2001 Lexus ES300 Engine

INTRODUCTION
393
CAUTION
When the engine is running, keep hands, clothing,
and tools away from the moving fan and engine drive
belt. (Removing rings, watches, and ties is
advisable.)
 Right after driving, the engine compartment ± the
engine, radiator, exhaust manifold and power
steering fluid reservoir, etc. ± will be hot. So be
careful not to touch them. Oil and other fluids may
also be hot.
 Do not smoke, cause sparks or allow open flames
around fuel or the battery. Their fumes are
flammable.
 Be extremely cautious when working on the battery.
It contains poisonous and corrosive sulfuric acid.
 Do not get under your vehicle with just the body jack
supporting it. Always use automotive jack stands or
other solid supports.
 Use eye protection whenever you work on or under
your vehicle where you may be exposed to flying or
falling material, fluid spray, etc.

INTRODUCTION
394
NOTICE
Remember that battery and ignition cablescarry high currents or voltages. Be careful ofaccidentally causing a short circuit.
Before closing the engine hood, check to seethat you have not forgotten any tools, rags, etc.
Do not drive with the air cleaner removed, or
excessive engine wear could result. Alsobackfiring could cause a fire in the enginecompartment.
Do not overfill automatic transmission fluid, orthe transmission could be damaged.
Be careful not to scratch the glass surface withthe wiper frame.
PARTS AND TOOLS
Here is a list of parts and tools you will need to perform
do±it±yourself maintenance. Remember all Lexus parts
are designed in metric sizes, so your tools must be
metric.
Checking the engine oil level
Parts (if level is low):
 Use API grade SJ, ªEnergy±Conservingº multigrade
engine oil or ILSAC multigrade engine oil. For
recommended oil viscosity, see page 414.
Tools:
 Rag or paper towel
 Funnel (only for adding oil)
Checking the engine coolant level
Parts (if level is low):
ªToyota Long Life Coolantº or equivalent
See ªChecking the engine coolant levelº on page 415
for instructions.
 Demineralized or distilled water
Tools:
 Funnel (only for adding coolant)

INTRODUCTION
397
CAUTION
When jacking, be sure to observe the following to
reduce the possibility of personal injury:
Follow jacking instructions.
 Do not put any part of your body under the vehicle
supported by the jack. Personal injury may occur.
 Do not start or run the engine while your vehicle is
supported by the jack.
 Stop the vehicle on a level firm ground, firmly set the
parking brake and put the transmission in ªPº. Block
the wheels on the opposite side of the jack up point
if necessary.
 Make sure to set the jack properly in the jack point.
Raising the vehicle with jack improperly positioned
will damage the vehicle or may allow the vehicle to fall
off the jack and cause personal injury.
 Never get under the vehicle when the vehicle is
supported by the jack alone; use vehicle support
stands.
 Do not raise the vehicle with someone in the vehicle.
 When raising the vehicle, do not put an object on or
under the jack.

SECTION 6 ± 2
400
SERVICE PROCEDURES AND
SPECIFICATIONS
Engine
Specifications 401. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel 404
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . .
Facts about engine oil consumption 407
. . . . . . . . . . . . .
Used engine oil 409
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the engine oil level 410
. . . . . . . . . . . . . . . . . . .
Checking the engine coolant level 415
. . . . . . . . . . . . . . .
Spark plugs 419
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ENGINE
401
SPECIFICATIONS
± GENERALModel
Type
Bore and stroke
Displacement
Valve clearance (engine cold) Intake
Exhaust
Drive belt tension (with Borroughs drive belt tension
gauge No. BT±33±73F)
1MZ ± FE
6 cylinder V type, 4 cycle, gasoline
87.5
83 mm (3.44
3.27 in.)
2995 cm
3 (182.8 cu. in.)
0.15 ± 0.25 mm (0.006 ± 0.010 in.)
0.25 ± 0.35 mm (0.010 ± 0.014 in.)
115  20 lb.
± LUBRICATION SYSTEM

62L005±1
Temperature range anticipated before next oil change
ENGINE
402Oil capacity
Drain and refillwith filter
without filter
Oil grade
Recommended oil viscosity (SAE):
4.7 L (5.0 qt., 4.1 lmp. qt.)
4.5 L (4.8 qt., 4.0 lmp. qt.)
API SJ, ªEnergy±Conservingº multigrade engine oil or
ILSAC multigrade engine oil
± COOLING SYSTEM
Capacity
Coolant type
8.8 L (9.3 qt., 7.7 lmp. qt.)
ªToyota Long Life Coolantº or equivalent
With ethylene±glycol type coolant for a proper
corrosion protection of aluminum components
Do not use alcohol type antifreeze or plain water
alone.
± FUELFuel type
Octane Rating
Only UNLEADED
87 (Research Octane Number 91) or higher

ENGINE
403
± IGNITION SYSTEM
Spark plug ± Make DENSO NGK
± Gap
SK20R11
IFR6A11
1.1 mm (0.043 in.)
± ELECTRICAL SYSTEM
Battery ± Maintenance type battery Specific gravity reading at 20 C (68F):
Charging rates Quick charge Slow charge
± Non±maintenance battery Open voltage at 20C (68F):
Charging rates
1.260 Fully charged
1.160 Half charged
1.060 Discharged
15A max.
5A max.
12.7V Fully charged
12.3V Half charged
11.9V Discharged
[Voltage that is checked 20 minutes after the key is
removed with all the lights turned off]
5A max.

ENGINE
404
FUEL
Fuel type
Your vehicle must use only unleaded gasoline.
To help prevent gas station mixups, your Lexus has a
smaller fuel tank opening. The special nozzle on pumps
with unleaded fuel will fit it, but the larger standard nozzle
on pumps with leaded gas will not.
At a minimum, the gasoline you use should meet the
specifications of ASTM D4814 in the U.S.A. and CGSB
3.5±M93 in Canada.
NOTICE
Do not use leaded gasoline. Use of leaded gasoline will cause the three±way catalyticconverter to lose its effectiveness and theemission control system to function improperly.Also, this can increase maintenance costs.
Octane rating
Select Octane Rating 87 (Research Octane Number
91) or higher. For improved vehicle performance,
the use of premium unleaded gasoline with an
Octane Rating of 91 (Research Octane Number 96)
or higher is recommended.
Use of unleaded fuel with an Octane Rating or Research Octane Number lower than stated above will cause
persistent heavy knocking. If it is severe, this will lead
to engine damage.
If your engine knocks ...
If you detect heavy knocking even when using the
recommended
fuel, or if you hear steady knocking while
holding a steady speed on level roads, consult your
Lexus dealer.
However, now and then, you may notice light knocking
for a short time while accelerating or driving up hills. This
is no cause for concern.
Gasolines containing detergent additives
Lexus recommends the use of gasoline that contain
detergent additives to avoid build±up of engine
deposits.
For further details, ask your Lexus dealer or a local
gasoline retailer.
Quality gasoline
Automobile manufacturers in U.S., Europe and
Japan have developed a specification for quality
fuel named W orld±Wide Fuel Charter (WWFC) that is
expected to be applied world wide. The WWFC
consists of three categories that depend on
required emission levels. In the U.S., category 3 has
been adopted. The WWFC improves air quality by
providing for better emissions in vehicle fleets, and