2000 LEXUS GS400 oil change

6RadioPOOR RECEPTION
Is the condition bad in comparison with other vehicles?
Are there any additional installation parts?
(Sun shade film, telephone antenna, etc.)
Check if there is any scratch and breaking of a wire on
the glass antenna and the defogger pattern.
(visual check. tester)
(See page
BE±190)
Is the contact of the plug jack of the radio OK?
Does the condition get better by using the outer
antenna (such as pillar antenna)?
Is the contact of the antenna terminal on the glass
surface and the defogger terminal?
Is the continuity of the antenna cord OK?
Check the grounding of the antenna, antenna cord,
choke coil, and noise filter. (See page BE±190)
Does the condition get better by replacing
the choke coil?
Does the condition get better by replacing the
antenna cord?Take a measure for contact. An electric wave environment is bad.
Does the condition get better if
removing them?
Influence of additional installation parts.
Repair. (See page BE±108)
Check the radio.
Take a measure for contact.
Grounding failure. Replace the antenna cord.
Replace the choke coil.
Replace the antenna cord. Ye s
No
Exchange the glass.Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s No
No
No
NoNo
No
No
No
NG
OK
Ye s BE±202
± BODY ELECTRICALAUDIO SYSTEM
2503 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)

B00319
Recommended Viscosity (SAE):
TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE °F
°C±20
±29 0
±1820
±740
460
1680
27100
38 10W±30
5W±30 PREFERRED
LU05G±04
B01610
Oil PressureOil Pressure SwitchGauge
Union Bolt
P12478
Adhesive
± LUBRICATION (2JZ±GE)OIL AND FILTER
LU±1
1573 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
OIL AND FILTER
INSPECTION
1. CHECK OIL QUALITY
Check the oil for deterioration, entry of water, discoloring or thin-
ning.
If oil quality is visibly poor, replace the oil.
Oil grade:
API grade SJ, Energy±Conserving or ILSAC multi-
grade engine oil. SAE 5W±30 is the best choice for
your vehicle, for good fuel economy, and good start-
ing in cold weather.
2. CHECK ENGINE OIL LEVEL
After warming up the engine and then 5 minutes after the en-
gine 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) Disconnect the oil pressure switch connector.
(b) Using SST, remove the oil pressure switch.
SST 09816±30010
(c) Install an oil pressure gauge.
4. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
5. CHECK OIL PRESSURE
Oil pressure:
At idle49 kPa (0.5 kgf/cm2, 7 psi) or more
At 3,000 rpm324 kPa (3.3 kgf/cm2, 47 psi) or more
6. REMOVE OIL PRESSURE GAUGE AND REINSTALL
OIL PRESSURE SWITCH
(a) Remove the oil pressure gauge.
(b) Tighten the union bolt.
Torque: 90 N´m (900 kgf´cm, 66 ft´lbf)
(c) Apply adhesive to 2 or 3 threads of the oil pressure switch.
Adhesive:
Part No.08833±00080, THREE BOND 1344,
LOCTITE 242 or equivalent
(d) Using SST, install the oil pressure switch.
SST 09816±30010
Torque: 15 N´m (150 kgf´cm, 11 ft´lbf)
(e) Connect the oil pressure switch connector.
7. START ENGINE AND CHECK FOR LEAKS

± LUBRICATION (2JZ±GE)OIL AND FILTER
LU±3
1575 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(b) Fill with fresh engine oil.
Capacity:
Drain and refill w/ Oil filter change
w/o Oil filter change5.4 liters (5.7 US qts, 4.8 lmp. qts)
5.1 liters (5.4 US qts, 4.5 lmp. qts)
Dry fill6.5 liters (6.9 US qts, 5.7 lmp. qts)
(c) Reinstall the oil filler cap.
4. START ENGINE AND CHECK FOR OIL LEAKS
5. RECHECK ENGINE OIL LEVEL

MA003±06
MA±4
± MAINTENANCEUNDER HOOD
47 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
UNDER HOOD
GENERAL MAINTENANCE
1. GENERAL NOTES

Maintenance items may vary from country to country. Check the owner's manual supplement in which
the maintenance schedule is shown.

Every service item in the periodic maintenance schedule must be performed.

Periodic maintenance service must be performed according to whichever interval in the periodic main-
tenance schedule occurs first, the odometer reading (miles) or the time interval (months).

Maintenance service after the last period should be performed at the same interval as before unless
otherwise noted.

Failure to do even one item an cause the engine to run poorly and increase exhaust emissions.
2. WINDSHIELD WASHER FLUID
Check that there is sufficient fluid in the tank.
3. ENGINE COOLANT LEVEL
Check that the coolant level is between the ºFULLº and ºLOWº lines on the see±through reservoir.
4. RADIATOR AND HOSES
(a) Check that the front of the radiator is clean and not blocked with leaves, dirt or bugs.
(b) Check the hoses for cracks, kinks, rot or loose connections.
5. BATTERY ELECTROLYTE LEVEL
Check that the electrolyte level of all battery cells is between the upper and lower level lines on the case.
6. BRAKE FLUID LEVEL
Check that the brake fluid levels are near the upper level line on the see±through reservoirs.
7. ENGINE DRIVE BELT
Check drive belt for fraying, cracks, wear or oiliness.
8. ENGINE OIL LEVEL
Check the level on the dipstick with the engine turned off.
9. POWER STEERING FLUID LEVEL

Check the level on the dipstick.

The level should be in the ºHOTº or ºCOLDºrange depending on the fluid temperature.
10. AUTOMATIC TRANSMISSION FLUID LEVEL
(a) Park the vehicle on a level surface.
(b) With the engine idling and the parking brake applied, shift the selector into all positions from ºPº to ºLº,
and then shift into ºPº position.
(c) Pull out the dipstick and wipe off the fluid with a clean rag. Re±insert the dipstick and check that the
fluid level is in the HOT range.
(d) Do this check with the fluid at normal driving temperature (70 ± 80°C, 158 ± 176°F).
HINT:
Wait until the engine cools down (approx. 30 min.) before checking the fluid level after extended driving at
high speeds, in hot weather, in heavy traffic or pulling a trailer.
11. EXHAUST SYSTEM
If any change in the sound of the exhaust or smell of the exhaust fumes is noticed, have the cause located
and corrected.

PP0TR±04
PP±20
± PREPARATIONLUBRICATION (2JZ±GE)
72 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
LUBRICANT
ItemCapacityClassification
Engine oil
Dry fill
Drain and refill
w/ Oil filter change
w/o Oil filter change
6.5 liters (6.9 US qts, 5.7 Imp. qts)
5.4 liters (5.7 US qts, 4.8 Imp. qts)
5.1 liters (5.4 US qts, 4.5 Imp. qts)
API grade SJ, Energy±Conserving or ILSAC mul-
tigrade engine oil. SAE 5W±30 is the best choice
for your vehicle, for good fuel economy, and good
starting in cold weather.

F03656
SST
W00112
Cylinder End Stopper
Wooden
Block
W00113
Cylinder End Stopper
SST
F03657
SST
F03658
Vinyl Tape
± STEERINGPOWER STEERING GEAR
SR±53
2223 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
5. INSTALL SPACER AND CYLINDER END STOPPER
(a) Using SST and a hammer, drive in the spacer.
SST 09950±60010 (09951±00280, 09951±00420,
09952±06010), 09950±70010 (09951±07200)
(b) Coat a new O±ring with power steering fluid, and install
it to the stopper.
(c) Using a wooden block and hammer, drive in the stopper
until it is tightly installed.
NOTICE:
Be careful not to damage the O±ring.
(d) Using SST, torque the stopper.
SST 09631±20120
Torque: 59 N´m (600 kgf´cm, 43 ft´lbf)
6. AIR TIGHTNESS TEST
(a) Install SST to the unions of the rack housing.
SST 09631±12071
(b) Apply 53 kPa (400 mmHg, 15.75 in.Hg) of vacuum for
about 30 seconds.
(c) Check that there is no change in the vacuum.
If there is change in the vacuum, check the installation of the oil
seals.
7. INSTALL CONTROL VALVE ASSEMBLY
(a) Coat the teflon rings with power steering fluid.
(b) To prevent oil seal lip damage, wind vinyl tape on the ser-
rated part of the control valve shaft.
(c) Push the valve assembly into the control valve housing.
NOTICE:
Be careful not to damage the teflon rings and oil seal lip.