Lexus RX300 (MCU15). Service manual - part 463

B07817

Recommended Viscosity (SAE)

20W–50

15W–40

10W–30

5W–30 PREFERRED

100

38

27

16

4

–7

–18

–29

°C

80

60

40

20

0

–20

°F

TEMPERATURE RANGE ANTICIPATED
BEFORE NEXT OIL CHANGE

B04131

SST

LU08K–02

B04132

Oil Pressure 
Gauge

–

LUBRICATION

OIL AND FILTER

LU–1

LEXUS RX300   (RM785E)

OIL AND FILTER

INSPECTION

1.

CHECK ENGINE OIL QUALITY

Check the oil for deterioration, entry of water, discoloring or thin-
ning.
If the quality is visibly poor, replace the oil.

Oil grade:
API grade SH, Energy–Conserving II or SJ, Energy–
Conserving or ILSAC multigrade engine oil. Recom-
mended viscosity is as shown in the illustration.

2.

CHECK ENGINE OIL LEVEL

After warm up the engine and then 5 minutes after the engine
stop, oil level should be between the low level and full level
marks of the dipstick.
If low, check for leakage and add oil up to the full level mark.
NOTICE:
Do not fill with engine oil above the full level mark.
3.

REMOVE OIL PRESSURE SWITCH, AND INSTALL
OIL PRESSURE GAUGE

(a)

Using SST, remove the oil pressure switch.
SST

09816–30010

(b)

Install the oil pressure gauge.

4.

WARM UP ENGINE

Allow the engine to warm up to normal operating temperature.
5.

CHECK OIL PRESSURE
Oil pressure:

At idle

29 kPa (0.3 kgf/cm

2

, 4.3 psi) or more

At 3,000 rpm

294 – 539 kPa (3.0 – 5.5 kgf/cm

2

, 43 – 78 psi)

P12478

Adhesive

LU–2

–

LUBRICATION

OIL AND FILTER

LEXUS RX300   (RM785E)

6.

REMOVE OIL PRESSURE GAUGE AND REINSTALL
OIL PRESSURE SWITCH

(a)

Remove the oil pressure gauge.

(b)

Apply adhesive to 2 or 3 threads of the oil pressure switch.
Adhesive: Part No. 08833–00080, THREE BOND 1344,
LOCTITE 242 or equivalent

(c)

Using SST, install the oil pressure switch.
SST

09816–30010

Torque: 13 N·m (130 kgf·cm, 9 ft·lbf)

7.

START ENGINE AND CHECK FOR LEAKS

LU04F–02

B04133

B04399

SST

B04400

SST

3/4 Turn

Additional

–

LUBRICATION

OIL AND FILTER

LU–3

LEXUS RX300   (RM785E)

REPLACEMENT

CAUTION:

S

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 addi-
tion, used engine oil contains potentially harmful
contaminants which may cause skin cancer.

S

Exercise caution in order to minimize the length and
frequency of contact of your skin to used oil. Wear
protective clothing and gloves. Wash your skin thor-
oughly with soap and water, or use water–less hand
cleaner, to remove any used engine oil. Do not use
gasoline, thinners, or solvents.

S

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 contain-
er.

2.

REMOVE ENGINE UNDER COVER

3.

REPLACE OIL FILTER

(a)

Using SST, remove the oil filter.
SST

09228–07501

(b)

Check and clean the oil filter installation surface.

(c)

Apply clean engine oil to the gasket of a new oil filter.

(d)

Lightly screw the oil filter into place, and tighten it until the
gasket contacts the seat.

(e)

Using SST, tighten it an additional 3/4 turn.
SST

09228–07501

LU–4

–

LUBRICATION

OIL AND FILTER

LEXUS RX300   (RM785E)

4.

REFILL WITH ENGINE OIL

(a)

Clean and install the oil drain plug with a new gasket.
Torque: 45 N·m (460 kgf·cm, 33 ft·lbf)

(b)

Fill with fresh engine oil.
Capacity:

Drain and refill

  W/ Oil filter change

  W/o Oil filter change

Dry fill

4.7 liters (5.0 US qts, 4.1 lmp. qts)

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

5.2 liters (5.5 US qts, 4.6 lmp. qts)

(c)

Install the oil filler cap.

5.

START ENGINE AND CHECK FOR OIL LEAKS

6.

RECHECK ENGINE OIL LEVEL

7.

REINSTALL ENGINE UNDER COVER