2003 INFINITI G35 fuel pressure

ously injured if it is misused or mis-
handled. Always stop the engine and
do not smoke or allow open flames or
sparks near the vehicle when refuel-
ing.
O Fuel may be under pressure. Turn the
cap a quarter turn, and wait for any
hissing sound to stop to prevent fuel
from spraying out and possible per-
sonal injury. Then remove the cap.
O Do not attempt to top off the fuel tank after the fuel pump nozzle shuts off
automatically.
Continued refueling may cause fuel
overflow, resulting in fuel spray and
possibly a fire.
O Use only an original equipment type
fuel filler cap as a replacement. It has
a built-in safety valve needed for
proper operation of the fuel system
and emission control system. An in-
correct cap can result in a serious
malfunction and possible injury. It
could also cause the malfunc-
tion indicator lamp to come on.
O Do not fill a portable fuel container in
the vehicle or trailer. Static electricity
can cause an explosion of flammable
liquid, vapor or gas in any vehicle or
trailer. To reduce the risk of serious
injury or death when filling portable
fuel containers:
Ð Always place the container on the
ground when filling.
Ð Do not use electronic devices
while filling.
Ð Keep the pump nozzle in contact
with the container while you are
filling it. Ð Use only approved portable fuel
containers for flammable liquid.
O Never pour fuel into the throttle body
to attempt to start your vehicle.
CAUTION O If fuel is spilled on the car body, flush
it away with water to avoid paint dam-
age.
O Tighten until the fuel filler cap clicks.
Failure to tighten the fuel filler cap
properly may cause the
mal-
function indicator lamp (MIL) to illu-
minate. If the
lamp illuminates
because the fuel filler cap is loose or
missing, tighten or install the cap and
continue to drive the vehicle. The
lamp should turn off after a few
driving trips. If the
lamp does
not turn off after a few driving trips,
have the vehicle inspected by an au-
thorized INFINITI retailer.SPA1563
Pre-driving checks and adjustments
3-15
Z 02.7.29/V35-D/V5.0
X

up easily when operating the heater or air
conditioning system. The air conditioning system in your INFINITI
vehicle is charged with a refrigerant designed
with the environment in mind. This refrigerant
will not harm the earth's ozone layer. How-
ever, special charging equipment and lubricant
are required when servicing your NISSAN air
conditioner. Using improper refrigerants or lu-
bricants will cause severe damage to your air
conditioning system. See ªCapacities and rec-
ommended fuel/lubricantsº in the ª10. Techni-
cal and consumer informationº section for air
conditioning system refrigerant and lubricant
recommendations.
Your INFINITI retailer will be able to service
your environmentally friendly air conditioning
system.
WARNING The air conditioner system contains re-
frigerant under high pressure. To avoid
personal injury, any air conditioner ser-
vice should be done only by an experi-
enced technician with proper equip-
ment. Turn the ignition key to ACC or ON and press
the POWER, FM or AM button to turn on the
radio. If you listen to the radio with the engine
not running, the key should be turned to the
ACC position.
Radio reception is affected by station signal
strength, distance from radio transmitter, build-
ings, bridges, mountains and other external
influences. Intermittent changes in reception
quality normally are caused by these external
influences.
Using a cellular phone in or near the ve-
hicle may influence radio reception quality.
Radio reception Your radio system is equipped with state-of-
the-art electronic circuits to enhance radio
reception. These circuits are designed to ex-
tend reception range, and to enhance the
quality of that reception.
However there are some general characteris-
tics of FM, AM and satellite radio signals that
can affect radio reception quality in a moving
vehicle, even when the finest equipment is
used. These characteristics are completely
normal in a given reception area, and do not
indicate any malfunction in your radio system.
Remember that a moving vehicle is not the
ideal place to listen to a radio. Because of theSERVICING AIR CONDITIONER AUDIO SYSTEM
4-6 Heater, air conditioner and audio systems
Z 02.7.29/V35-D/V5.0
X

During the first 1,200 miles (2,000 km), follow
these recommendations to obtain maximum
engine performance and ensure the future
reliability and economy of your new vehicle.
Failure to follow these recommendations may
result in shortened engine life and reduced
engine performance.
O Avoid driving for long periods at constant
speed, either fast or slow. Do not run the
engine over 4,000 rpm.
O Do not accelerate at full throttle in any gear.
O Avoid quick starts.
O Avoid hard braking as much as possible.
O Do not tow a trailer for the first 500 miles
(800 km). O Accelerate slowly and smoothly. Maintain
cruising speeds with a constant accelerator
position.
O Drive at moderate speeds on the highway.
Driving at high speed will lower fuel
economy.
O Avoid unnecessary stopping and braking.
Maintain a safe distance behind other ve-
hicles.
O Use a proper gear range which suits road
conditions. On level roads, shift into high
gear as soon as possible.
O Avoid unnecessary engine idling. O Keep your engine tuned up.
O Follow the recommended periodic mainte-
nance schedule.
O Keep the tires inflated at the correct pres-
sure. Low pressure will increase tire wear
and waste fuel.
O Keep the front wheels in correct alignment.
Improper alignment will cause not only tire
wear but also lower fuel economy.
O Air conditioner operation lowers fuel
economy. Use the air conditioner only when
necessary.
O When cruising at highway speeds, it is
more economical to use the air conditioner
and leave the windows closed to reduce
drag. SD1001M
BREAK-IN SCHEDULE INCREASING FUEL ECONOMY
Starting and driving
5-17
Z 02.7.29/V35-D/V5.0
X

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.
WARNINGO Park 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 shift lever to
N (Neutral) position. For an automatic
transmission, move the selector lever
to P (Park) position.
O Be sure the ignition key is OFF or
LOCK when performing any parts re-
placement or repairs.
O If you must work with the engine
running, keep your hands, clothing,
hair and tools away from moving
fans, belts and any other moving
parts.
O It is advised to secure or remove any loose clothing and any jewelry, such
as rings, watches, etc. before work-
ing on your vehicle.
O Always wear eye protection when-
ever you work on your vehicle.
O If you must run the engine in an
enclosed space such as a garage, be
sure there is proper ventilation for
exhaust gases to escape.
O 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.
O Keep smoking materials, flame and
sparks away from fuel and the bat-
tery.
O On gasoline engine models with the
Multiport Fuel Injection (MFI) System,
the fuel filter or fuel lines should be
serviced by an INFINITI retailer be-
cause the fuel lines are under high
pressure even when the engine is off. CAUTION O Do not work under the hood while the
engine is hot. Turn off the engine and
wait until it cools down.
O Never connect or disconnect either
the battery or any transistorized com-
ponent connector while the ignition
key is on.
O Never leave any engine or automatic
transmission related component har-
ness connector disconnected while
the ignition key is on.
O Avoid direct contact with used engine
oil and coolant. Improperly disposed
engine oil, engine coolant and/or
other vehicle fluids can hurt the envi-
ronment. Always conform to local
regulations for disposal of vehicle
fluid.
This ª8. Do-it-yourselfº section gives instruc-
tions regarding only those items which are
relatively easy for an owner to perform.
A genuine INFINITI Service Manual is alsoMAINTENANCE PRECAUTIONS
8-2 Do-it-yourself
Z 02.7.29/V35-D/V5.0
X

If maintenance is required, see your INFINITI
retailer for servicing.
The filter element should not be cleaned and
reused. Replace it according to the mainte-
nance intervals. See ªPeriodic maintenance
schedulesº in the ª9. Maintenanceº section for
maintenance intervals. When replacing the
filter, wipe the inside of the air cleaner housing
and the cover with a damp cloth.
WARNINGO 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 flame
if the engine backfires. If it is not
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.
O 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. CAUTION O After wiper blade replacement, return
the wiper arm to its original position.
Otherwise it may be damaged when
the engine hood is opened.
O Make sure the wiper blade contacts
the glass, otherwise the arm may be
damaged from wind pressure.
O Worn windshield wiper blades can
damage the windshield and impair
driver vision.
CLEANING If your windshield is not clear after using the
windshield washer or if a wiper blade chatters
when running, wax or other material may be on
the blade or windshield.
Clean the outside of the windshield with a
washer solution or a mild detergent. Your
windshield is clean if beads do not form when
rinsing with clear water.
Clean the blade by wiping it with a cloth
soaked in a washer solution or a mild deter- gent. Then rinse the blade with clear water. If
your windshield is still not clear after cleaning
the blades and using the wiper, replace the
blades.
AIR CLEANER WINDSHIELD WIPER BLADES
8-16 Do-it-yourself
Z 02.7.29/V35-D/V5.0
X

FUEL RECOMMENDATION:
Sedan models Use unleaded regular gasoline with an octane
rating of at least 87 AKI (Anti-Knock Index)
number (Research octane number 91).
For improved vehicle performance, INFINITI
recommends the use of unleaded premium
gasoline with an octane rating of at least 91
AKI number (Research octane number 96).
Coupe models Use unleaded premium gasoline with an oc-
tane rating of at least 91 AKI (Anti-Knock
Index) number (Research octane number 96).
If premium gasoline is not available, unleaded
regular gasoline with an octane rating of 87
AKI number (Research octane number 91)
may be temporarily used, but only under the
following precautions:
O Have the fuel tank filled only partially with
unleaded regular gasoline, and fill up with
unleaded premium gasoline as soon as
possible.
O Avoid full throttle driving and abrupt accel-
eration.
However, for maximum vehicle perfor-
mance, the use of unleaded premium gaso-
line is recommended. CAUTION Using a fuel other than that specified
could adversely affect the emission con-
trol systems, and may also affect war-
ranty coverage.
Under no circumstances should a
leaded gasoline be used, since this will
damage the three way catalyst.
For additional information, see ªCapacities and
recommended fuel/lubricantsº in the ª10.
Technical and consumer informationº section.
ENGINE OIL RECOMMENDATION: O API Certification Mark
O API grade SG/SH, Energy Conservin gI&II
or API grade SJ or SL, Energy Conserving
O ILSAC grade GF-I, GF-II & GF-III
O SAE 5W-30 viscosity oil is preferred for all
ambient temperatures. SAE 10W-30 vis-
cosity oil may be used for ambient tempera-
tures above 0ÉF (þ18ÉC).
See ªCapacities and recommended fuel/
lubricantsº in the ª10. Technical and consumer
informationº section for engine oil and oil filter
recommendation. COLD TIRE PRESSURES: See tire placard affixed to the inside of the rear
left door opening (Sedan), the driver side
center pillar (Coupe).
NEW VEHICLE BREAK-IN
PROCEDURES
RECOMMENDATION: During the first 1,000 miles (1,600 km) of
vehicle use, follow the recommendations out-
lined in the ªBreak-in scheduleº Information
found in the ª5. Starting and drivingº section of
this Owner's Manual. Follow these recommen-
dations for the future reliability and economy of
your new vehicle.GAS STATION INFORMATION
Z 02.7.29/V35-D/V5.0
X