Infiniti FX35 / FX45. Manual - part 823

LU-4

< SERVICE INFORMATION >

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LUBRICATION SYSTEM

LUBRICATION SYSTEM

Lubrication Circuit

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System Chart

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PBIC1933E

PBIC2071E

ENGINE OIL

LU-5

< SERVICE INFORMATION >

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ENGINE OIL

Inspection

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ENGINE OIL LEVEL

NOTE:
Before starting engine, put vehicle horizontally and check the engine oil level. If engine is already started, stop
it and allow 10 minutes before checking.

1.

Pull out oil level gauge and wipe it clean.

2.

Insert oil level gauge and make sure the engine oil level is within
the range shown in the figure.

3.

If it is out of range, adjust it.

NOTE:
When checking the engine oil level, insert oil level gauge with its
tip aligned with oil level gauge guide on cylinder head. (In figure,
air cleaner case and air duct are removed.)

ENGINE OIL APPEARANCE

• Check engine oil for white turbidity or heavy contamination.
• If engine oil becomes turbid and white, it is highly probable that it is contaminated with engine coolant.

Repair or replace damaged parts.

ENGINE OIL LEAKAGE

Check for engine oil leakage around the following areas:
• Oil pans (lower and upper)
• Oil pan drain plug
• Oil pressure switch
• Oil filter
• Oil filter bracket (AWD models)
• Oil cooler
• Water pump cover
• Chain tensioner cover
• Intake valve timing control cover and intake valve timing control solenoid valve
• Mating surface between cylinder head and rocker cover
• Mating surface between front timing chain case and rear timing chain case
• Mating surface between rear timing chain case and cylinder head
• Mating surface between rear timing chain case and cylinder block
• Mating surface between rear timing chain case and oil pan (upper)
• Mating surface between cylinder block and cylinder head
• Crankshaft oil seals (front and rear)
• Camshaft position sensor (PHASE)

OIL PRESSURE CHECK

PBIC3101E

KBIA1343E

LU-6

< SERVICE INFORMATION >

[VQ35DE]

ENGINE OIL

WARNING:

• Be careful not to get burn yourself, as engine oil may be hot.
• Oil pressure check should be done in “Parking position”.

1.

Check the engine oil level. Refer to "ENGINE OIL LEVEL".

2.

Remove front engine undercover with power tool.

3.

Disconnect harness connector at oil pressure sensor, and
remove oil pressure sensor using deep socket (commercial ser-
vice tool).

CAUTION:

Do not drop or shock oil pressure switch.

4.

Install the oil pressure gauge (SST) and hose (SST).

5.

Start the engine and warm it up to normal operating temperature.

6.

Check the engine oil pressure with engine running under no-load.
NOTE:
When the engine oil temperature is low, the engine oil pressure becomes high.

Engine oil pressure [Engine oil temperature at 80 

°

C (176 

°

F)] 

Unit: kPa (kg/cm

2

, psi)

If difference is extreme, check engine oil passage and oil pump for engine oil leaks.

7.

After the inspections, install oil pressure switch as follows:

a.

Remove old liquid gasket adhering to oil pressure switch and the mating surface.

b.

Apply liquid gasket and tighten oil pressure switch to the specification.
Use Genuine RTV Silicone Sealant or equivalent. Refer to 

GI-44, "Recommended Chemical Prod-

uct and Sealant"

. 

SBIA0452E

SBIA0453E

SLC926

Engine speed

Approximate discharge pressure

Idle speed

More than 98 (1.0, 14)

2,000 rpm

More than 294 (3.0, 43) 

ENGINE OIL

LU-7

< SERVICE INFORMATION >

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After warming up engine, make sure there is no leakage of engine oil with running engine.

Changing Engine Oil

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WARNING:

• Be careful not to get burn yourself, as engine oil may be 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 front engine undercover with power tool.

2.

Warm up the engine, and check for engine oil leakage from engine components. Refer to 

LU-5, "Inspec-

tion"

.

3.

Stop the engine and wait for 10 minutes.

4.

Loosen oil filler cap and then remove drain plug.

5.

Drain engine oil.

6.

Install drain plug with new washer. Refer to 

EM-30, "Component (2WD Models)"

.

CAUTION:

Be sure to clean drain plug and install with new washer.

7.

Refill with new engine oil.
Engine oil specification and viscosity:
Refer to 

MA-9, "Fluids and Lubricants"

.

Engine oil capacity (Approximate):

Unit: 

 (US qt, lmp qt)

CAUTION:

• When filling engine oil, do not pull out oil level gauge.
• The refill capacity depends on the engine oil temperature and drain time. Use these specifica-

tions for reference only.

• Always use oil level gauge to determine the proper amount of engine oil in engine.

8.

Warm up the engine and check area around drain plug and oil filter for engine oil leakage.

9.

Stop the engine and wait for 10 minutes.

10. Check the engine oil level. Refer to 

LU-5, "Inspection"

.

Oil pressure switch:

 : 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)

Drain and refill 

With oil filter change

4.7 (5, 4-1/8)

Without oil filter change

4.4 (4-5/8, 3-7/8)

Dry engine (Overhaul)

5.4 (5-3/4, 4-3/4)