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ENGINE
315
To ensure excellent lubrication performance for your engine,
the “Toyota Genuine Motor Oil” range is available, which has
been specifically tested and approved for all Lexus engines.
Please contact your Lexus dealer for further details of the
“Toyota Genuine Motor Oil” range.
CHECKING THE ENGINE COOLANT
LEVEL
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 the “F” and “L” lines on the reservoir. If the level
is low, add ethylene glycol type coolant for a proper
corrosion protection of aluminum components.
The coolant level in the reservoir will vary with engine
temperature. However, if the level is on or below the “L” line,
add coolant. Bring the level up to the “F” line.
Always use ethylene −glycol type coolant for a proper corrosion
protection of aluminum components. See information in the
next column.
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ENGINE
316If the coolant level drops within a short time after replenishing,
there
may be a leak in the system. V isually 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. Your coolant must contain ethylene −glycol type
coolant for a proper corrosion protection of your engine that
contains aluminum components. We have used “Toyota
Genuine Long Life Coolant” in your Lexus vehicle. In order to
avoid technical problems, we strongly recommend using
“Toyota Genuine Long Life Coolant” or equivalent.
In addition to preventing freezing and subsequent damage to
the engine, this type of coolant will also prevent corrosion.
Further supplemental inhibitors or additives are neither
needed nor recommended.
Read the coolant container for information on freeze
protection. Follow the manufacturer’s directions for how much
to mix with plain water (preferably demineralized water or
distilled water). The total capacity of the cooling system is
given on page 307. We recommend to use 50% solution for your Lexus, to provide
protection
down to about −35C (− 31F). When it is extremely
cold, to provide protection down to about −50C (−58F), 60%
solution is recommended. Do not use more than 70% solution
for better coolant performance.
NOTICE
Do not use alcohol type antifreeze or plain water alone.
The engine cooling system is integral to maximizing
performance of your Lexus vehicle. In line with this, it is
strongly recommended that you use “Toyota Genuine Long
Life Coolant” for protecting the system, as it is an
ethylene− glycol based premium antifreeze coolant with
excellent corrosion protection properties that has been
specifically formulated for use in Lexus vehicles.
Please contact your Lexus dealer for further details of the
“Toyota Genuine Long Life Coolant” range.
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ENGINE
317
CHECKING THE RADIATOR ANDCONDENSER
If either of the above parts are extremely dirty or you are not
sure of their condition, take your vehicle to Lexus dealer.
CAUTION
To prevent burning yourself, be careful not to touch the
radiator, condenser or intercooler when the engine is
hot.
NOTICE
To prevent damage to the radiator and condenser, do
not perform the work by yourself.
SPARK PLUGS
Your engine is fitted with iridium tipped spark plugs.
NOTICE
Use only iridium tipped spark plugs and do not adjust
gaps for your engine performance and smooth
drivability.
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SECTION 6 – 3
318
SERVICE PROCEDURES AND
SPECIFICATIONS
Chassis
Specifications319
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . .
Checking brake fluid 322
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
.
Checking power steering fluid 323
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking tire pressure 324
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rotating tires 326
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . .
Checking and replacing tires 326
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing snow tires and chains 329
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing wheels 330
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . .
Aluminum wheel precautions 331
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Suspension and chassis 332
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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