2005 NISSAN 350Z engine

When performing any inspection or maintenance
work on your vehicle, always take care to prevent
serious accidental injury to yourself or damage to
the vehicle. The following are general precau-
tions which should be closely observed.
WARNING

Park the vehicle on a level surface,
apply the parking brake securely and
block the wheels to prevent the ve-
hicle from moving. For manual trans-
mission models, move the shift lever
to N(Neutral) position. For automatic
transmission models, move the se-
lector lever to P (Park).

Be sure the ignition key is in the OFF
or LOCK position when performing
any parts replacement or repairs.

Never connect or disconnect the bat-
tery or any transistorized component
while the ignition switch is in the ON
position.

Never leave the engine or automatic
transmission related component har-
nesses disconnected while the igni-tion switch is in the ONposition.

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.

It is advisable to secure or remove
any loose clothing and remove any
jewelry, such as rings, watches, etc.
before working on your vehicle.

Always wear eye protection when-
ever you work on your vehicle.

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.

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.

Keep smoking materials, flame and
sparks away from the fuel tank and
battery.
On gasoline engine models with the
multiport fuel injection (MFI) system,
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

Do not work under the hood while
the engine is hot. Turn the engine off
and wait until it cools down.

Avoid contact with used engine oil
and coolant. Improperly disposed en-
gine oil, engine coolant and/or other
vehicle fluids can damage the envi-
ronment. Always conform to local
regulations for disposal of vehicle
fluid.
This “8. Maintenance and do-it-yourself” section
gives instructions regarding only those items
which are relatively easy for an owner to perform.
A genuine NISSAN Service Manual is also avail-
able. See “Owner’s Manual/Service Manual or-
MAINTENANCE PRECAUTIONS
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1. Fuse/fusible link holder
2. Battery
3. Engine oil filler cap
4. Brake fluid reservoir
5. Clutch fluid reservoir (M/T models)
6. Windshield washer fluid reservoir
7. Power steering fluid reservoir
8. Engine coolant reservoir
9. Radiator filler cap
10. Engine oil dipstick
11. Air cleaner
Do not tamper with the strut tower bar
adjustment
A. The strut tower bar has
been adjusted to the most suitable posi-
tion at the factory.CAUTION
Tampering with the strut tower bar ad-
justment may cause a noise while driv-
ing or damage to the hood or engine.
SDI1519
ENGINE COMPARTMENT CHECK
LOCATIONS
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The engine cooling system is filled at the factory
with a high-quality, year-round, anti-freeze cool-
ant solution. The anti-freeze solution contains
rust and corrosion inhibitors, therefore additional
cooling system additives are not necessary.
WARNING

Never remove the radiator cap when
the engine is hot. Wait until the en-
gine and radiator cool down. Serious
burns could be caused by high pres-
sure fluid escaping from the radiator.

See “If your vehicle overheats” in the
“6. In case of emergency” section of
this manual.

The radiator is equipped with a pres-
sure type radiator cap. To prevent
engine damage, use only a genuine
NISSAN radiator cap.
Outside temperature
down to
Anti-
freezeDeminer-
alized
water/
distilled
water °C °F
−35 −30 50% 50%
CAUTION
When adding or replacing coolant, be
sure to use only a Genuine NISSAN
Long Life Antifreeze/Coolant (green) or
equivalent with the proper mixture ratio
of 50% anti-freeze and 50% demineral-
ized water/distilled water. The use of
other types of coolant solutions may
damage your engine cooling system.
CHECKING ENGINE COOLANT
LEVELCheck the coolant level in the reservoir tank
when the engine is cold. If the coolant level is
below MIN, add coolant up to the MAX level. If
the reservoir tank is empty, check the coolant
level in the radiatorwhen the engine is cold.If
there is insufficient coolant in the radiator, fill the
radiator with coolant up to the filler opening and
also add it to the reservoir tank up to the MAX
level.
If the engine cooling system frequently
requires coolant, have it checked by a
NISSAN dealer.
SDI1445
ENGINE COOLING SYSTEM8-8
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CHANGING ENGINE COOLANT
Major cooling system repairs should be per-
formed by a NISSAN dealer. The service
procedures can be found in the appropriate
NISSAN Service Manual.
Improper servicing can result in reduced
heater performance and engine overheating.
WARNING

To avoid being scalded, never change
the coolant when the engine is hot.

Never remove the radiator cap when
the engine is hot. Serious burns
could be caused by high pressure
fluid escaping from the radiator.

Avoid direct skin contact with used
coolant. If skin contact is made, wash
thoroughly with soap or hand cleaner
as soon as possible.

Keep coolant out of reach of children
and pets.
1. Open radiator drain plug at the bottom of
radiator, and remove radiator filler cap.

Be careful not to allow coolant to con-
tact drive belts.

Waste coolant must be disposed of
properly. Check your local regulations.
2. Close the radiator drain plug securely after
the coolant is drained.3. Fill the radiator slowly with the proper mixture
of anti-freeze solution and demineralized
water/distilled water. Fill the reservoir tank up
to the MAX level. Then install the radiator filler
cap.
4. Start the engine and warm it up until it
reaches normal operating temperature. Then
race the engine 2 or 3 times under no load.
Watch the engine coolant temperature
gauge for signs of overheating.
5. Stop the engine. After it completely cools
down, refill the radiator up to the filler open-
ing. Fill the reservoir tank up to the MAX level.
Check the drain plug for any sign of leakage.
6. Recheck the coolant level after the vehicle
has been driven for a day.
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CHECKING ENGINE OIL LEVEL1. Park the vehicle on a level surface and apply
parking brake.
2. Run the engine until it reaches operating
temperature.
3. Turn off the engine.Wait more than 10
minutes for the oil to drain back into the
oil pan.
4. Remove the dipstick and wipe it clean. Rein-
sert it all the way.5. Remove the dipstick again and check the oil
level. It should be between the H and L marks
B. If the oil level is below the L mark
A,
remove the oil filler cap and pour recom-
mended oil through the opening.Do not
overfill
C.
6. Recheck oil level with dipstick.
It is normal to add some oil between oil
maintenance intervals or during the
break-in period, depending on the severity
of operating conditions.
CAUTION
Oil level should be checked regularly.
Operating the engine with insufficient
amount of oil can damage the engine,
and such damage is not covered by
warranty.CHANGING ENGINE OIL AND
FILTERChange the engine oil and filter according to the
maintenance log shown in the Service and Main-
tenance Guide.Vehicle set-up1. Park the vehicle on a level surface and apply
the parking brake.
2. Run the engine until it reaches operating
temperature.
3. Turn the engine off and wait more than 10
minutes.
4. Raise and support the vehicle using a suit-
able floor jack and safety jack stands.

Place the safety jack stands under the vehicle
jack-up points.
SDI1386C
SDI1781
ENGINE OIL8-10
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A suitable adapter should be attached to the
jack stand saddle.
5. Remove the plastic engine undercover.
a. Remove the small plastic clip at the center
point of the undercover.
b. Then remove the other bolts that hold the
undercover in place.
CAUTION
Make sure the correct lifting and sup-
port points are used to avoid vehicle
damage.
Engine oil and filter1. Place a large drain pan under the drain plug
1.
2. Remove the oil filler cap.
3. Remove the drain plug with a wrench and
completely drain the oil.
CAUTION
Be careful not to burn yourself, as the
engine oil is hot.

Waste oil must be disposed of properly.
Check your local regulations.
4. Loosen the oil filter with an oil filter wrench
2. Remove the oil filter by turning it by hand.
5. Wipe the engine oil filter mounting surface
with a clean rag.
Be sure to remove any old rubber gas-
ket remaining on the mounting surface
of the engine.
6. Coat the gasket on the new filter with clean
engine oil.
7. Screw in the oil filter clockwise until a slight
resistance is felt, then tighten additionally
more than 2/3 turn.
Oil filter tightening torque:
11 to 15 ft-lb
(14.7 to 20.5 N⋅m)
8. Clean and re-install the drain plug and a new
washer. Securely tighten the drain plug with a
wrench.
Drain plug tightening torque:
22 to 29 ft-lb
(29 to 39 N⋅m)
Do not use excessive force.
9. Refill engine with recommended oil and in-
stall the cap securely.
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CAUTION
The dipstick must be inserted in place to
prevent oil spillage from the dipstick
hole while filling the engine with oil.
See “Capacities and recommended fuel/
lubricants” in the “9. Technical and consumer
information” section for drain and refill capac-
ity. The drain and refill capacity depends on
the oil temperature and drain time. Use these
specifications for reference only. Always use
the dipstick to determine the proper amount
of oil in the engine.
10. Start the engine and check for leakage
around the drain plug and the oil filter.
Correct as required.
11. Turn the engine off and wait more than 10
minutes. Check the oil level with the dip-
stick. Add engine oil if necessary.After the operation1. Install the engine undercover into position as
outlined in the following steps.
a. Pull the center of the small plastic clip out.
b. Hold the engine undercover into position.
c. Insert the clip through the undercover into thehole in the frame, then push the center of the
clip in to lock the clip in place.
d. Install the other bolts that hold the under-
cover in place. Be careful not to strip the
bolts or over-tighten them.
2. Lower the vehicle carefully to the ground.
3. Dispose of waste oil and filter properly.
WARNING

Prolonged and repeated contact with
used engine oil may cause skin can-
cer.

Try to avoid direct skin contact with
used oil. If skin contact is made,
wash thoroughly with soap or hand
cleaner as soon as possible.

Keep used engine oil out of reach of
children.When checking or replacement is required, we
recommend a NISSAN dealer for servicing.
CAUTION

Use only Genuine Nissan Matic J ATF.
Do not mix with other fluids.

Using automatic transmission fluid
other than Genuine Nissan Matic J
ATF will cause deterioration in drive-
ability and automatic transmission
durability, and may damage the auto-
matic transmission, which is not cov-
ered by the NISSAN new vehicle lim-
ited warranty.
The specified automatic transmission fluid is
also described on caution labels located in the
engine compartment.AUTOMATIC TRANSMISSION
FLUID
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WARNING
Anti-freeze is poisonous and should be
stored carefully in marked containers
out of the reach of children.
CAUTION
Do not substitute engine anti-freeze
coolant for window washer solution.
This may result in damage to the paint.
Keep the battery surface clean and dry. Any
corrosion should be washed off with a solu-
tion of baking soda and water.

Make certain the terminal connections are
clean and securely tightened.

If the vehicle is not to be used for 30 days or
longer, disconnect the (—) negative battery
terminal to prevent discharging it.
CAUTION
When the battery cable is removed from
the battery terminal, do not close either
of the front doors. The automatic win-
dow adjusting function will not work,
and the side roof panel/top side rail
may be damaged by doing so.
To disconnect the negative (−) battery ter-
minal, perform the procedure in the follow-
ing order. Otherwise, the window and the
side roof panel/top side rail may contact
and be damaged.
1. Close the windows.
2. Open the hood.3. Close and lock all the doors using the
key or keyfob.
4. Disconnect the negative (−) battery ter-
minal.
5. Securely close the hood.
To connect the negative (−) battery termi-
nal, perform the procedure in the following
order. Otherwise, the window and the side
roof panel may contact and be damaged.
1. Unlock (using the key) and open the
driver side door. Do not close the door.
2. Open the hood.
3. Connect the negative (−) battery termi-
nal. Then close the hood.
4. Fully open the driver side door window.
5. Close the driver side door and the win-
dow.
WARNING

Do not expose the battery to flames
or electrical sparks. Hydrogen gas,
generated by battery fluid, is explo-
sive. Do not allow battery fluid to
contact your skin, eyes, fabrics, or
BATTERY
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