Infiniti QX4 (R50). Manual — part 504
SMA096D
Changing Engine Oil
NBMA0015
WARNING:
I
Be careful not to burn yourself, as the engine oil is hot.
I
Prolonged and repeated contact with used engine oil may
cause skin cancer; 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.
1.
Warm up engine, and check for oil leakage from engine com-
ponents.
2.
Stop engine and wait for more than 10 minutes.
3.
Remove drain plug and oil filler cap.
4.
Drain oil and refill with new engine oil.
Oil specification and viscosity
I
API grade SG or SH, Energy Conserving I & II or API grade
SJ, Energy Conserving
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API Certification Mark
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ILSAC grade GF-I & GF-II
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See “RECOMMENDED FLUIDS AND LUBRICANTS”, MA-11.
Oil capacity (Approximately):
Unit:
(US qt, Imp qt)
Drain and refill
With oil filter change
5.0 (5-1/4, 4-3/8)
Without oil filter change
4.8 (5-1/8, 4-1/4)
Dry engine (engine overhaul)
6.8 (7-1/4, 6)
CAUTION:
I
Be sure to clean drain plug and install with new washer.
Oil pan drain plug:
: 29 - 39 N·m (3.0 - 4.0 kg-m, 22 - 29 ft-lb)
I
The refill capacity depends on the oil temperature and
drain time. Use these specifications for reference only.
Always use the dipstick to determine when the proper
amount of oil is in the engine.
JMA122D
5.
Warm up engine and check area around drain plug and oil fil-
ter for oil leakage.
6.
Stop engine and wait for more than 10 minutes.
7.
Check oil level.
SMA097D
Changing Oil Filter
NBMA0016
1.
Remove oil filter with Tool.
WARNING:
Be careful not to burn yourself, as the engine and engine oil
are hot.
The filter is a full-flow cartridge type and is provided with a relief
valve.
Refer to LC-7, “Oil Filter”.
ENGINE MAINTENANCE
Changing Engine Oil
MA-18
SMA010
2.
Clean oil filter mounting surface on cylinder block. Coat rubber
seal of new oil filter with engine oil.
SMA702C
3.
Screw in the oil filter until a slight resistance is felt, then tighten
an additional 2/3 turn.
4.
Add engine oil.
Refer to MA-18, “Changing Engine Oil”.
I
Clean excess oil from engine.
SMA098D
Changing Spark Plugs
NBMA0017
1.
Remove engine cover.
2.
Remove throttle wires.
3.
Remove air duct with air cleaner assembly.
4.
Disconnect harness connectors and harness brackets around
ignition coil sides.
5.
Remove throttle body. (Only when removing the No. 4 cylinder
spark plug)
6.
Disconnect ignition coil harness connectors.
7.
Loosen ignition coil fixing bolts and pull out coil from intake
manifold connector.
Ignition coil:
: 8.5 - 10.7 N·m (0.86 - 1.1 kg-m, 75 - 95 in-lb)
SEM294A
8.
Check type and gap of new spark plug.
Spark plug type:
Symbol
Make
Standard type
PLFR5A-11
NGK
Cold type
PLFR6A-11
NGK
Hot type
PLFR4A-11
NGK
Gap (Nominal): 1.1 mm (0.043 in)
Spark plug:
GI
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
ENGINE MAINTENANCE
Changing Oil Filter (Cont’d)
MA-19
: 20 - 29 N·m (2.0 - 3.0 kg-m, 14 - 22 ft-lb)
Use standard type spark plug for normal condition.
The hot type spark plug is suitable when fouling may occur with the
standard type spark plug such as:
I
frequent engine starts
I
low ambient temperatures
The cold type spark plug is suitable when spark knock may occur
with the standard type spark plug such as:
I
extended highway driving
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frequent high engine revolution
SMA773C
I
Do not use a wire brush for cleaning.
I
If plug tip is covered with carbon, spark plug cleaner may
be used.
Cleaner air pressure:
Less than 588 kPa (6 kg/cm
2
, 85 psi)
Cleaning time:
Less than 20 seconds
SMA806C
I
Checking and adjusting plug gap is not required between
change intervals.
SMA099D
Checking EVAP Vapor Lines
NBMA0018
1.
Visually inspect EVAP vapor lines for improper attachment,
cracks, damage, loose connections, chafing or deterioration.
2.
Inspect vacuum relief valve of fuel tank filler cap for clogging,
sticking, etc.
Refer to EC-32, “EVAPORATIVE EMISSION SYSTEM”.
ENGINE MAINTENANCE
Changing Spark Plugs (Cont’d)
MA-20
SMA211A
Checking Exhaust System
NBMA0019
Check
exhaust
pipes,
muffler
and
mounting
for
improper
attachment, leaks, cracks, damage, loose connections, chafing or
deterioration.
SMA121D
Checking A/T Fluid
NBMA0020
1.
Warm up engine.
2.
Check for fluid leakage.
3.
Before driving, fluid level can be checked at fluid temperatures
of 30 to 50°C (86 to 122°F) using “COLD” range on dipstick.
a.
Park vehicle on level surface and set parking brake.
b.
Start engine and move selector lever through each gear posi-
tion. Leave selector lever in “P” position.
c.
Check fluid level with engine idling.
d.
Remove dipstick and note reading. If level is at low side of
either range, and fluid to the charging pipe.
e.
Re-insert dipstick into charging pipe as far as it will go.
f.
Remove dipstick and note reading. If reading is at low side of
range, add fluid to the charging pipe.
Do not overfill.
4.
Drive vehicle for approximately 5 minutes in urban areas.
5.
Re-check fluid level at fluid temperatures of 50 to 80°C (122
to 176°F) using “HOT” range on dipstick.
SMA853B
6.
Check fluid condition.
I
If fluid is very dark or smells burned, refer to AT section for
checking operation of A/T. Flush cooling system after repair of
A/T.
I
If A/T fluid contains frictional material (clutches, bands, etc.),
replace radiator and flush cooler line using cleaning solvent
and compressed air after repair of A/T. Refer to LC-19, “Radia-
tor”.
SMA515C
Changing A/T Fluid
NBMA0021
1.
Warm up A/T fluid.
2.
Stop engine.
3.
Drain A/T fluid from drain plug and refill with new A/T fluid.
Always refill same volume with drained fluid.
Fluid grade:
Nissan Matic “D” (Continental U.S. and Alaska) or
Canada NISSAN Automatic Transmission Fluid.
Refer
to
“RECOMMENDED
FLUIDS
AND
LUBRICANTS”, MA-11.
Fluid capacity (With torque converter):
GI
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
CHASSIS AND BODY MAINTENANCE
Checking Exhaust System
MA-21
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