Infiniti QX56 (JA60). Manual — part 674
LUBRICATION SYSTEM
LU-7
< FUNCTION DIAGNOSIS >
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A
LU
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Schematic
INFOID:0000000005149024
PBIC0134E
LU-8
< ON-VEHICLE MAINTENANCE >
ENGINE OIL
ON-VEHICLE MAINTENANCE
ENGINE OIL
Inspection
INFOID:0000000005149025
OIL LEVEL
• Before starting the engine make sure the vehicle is parked on a flat
and level surface, then check the oil level. If the engine is already
running, turn it off and allow 10 minutes before checking.
• Check that the oil level is within the low (L) to high (H) range as
indicated on the dipstick.
• If the engine oil level is out of range, add oil as necessary. Refer to
MA-13, "Fluids and Lubricants"
.
OIL APPEARANCE
• Check the engine oil for a white milky appearance or excessive contamination.
• If the engine oil is milky, it is highly probable that it is contaminated with engine coolant. Repair the broken
parts.
OIL LEAKAGE
Check for oil leakage around the following areas:
• Oil pan
• Oil pan drain plug
• Oil pressure switch
• Oil filter
• Oil cooler
• Intake valve timing control cover
• Intake valve timing control solenoid valve
• Front cover
• Mating surface between cylinder block and cylinder head
• Mating surface between cylinder head and rocker cover
• Crankshaft oil seal (front and rear)
OIL PRESSURE CHECK
WARNING:
• Be careful not to burn yourself, as engine oil may be hot.
• Put the selector lever in the Park “P” position.
1. Check the engine oil level. Refer to
.
2. Remove engine front undercover using power tool.
3. Disconnect the oil pressure switch harness connector.
4. Remove the oil pressure switch (A).
SMA954C
WBIA0791E
ENGINE OIL
LU-9
< ON-VEHICLE MAINTENANCE >
C
D
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5. Install Tools.
6. Start the engine and warm it up to normal operating temperature.
7. Check the engine oil pressure with engine running under no-load.
Engine oil pressure [Engine oil temperature at 80
°C (175°F)]
Unit: kPa (kg/cm
2, psi)
CAUTION:
If the difference is extreme, check the oil passages and oil pump for leaks and blockages.
8. After the inspections, install oil pressure switch as follows:
a. Remove old liquid gasket adhering to oil pressure switch and engine.
b. Apply liquid gasket and tighten oil pressure switch to the specification.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-15, "Recommended Chemical Prod-
.
c. After warming up engine, make sure there is no leakage of engine oil with engine running.
Changing Engine Oil
INFOID:0000000005149026
WARNING:
• Be careful not to burn yourself, as the engine oil is hot.
• Prolonged and repeated contact with used engine oil may
cause skin cancer. Try to avoid direct skin contact with used
engine oil. If skin contact is made, wash thoroughly with soap
or hand cleaner as soon as possible.
1. Remove engine front undercover using power tool.
2. Warm up engine, and check for oil leakage from engine compo-
nents. Refer to
3. Stop engine and wait for 10 minutes.
4. Loosen oil filler cap, then remove drain plug.
5. Drain engine oil.
6. Install drain plug with new washer.
CAUTION:
• Be sure to clean drain plug and install with new washer.
7. Refill with new engine oil. Refer to
MA-13, "Fluids and Lubricants"
Engine oil capacity (Approximate):
Tool number
: ST25051001 (J-25695-1)
: ST25052000 (J-25695-2)
WBIA0571E
Engine Speed
Approximate Discharge Oil Pressure
Idle speed
More than 98 (1.0, 14)
2,000 rpm
More than 294 (3.0, 43)
Oil pressure switch torque
: 14.8 N·m (1.5 kg-m, 11 ft-lb)
Oil pan drain plug
: 34.3 N·m (3.5 kg-m, 25 ft-lb)
KBIA2498E
LU-10
< ON-VEHICLE MAINTENANCE >
ENGINE OIL
Unit: (US qt, Imp qt)
CAUTION:
• The refill capacity depends on the engine oil temperature and drain time. Use these specifica-
tions for reference only.
• Always use the oil level gauge to determine when the proper amount of engine oil is in the
engine.
8. Warm up engine and check area around drain plug and oil filter for oil leakage.
9. Stop engine and wait for 10 minutes.
10. Check engine oil level. Refer to
.
Drain and refill
With oil filter change
6.5 (6 7/8, 5-3/4)
Without oil filter change
6.2 (6-1/2, 5-1/2)
Dry engine (engine overhaul)
7.6 (8, 6-3/4)
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