be heard when the vehicle is in
motion. The noise will be heard 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, occa-
sional brake squeak, squeal or other noise may
be heard. Occasional brake noise during light to
moderate stops is normal and does not affect the
function or performance of the brake system.Proper brake inspection intervals should
be followed.For more information regarding
brake inspections, see the appropriate mainte-
nance schedule information in the “NISSAN Ser-
vice and Maintenance Guide”.
BRAKE BOOSTER
Check the brake booster function as follows:
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 de-
pressing the brake pedal, then turn it off.
Depress the brake pedal several times. The
pedal travel distance will decrease gradually
with each depression as the vacuum is re-
leased from the booster.
If the brakes do not operate properly, have the
brakes checked by a NISSAN dealer.
ENGINE COMPARTMENT
CAUTION
Never use a fuse of a higher or lower
amperage rating than specified on the
fuse box cover. This could damage the
electrical system or cause a fire.
If any electrical equipment does not come on,
check for an open fuse.
1. Be sure the ignition switch and the headlight
switch are OFF.
2. Open the engine hood.
WDI0230
FUSES
8-26Maintenance and do-it-yourself
ZREVIEW COPYÐ2006 Altima(l30)
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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 oil
recommendations..............................9-6
Specifications.....................................9-7
Engine........................................9-7
Wheels and tires...............................9-8
Dimensions and weights........................9-8
When traveling or registering your vehicle in
another country...................................9-9
Vehicle identification...............................9-9
Vehicle identification number (VIN) plate..........9-9
Vehicle identification number
(chassis number)...............................9-9
Engine serial number...........................9-10
F.M.V.S.S./C.M.V.S.S. certification label..........9-10
Emission control information label...............9-11
Tire and loading information label................9-11Air conditioner specification label................9-11
Installing front license plate........................9-12
Vehicle loading information........................9-12
Terms........................................9-12
Vehicle load capacity..........................9-14
Loading tips..................................9-15
Measurement of weights.......................9-16
Towing a trailer...................................9-16
Maximum load limits...........................9-16
Towing load/specification.......................9-17
Towing safety.................................9-17
Flat towing....................................9-21
Uniform tire quality grading........................9-21
Emission control system warranty..................9-22
Reporting safety defects (US only).................9-23
Readiness for inspection/maintenance (I/M) test.....9-23
Event data recorders..............................9-24
Owner’s Manual/Service Manual order information . . . 9-24
In the event of a collision.......................9-25
ZREVIEW COPYÐ2006 Altima(l30)
Owners ManualÐUSA_English(nna)
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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 measure Imp measure Liter
Fuel 20 gal 16-5/8 gal 75.6 Unleaded gasoline with an octane rating of at least 87 AKI (RON 91)*1
Engine oil *9
Drain and Refill
With oil filter
changeQR25DE 4-1/2 qt 3-3/4 qt 4.2 QR25DE engine
• API Certification Mark *2 *3
• API grade SG/SH Energy Conserving II or API grade SJ or SL, Energy Conserving *2 *3
• ILSAC grade GF-II or GF-III*2 *3
VQ35DE engine
• API Certification Mark *2 *3
• API grade SG/SH, Energy ConservingI&IIorAPIgrade SJ or SL, Energy Conserving *2 *3
• ILSAC grade GF-I, GF-II, or GF-III*2 *3 VQ35DE 4-1/2 qt 3-3/4 qt 4.2
Without oil
filter changeQR25DE 4-1/4 qt 3-1/2 qt 4.0
VQ35DE 4-1/4 qt 3-1/2 qt 4.0
Cooling system
With reservoir
QR25DE 2 gal 1-5/8 gal 7.6
50% Genuine NISSAN Long Life Antifreeze/Coolant or equivalent
50% Demineralized or distilled water
VQ35DE 2-1/8 gal 1-3/4 gal 8.2
Manual transmission gear oil 2-3/8 qt 2 qt 2.2 Genuine NISSAN Manual Transmission Fluid (MTF) HQ Multi 75W-85 or API GL-4, Viscosity SAE 75W-85
Automatic transmission fluid Refill to the proper level according to the
instructions in the “Maintenance and do-it-
yourself” section. 4 Speed Genuine NISSAN Matic D ATF (Continental U.S. and Alaska) or Canada NISSAN Automatic Transmission
Fluid.*4
5 Speed Genuine NISSAN Matic K ATF *5
Power steering fluid (PSF) Genuine NISSAN PSF or equivalent.*6
Brake and clutch fluid Genuine NISSAN Super Heavy Duty Brake Fluid*7 or equivalent DOT 3
Multi-purpose grease———NLGINo.2(Lithium Soap base)
Air conditioning system refrigerant— — — HFC-134a (R-134a)*8
Air conditioning system oil— — — NISSAN A/C System Oil Type S or equivalent*8
Windshield washer fluid— — — Genuine NISSAN Windshield Washer Concentrate Cleaner & Antifreeze fluid or equivalent
*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 viscosity number.”
*4: DEXRON™ III/MERCON™ 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 DEXRON™ III/MERCON™ Automatic Transmission Fluid.
*5: Using automatic transmission fluid other than Genuine NISSAN Matic K ATF will cause deterioration in driveability and automatic transmission durability, and may damage the automatic transmission,
which is not covered by the NISSAN new vehicle limited warranty.
*6: For Canada, NISSAN Automatic Transmission Fluid (ATF) , DEXRON™ III/MERCON™, or equivalent ATF may also be used.
*7: Available in mainland USA through your NISSAN dealer.
*8: For further details, see “Air conditioner specification label.”
*9: For further details, see “Changing engine oil.”
CAPACITIES AND RECOMMENDED
FUEL/LUBRICANTS
9-2Technical and consumer information
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FUEL RECOMMENDATION
For 2.5L engine
Use unleaded regular gasoline with an octane
rating of at least 87 AKI (Anti-Knock Index) num-
ber (Research octane number 91) .
For 3.5L
Use unleaded regular gasoline with an octane
rating of at least 87 AKI (Anti-Knock Index) num-
ber (Research octane number 91) .
For improved vehicle performance, NISSAN rec-
ommends 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 the
warranty coverage.
cUnder no circumstances should a
leaded gasoline be used, because this
will damage the three-way catalyst.cDo not use E-85 fuel in your vehicle.
Your vehicle is not designed to run on
E-85 fuel. Using E-85 fuel can damage
the fuel system components and is not
covered by the NISSAN vehicle limited
warranty.
Gasoline specifications
NISSAN recommends using gasoline that meets
the World-Wide Fuel Charter specifications
where it is available. Many of the automobile
manufacturers developed this specification to
improve emission system and vehicle perfor-
mance. Ask your service station manager if the
gasoline meets the World-Wide Fuel Charter
specifications.
Reformulated gasoline
Some fuel suppliers are now producing reformu-
lated gasolines. These gasolines are specially
designed to reduce vehicle emissions. NISSAN
supports efforts towards cleaner air and sug-
gests that you use reformulated gasoline when
available.
Gasoline containing oxygenates
Some fuel suppliers sell gasoline containing oxy-
genates such as ethanol, MTBE and methanol
with or without advertising their presence.
NISSAN does not recommend the use of fuels ofwhich the oxygenate content and the fuel com-
patibility for your NISSAN cannot be readily de-
termined. 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 performance problems
and/or fuel system damage.
cThe fuel should be unleaded and have
an octane rating no lower than that
recommended for unleaded gasoline.
cIf an oxygenate-blend other than
methanol blend is used, it should con-
tain no more than 10% oxygenate.
(MTBE may, however, be added up to
15%.)
c
If a methanol blend is used, it should
contain no more than 5% methanol (me-
thyl alcohol, wood alcohol) . It should
also contain a suitable amount of ap-
propriate cosolvents and corrosion in-
hibitors. If not properly formulated with
appropriate cosolvents and corrosion
inhibitors, such methanol blends may
cause fuel system damage and/or ve-
hicle performance problems. At this
time, sufficient data is not available to
ensure that all methanol blends are
suitable for use in NISSAN vehicles.
Technical and consumer information9-3
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