2004 NISSAN 350Z engine

Aftermarket fuel additivesNISSAN does not recommend the use of any
fuel additives (that is, fuel injector cleaner, oc-
tane booster, intake valve deposit removers,
etc.) which are sold commercially. Many of these
additives intended for gum, varnish or deposit
removal may contain active solvent or similar
ingredients that can be harmful to the fuel sys-
tem and engine.Octane rating tipsIn most parts of North America, you should use
unleaded gasoline with an octane rating of at
least 87 or 91 AKI (Anti-Knock Index) number.
However, you may use unleaded gasoline with
an octane rating as low as 85 AKI number in
these 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 that 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 se-
vere, this can lead to engine damage. If you
detect a persistent heavy spark knock even
when using gasoline of the above stated
octane rating, or if you hear steady sparkknock while holding a steady speed on
level roads, have your dealer correct the
condition. Failure to correct the condition
is misuse of the vehicle, for which NISSAN
is not responsible.
Incorrect ignition timing will result in knocking,
after-run or overheating. This in turn may cause
excessive fuel consumption or damage to the
engine. If any of the above symptoms are en-
countered, have your vehicle checked at a
NISSAN dealer or other competent service fa-
cility.
However, now and then you may notice
light spark knock for a short time while
accelerating or driving up hills. This is no
cause for concern, because you get the
greatest fuel benefit when there is light
spark knock for a short time under heavy
engine load.9-4
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ENGINE OIL AND OIL FILTER
RECOMMENDATION
Selecting the correct oilIt is essential to choose 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 energy. 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 Petro-
leum Institute (API) certification mark on the frontof 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 certifi-
cation mark, use an API grade SG/SH, Energy
ConservingI&IIorAPIgrade SJ or SL, Energy
conserving oil. An oil with a single designation
SG or SH, or in combination with other catego-
ries (for example, SG/CC or SG/CD) may also
be used if one with the API certification mark
cannot be found. An ILSAC grade GF-I, GF-II &
GF-III oil can also be used.
NISSAN recommends mineral based oils. These
oils must however, meet the API quality and SAEviscosity ratings specified for your vehicle.
Oil additivesNISSAN 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 viscosityThe 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 “Rec-
ommended SAE viscosity number” chart (on the
next page) shows the recommended oil viscosi-
ties for the expected ambient temperatures.
Choosing an oil viscosity other than that recom-
mended could cause serious engine damage.Selecting the correct oil filterYour new NISSAN vehicle is equipped with a
high-quality genuine NISSAN oil filter. When
replacing, use a genuine NISSAN oil filter or its
equivalent for the reason described in “Change
intervals”.
STI0367
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Change intervalsThe oil and oil filter change intervals for your
engine are based on the use of the specified
quality oils and filters. Oil and filter other than the
specified quality, or oil and filter change intervals
longer than recommended could reduce engine
life. Damage to engines caused by improper
maintenance or use of incorrect oil and filter
quality and/or viscosity is not covered by the
new NISSAN vehicle warranties.
Your engine was filled with a high quality engine
oil when it was built. You do not have to change
the oil before the first recommended change
interval. Oil and filter change intervals depend
upon how you use your vehicle. Operation under
the following conditions may require more fre-
quent oil and filter changes.

repeated short distance driving at cold out-
side temperatures,

driving in dusty conditions,

extensive idling,

towing a trailer,

stop and go “rush hour” traffic.
RECOMMENDED SAE VISCOSITY
NUMBERSAE 5W-30 viscosity oil is preferred for all
ambient temperatures. SAE 10W-30,
10W-40 viscosity oil may be used if the
ambient temperature is above 0°F (−18°C).
AIR CONDITIONING SYSTEM
REFRIGERANT AND LUBRICANT
RECOMMENDATIONSThe air conditioning system in this NISSAN
vehicle must be charged with the refriger-
ant HFC-134a (R-134a) and the lubricant,
Nissan A/C System Oil Type S or the exact
equivalents.
CAUTION
The use of any other refrigerant or lubri-
cant will cause severe damage to the air
conditioning system and will require the
replacement of all air conditioner sys-
tem components.
The refrigerant HFC-134a (R-134a) in your
NISSAN vehicle will not harm the earth’s ozone
layer. Although this refrigerant does not affect
the earth’s atmosphere, certain governmental
regulations require the recovery and recycling of
any refrigerant during automotive air condition-
ing system service. Your NISSAN dealer has the
trained technicians and equipment needed to
recover and recycle your air conditioning system
refrigerant.
TI1028-C
9-6
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04.1.22/Z33-D/V5.0


ENGINE
Model VQ35DE
Type Gasoline, 4-cycle
Cylinder arrangement 6-cylinder, V-slanted at 60°
Bore x Stroke in (mm) 3.760 x 3.205 (95.5 x 81.4)
Displacement cu in (cm
3) 213.45 (3,498)
Firing order 1-2-3-4-5-6*1
Idle speed rpm
See the emission control label on
the underside of the hood. Ignition timing (B.T.D.C.) degree/rpm
CO percentage at idle speed [No air] %
Spark plugStandard PLFR5A-11
Service option PLFR4A-11, PLFR6A-11
Spark plug gap (Normal) in (mm) 0.043 (1.1)
Camshaft operation Timing chain
The spark ignition system of this vehicle
meets all requirements of the Canadian
Interference-Causing Equipment Regula-
tions.
TI0001-A
SPECIFICATIONS9-8
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04.1.22/Z33-D/V5.0


When planning to travel in another country,
you should first find out if the fuel available is
suitable for your vehicle’s engine.
Using fuel with too low an octane rating may
cause engine damage. All gasoline vehicles
must be operated with unleaded engine gaso-
line. Therefore, avoid taking your vehicle to areas
where appropriate fuel is not available.
When transferring the registration of your
vehicle to another country, state, province
or district,it may be necessary to modify the
vehicle to meet local laws and regulations.
The laws and regulations for motor vehicle emis-
sion control and safety standards vary according
to the country, state, province or district; there-
fore, vehicle specifications may differ.
When any vehicle is to be taken into an-
other country, state, province or district
and registered, its modifications, transpor-
tation, and registration are the responsibil-
ity of the user. NISSAN is not responsible
for any inconvenience that may result.
VEHICLE IDENTIFICATION NUMBER
(VIN) PLATEThe vehicle identification number plate is at-
tached as shown. This number is the identifica-
tion for your vehicle and is used in the vehicle
registration.
VEHICLE IDENTIFICATION NUMBER
(chassis number)The number is stamped as shown.
STI0320
STI0321
WHENTRAVELING OR
REGISTERING YOUR VEHICLE IN
ANOTHER COUNTRYVEHICLE IDENTIFICATION9-10
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ENGINE SERIAL NUMBERThe number is stamped on the engine as shown.
F.M.V.S.S. CERTIFICATION LABELThe Federal Motor Vehicle Safety Standards
(F.M.V.S.S.) certification label is affixed as
shown. This label contains valuable vehicle in-
formation, such as: Gross Vehicle Weight Rat-
ings (GVWR), Gross Axle Weight Rating
(GAWR), month and year of manufacture, Ve-
hicle Identification Number (VIN), etc. Review it
carefully.
EMISSION CONTROL
INFORMATION LABELThe emission control information label is at-
tached as shown.
STI0303
STI0322
STI0323
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WARNING

Properly secure all cargo to help pre-
vent it from sliding or shifting. Do not
place cargo higher than the seat-
backs. In a sudden stop or collision,
unsecured cargo could cause per-
sonal injury.

Do not load your vehicle any heavier
than the GVWR or the maximum front
and rear GAWRs. If you do, parts on
your vehicle can break, or it can
change the way your vehicle handles.
This could result in loss of control
and cause personal injury.

Overloading not only could shorten
the life of your vehicle and the tires,
but also could lead to unsafe vehicle
handling and long braking distance.
This could cause a premature tire
malfunction, which could result in a
serious accident and personal injury.
Malfunctions caused by overloading
are not covered by your warranty.Roadster model:
Do not tow a trailer with your vehicle.
Coupe model:
Your new vehicle was designed to be used
primarily to carry passengers and cargo. Re-
member that towing a trailer places additional
loads on your vehicle’s engine, drive train, steer-
ing, braking and other systems.
ANISSAN Trailer Towing Guide(US only) is
available from a NISSAN dealer. This guide
includes information on trailer towing ability and
the special equipment required for proper tow-
ing.
MAXIMUM LOAD LIMITS
Maximum trailer loadsNever allow the total trailer load to exceed 1,000
lb(454 kg). The total trailer load equals trailer
weight plus its cargo weight. Towing loads
greater than 1,000 lb(454 kg) or using improper
towing equipment could adversely affect vehicle
handling, braking and performance.
The ability of your vehicle to tow a trailer is not
only related to the maximum trailer loads, but
also the places you plan to tow. Tow weights
appropriate for level highway driving may have to
be reduced on very steep grades or in low
traction situations (for example, on slippery boat
ramps).
WARNING
Vehicle damage resulting from im-
proper towing procedures are not cov-
ered by NISSAN warranties. A NISSAN
Trailer Towing Guide (U.S. only) contain-
ing information on trailer towing ability
and the special equipment required may
be obtained from a NISSAN dealer.
TI1011M
TOWING A TRAILER
9-16
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transmission, first apply the parking brake
and block the wheels, and then move the
transmission selector lever into the P (Park)
position. If you move the selector lever to the
P (Park) position before blocking the wheels
and applying the parking brake, the transmis-
sion may get damaged.

When going down a hill, shift into a lower
gear and use the engine braking effect.
When ascending on a long grade, downshift
the transmission to a lower gear and reduce
speed to reduce chances of engine overload-
ing and/or overheating.

If the engine coolant rises to an extremely
high temperature when the air conditioning
system is on, turn off the air conditioner.
Coolant heat can be additionally vented by
opening the windows, switching the fan con-
trol to high and setting the temperature con-
trol to the HOT position.

Trailer towing consumes more fuel than nor-
mal circumstances.

Avoid towing a trailer for the first 500 miles
(800 km).

Have your vehicle serviced more often than at
intervals specified in the recommended main-
tenance schedule.

When making a turn, your trailer wheels willbe closer to the inside of the turn than your
vehicle wheels. To compensate for this, make
a larger than normal turning radius during the
turn.

Crosswinds and rough roads will adversely
affect vehicle/trailer handling, possibly caus-
ing vehicle sway. When being passed by
larger vehicles, be prepared for possible
changes in crosswinds that could affect ve-
hicle handling. If swaying does occur, firmly
grip the steering wheel, steer straight ahead,
and immediately (but gradually) reduce ve-
hicle speed. This combination will help stabi-
lize the vehicle. Never increase speed.

Be careful when passing other vehicles.
Passing while towing a trailer requires con-
siderably more distance than normal passing.
Remember the length of the trailer must also
pass the other vehicle before you can safely
change lanes.

To maintain engine braking efficiency and
electrical charging performance, do not use
6th gear (manual transmission) or 5th posi-
tion (automatic transmission).

Avoid holding the brake pedal down too long
or too frequently. This could cause the brakes
to overheat, resulting in reduced braking ef-
ficiency.When towing a trailer, change transmis-
sion oil more frequently. For additional
information, see the “8. Maintenance and
do-it-yourself” section.
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