engine Lexus IS300 2005 Basic Functions / LEXUS 2005 IS300 OWNER'S MANUAL (OM53489U)

ENGINE
335
NOTICE
Be careful not to spill engine oil on the vehiclecomponents.
Avoid overfilling, or the engine could be damaged.Check the oil level on the dipstick once again afteradding the oil.
Engine oil selection
ªToyota Genuine Motor Oilº is used in your Lexus vehicle. Use
Lexus approved ªToyota Genuine Motor Oilº or equivalent to
satisfy the following grade and viscosity.
Oil grade:
API grade SL ªEnergy±Conservingº or ILSAC multigrade
engine oil.
Recommended viscosity (SAE):
SOIL14
Outside temperature
SAE 5W±30 is the best choice for good fuel economy, and
good starting in cold weather.
If SAE 5W±30 oil is not available, SAE 10W±30 oil may be
used. However, it should be replaced with SAE 5W±30 at
the next oil change.
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ENGINE
336
Oil identification marks
SOIL11

API Service Symbol
ILSAC Certification Mark
Either or both API registered marks are added to some oil
containers to help you select the oil you should use.
The API Service Symbol is located anywhere on the outside
of the container.
The top portion of the label shows the oil quality by API
(American Petroleum Institute) designation such as SL. The
center portion of the label shows the SAE viscosity grade
such as SAE 5W±30. ªEnergy±Conservingº, shown in the
lower portion, indicates that the oil has fuel±saving capabilities.
 The ILSAC (International Lubricant Standardization and
Approval Committee) Certification Mark is displayed on the front of the container. To ensure excellent lubrication performance for your engine,
ªToyota Genuine Motor Oilº is available, which has been
specifically tested and approved for all Lexus engines.
Please contact your Lexus dealer for further details about
ªToyota Genuine Motor Oilº.
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ENGINE
337
CHECKING THE ENGINE COOLANTLEVEL
SV62006

1Reservoir cap 2Upper line 3Lower line
Look at the see±through coolant reservoir when the
engine is cold. The coolant level is satisfactory if it is
between theªFULLº and ªLº lines on the reservoir. If the
level is low, add the coolant. (For the coolant type, see
ªCoolant type selectionº described below.)
The coolant level in the reservoir will vary with engine
temperature. However, if the level is on or below the ªLº line,
add coolant. Bring the level up to the ªFULLº line.
If the coolant level drops within a short time after replenishing,
there may be a leak in the system. Visually check the radiator,
hoses, engine coolant filler cap, radiator cap and drain cock
and water pump. If you can find no leak, have your Lexus dealer test the cap
pressure and check for leaks in the cooling system.
CAUTION
To prevent burning yourself, do not remove the radiator
cap when the engine is hot.
Coolant type selection
Use of improper coolants may damage your engine cooling
system.
Only use ªToyota Super Long Life Coolantº or similar high
quality ethylene glycol based non±silicate, non±amine,
non±nitrite, and non±borate coolant with long±life hybrid
organic acid technology.
(Coolant with long±life hybrid organic
acid technology is a combination of low phosphates and
organic acids.)
For the U.S.A.ЪToyota Super Long Life Coolantº is a mixture
of 50% coolant and 50% deionized water. This coolant
provides protection down to about ±35 C (±31F).
For the CanadaЪToyota Super Long Life Coolantº is a
mixture of 55% coolant and 45% deionized water. This coolant
provides protection down to about ±42 C (±44F).
NOTICE
Do not use plain water alone.
04 06.30

ENGINE
338Lexus recommends ªToyota Super Long Life Coolantº, which
has been tested to ensure that it will not cause corrosion nor
result in malfunction of your engine coolant system with proper
usage. ªToyota Super Long Life Coolantº is formulated with
long±life hybrid organic acid technology and has been
specifically designed to avoid engine cooling system
malfunction on Lexus vehicles.
Please contact your Lexus dealer for further details.
CHECKING THE RADIATOR AND
CONDENSER
If either of the above parts are extremely dirty or you are not
sure of their condition, take you vehicle to a Lexus dealer.
CAUTION
To prevent burning yourself, be careful not to touch the
radiator or condenser when the engine is hot.
NOTICE
To prevent damage to the radiator and condenser, do
not perform the work by yourself.
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ENGINE
339
SPARK PLUGS
SV62007a
Your engine is fitted with designated iridium±tipped spark
plugs.
NOTICE
Use only designated iridium±tipped spark plugs and donot adjust gaps for your engine performance andsmooth drivability.
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ENGINE
340
04 06.30

CHASSIS
343
± CLUTCH
Pedal freeplay
5 ± 15 mm (0.2 ± 0.6 in.)
Fluid typeSAE J1703 or FMVSS No. 116 DOT 3
± BRAKESPedal clearance *
199 mm (3.9 in.) Min.
Pedal free play1 ± 6 mm (0.04 ±0.24 in.)
Brake pad wear limit1.0 mm (0.04 in.)
Parking brake lining wear limit1.0 mm (0.04 in.)
Parking brake adjustment *25 ± 8 clicks
Fluid typeSAE J1703 or FMVSS No. 116 DOT 3
*1:Minimum pedal clearance when depressed with the force of 490 N (49 kgf\
, 110 lbf) with the engine running
*
2:Parking brake adjustment when pulled with the force of 196 N (20 kgf, \
44 lbf)
± STEERING Free play
Less than 30 mm (1.2 in.)
Power steering fluidAutomatic transmission fluid DEXRONII or III
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CHASSIS
350
CHECKING POWER STEERINGFLUID
SV63002
Check the fluid level on the dipstick. If necessary, add
automatic transmission fluid DEXRONII or III.
If the vehicle has been driven around 80 km/h (50 mph) for 20
minutes (a little more in frigid temperatures), the fluid is hot
(60 C ± 80C or 140F ± 175F). You may also check the level
when the fluid is cold (about room temperature, 10 C ± 30C
or 50F ± 85F) if the engine has not been run for about five
hours.
SV63003

1If cold O.K. 2If hot O.K. 3Add fluid
1. Clean all dirt off the reservoir.
2. Remove the reservoir cap by turning it counterclockwise
and wipe the dipstick clean.
3. Reinstall the reservoir cap.
4. Remove the reservoir cap again and look at the fluid level.
If the fluid is cold, the level should be in the ªCOLDº range on
the dipstick. Similarly, if it is hot, the fluid level should be in the
ªHOTº range. If the level is at the low side of either range, add
automatic transmission fluid DEXRON
II or III to bring the
level within the range.
5. After replacing the reservoir cap, visually check the
steering box case, vane pump and hose connections for leaks
or damage.
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CHASSIS
362
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation
pressuretire pressure when the vehicle has been parked for at least 3 hours or m\
ore, or it
has not been driven more than 1.5 km or 1 mile under that condition.
Maximum inflation
pressurethe maximum cold inflation pressure to which a tire may be inflated and \
it is shown
on the sidewall of the tire
Recommended inflation
pressurecold tire inflation pressure recommended by a manufacturer
Accessory weight
the combined weight (in excess of those standard items which may be rep\
laced) of
automatic transmission, power steering, power brakes, power windows, pow\
er
seats, radio, and heater, to the extent that these items are available as
factory±installed equipment (whether installed or not)
Curb weight
the weight of a motor vehicle with standard equipment including the maxi\
mum
capacity of fuel, oil, and coolant, and, if so equipped, air conditionin\
g and
additional weight optional engine
Maximum loaded vehicle
weight
the sum of Ð
(a) curb weight;
(b) accessory weight;
(c) vehicle capacity weight; and
(d) production options weight
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ELECTRICAL COMPONENTS
376
SPECIFICATIONS
± FUSE LOCATION
SV64029

1Engine compartment
2Passenger's side kick panel
3Driver's side kick panel
± FUSES
SV64022

Driver's side kick panel
SV64023

Passenger's side kick panel
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