Lexus SC300 / Lexus SC400. Service manual — part 640

PREPARATION

SST (SPECIAL SERVICE TOOLS)

RECOMMENDED TOOLS

EQUIPMENT

Part Name

Note

Oil pressure gauge

Precision straight edge

Oil pump

Torque wrench

LUBRICANT

Item

Capacity

Classification

Item

Liters

US qts

lmp. qts

Classification

Engine oil

API grade SG, Energy–Conserving II

Dry fill

6 0

6 3

5 3

multigrade. Recommended viscosity is

Drain and refill

6.0

6.3

5.3

g

y

as shown, with SAE 5W–30 being the

w/ Oil filter change

4.8

5.1

4.2

preferred engine oil.

w/o Oil filter change

4.5

4.8

5.3

g

SSM (SPECIAL SERVICE MATERIALS)

Part Name

Part No.

Use etc.

Seal packing or equivalent

08826–00080

Oil pump, Oil pan

Adhesive 1344,

Three bond 1344,

08833–00080

Oil pressure switch

Loctite 242 or equivalent

LU–4

–

LUBRICATION SYSTEM

System Circuit, Operation

OIL PRESSURE CHECK

1.

CHECK ENGINE OIL QUALITY
Check the oil for deterioration, entry of water, discoloring or
thinning.
If the quality is poor, replace the oil.
Oil grade: API grade SG, Energy–Conserving II multi-

grade. Recommended viscosity is as shown,
with SAE 5W–30 being the preferred engine
oil.

2.

CHECK ENGINE OIL LEVEL
The oil level should be between the ”L” and ”F” marks on the
dipstick.
If low, check for the leakage and add oil up to ”F” mark.

3.

REMOVE ENGINE UNDER COVER

4. REMOVE OIL PRESSURE SWITCH, AND INSTALL OIL

PRESSURE GAUGE

5.

WARM UP ENGINE
Allow the engine to warm up to normal operating tempera-
ture.

6.

CHECK OIL PRESSURE

Oil pressure:

At idling

29 kPa (0.3 kgf/cm

2

, 4.3 psi)

or more

At 3,000 rpm 294–588 kPa

(3.0–6.0 kg/cm

2

, 43–85 psi)

7.

REMOVE OIL PRESSURE GAUGE AND REINSTALL OIL
PRESSURE SWITCH
Apply adhesive to two or three threads of the oil pressure
switch.

Adhesive: Part No. 08833–00080, THREE BOND 1344,

LOCTITE 242 or equivalent

8.

START ENGINE AND CHECK FOR LEAKS

9.

REINSTALL ENGINE UNDER COVER

–

LUBRICATION SYSTEM

Oil Pressure Check

LU–5

REPLACEMENT OF ENGINE OIL
AND OIL FILTER

CAUTION:

•

Prolonged and repeated contact with mineral oil will

result in the removal of natural fats from the skin, leading

to dryness, irritation and dermatitis. In addition, used

engine oil contains potentially harmful contaminants

which may cause skin cancer.

•

Care should be taken, therefore, when changing engine,

oil to minimize the frequency and length of time your skin

is exposed to used engine oil. Protective clothing and

gloves, that cannot be penetrated by oil, should be worn.

The skin should be thoroughly washed with soap and

water, or use waterless hand cleaner, to remove any used

engine oil. Do not use gasoline, thinners, or solvents.

•

In order to preserve the environment, used oil and used

oil filter must be disposed of only at designated disposal

sites.

1.

DRAIN ENGINE OIL
(a) Remove the oil filler cap.
(b) Remove the oil drain plug, and drain the oil into a

container.

2.

REPLACE OIL FILTER
(a) Using SST, remove the oil filter.
SST 09228–07500

(b) Clean the filter contact surface on the oil filter mounting.
(c) Lubricate the filter rubber gasket with clean engine oil.

LU–6

–

LUBRICATION SYSTEM

Replacement of Engine Oil and Oil Filter

(d) Tighten the oil filter by hand until the rubber gasket

contacts the seat of the filter mounting. Then using SST,
give it an additional 3/4 turn to seat the oil filter.

SST 09228–07500

3.

FILL WITH ENGINE OIL
(a) Clean and install the oil drain plug with a new gasket.

Torque: 25 N

⋅

m (250 kgf

⋅

cm, 18 ft

⋅

lbf)

(b) Fill with new engine oil.

Oil grade: See page

LU–5

Capacity:

Drain and refill

w/ Oil filter change

4.8 liters (5.1 US qts, 4.2 lmp. qts)

w/o Oil filter change

4.5 liters (4.8 US qts, 4.0 lmp.qts)

Dry fill

6.0 liters (6.3 US qts, 5.3 lmp. qts)

(c) Reinstall the oil filler cap.

4.

START ENGINE AND CHECK FOR LEAKS

5.

RECHECK ENGINE OIL LEVEL (See page

LU–5

)

–

LUBRICATION SYSTEM

Replacement of Engine Oil and Oil Filter

LU–7