check oil Lexus IS F 2008 Scheduled Maintenace Guide / LEXUS 2008 IS F OWNER'S MANUAL (OM53714U)

113
2-1. Driving procedures
2
When driving
NOTICE
■When encountering flooded roads
Do not drive on a road that has flooded after heavy rain etc. Doing so may cause the
following serious damage to the vehicle.
●Engine stalling
●Short in electrical components
●Engine damage caused by water immersion
In the event that you drive on a flooded road and the vehicle is flooded, be sure to
have your Lexus dealer check the following.
●Brake function
●Changes in quantity and quality of oil an d fluid used for the engine, transmission,
differential, etc.
●Lubricant condition for the propeller shaft, bearings and suspension joints (where
possible) and the function of all joints, bearings, etc.

180
2-5. Driving information
Winter driving tips
Carry out the necessary preparations and inspections before driving the
vehicle in winter. Always drive the vehicle in a manner appropriate to the
prevailing weather conditions.
■ Pre-winter preparations
●Use fluids that are appropria te to the prevailing outside tempera-
tures.
• Engine oil
• Engine coolant
• Washer fluid
● Have a service technician inspect the level and specific gravity of
battery electrolyte.
● Have the vehicle fitted with four snow tires.
Ensure that all tires are the specified size and the same brand.
■Before driving the vehicle
Perform the following according to the driving conditions.
● Do not try to forcibly open a w indow or move a wiper that is fro-
zen. Pour warm water over the frozen area to melt the ice. Wipe
away the water immediately to prevent it from freezing.
● To ensure proper operation of the climate control system fan,
remove any snow that has accumu lated on the air inlet vents in
front of the windshield.
● Remove any ice that has accumul ated on the vehicle chassis.
● Periodically check for and remove any excess ice or snow that
may have accumulated in the wheel well or on the brakes.

272
4-2. Maintenance
General maintenance
Engine compartment
ItemsCheck points
BatteryMaintenance-free. (P. 2 9 2 )
Brake fluidAt the correct level? ( P. 2 9 0 )
Engine coolantAt the correct level? ( P. 2 8 8 )
Engine oilAt the correct level? ( P. 2 8 4 )
Exhaust systemNo fumes or strange sounds?
Radiator/condenser/hosesNot blocked with foreign matter?
( P. 2 9 0 )
Wa s h e r f l u i dAt the correct level? ( P. 2 9 5 )
Listed below are the general maintenance items that should be performed
at the intervals specified in the “War ranty and Services Guide” or “Owners
Manual Supplement”. It is recomme nded that any problem you notice
should be brought to the attention of your Lexus dealer or qualified service
shop for advice.

284
4-3. Do-it-yourself maintenance
Engine oilWith the engine at operating temperat ure and turned off, check the oil
level on the dipstick.
■ Checking the engine oil
Park the vehicle on level ground . After turning off the engine, wait
a few minutes for the oil to drain back into the bottom of the
engine.
Hold a rag under the end and pull
the dipstick out.
Wipe the dipstick clean.
Reinsert the dipstick fully.
Holding a rag under the end, pull the dipstick out and check the
oil level.
Wipe the dipstick and reinsert it fully.
Low
Full
STEP1
STEP2
STEP3
STEP4
STEP5
STEP6

285
4-3. Do-it-yourself maintenance
4
Maintenance and care
■Adding engine oil
If the oil level is below or near the
low level mark, add engine oil of
the same type as already in the
engine.
Make sure to check th e oil type and prepare the items needed before
adding oil.
Remove the oil filler cap by turning it counterclockwise.
Add engine oil slowly, checking the dipstick.
Install the oil filler cap by turning it clockwise.
It takes about 1.6 qt. (1.5 L, 1.3 lmp.qt.) to raise the oil level from low to full on the
dipstick.
■Recommended viscosity
SAE 5W-30 is the best choice for
good fuel economy, and good
starting in cold weather.
*: If SAE 5W-30 oil is not avail-able, SAE 10W-30 oil may be
used. However, it should be
replaced with SAE 5W-30 at
the next oil change.
Oil gradeILSAC multi-grade engine oil
ItemsClean funnel
STEP1
STEP2
STEP3
Outside temperature

287
4-3. Do-it-yourself maintenance
4
Maintenance and care
CAUTION
■Used engine oil
●Used engine oil contains potentially harmful contaminants which may cause skin
disorders such as inflammation or skin cancer, so care should be taken to avoid
prolonged and repeated contact. To remove used engine oil from your skin, wash
thoroughly with soap and water.
●Dispose of used oil and filters only in a safe and acceptable manner. Do not dis-
pose of used oil and filters in househol d trash, in sewers or onto the ground.
Call your Lexus dealer, service station or auto parts store for information con-
cerning recycling or disposal.
●Do not leave used engine oil within the reach of children.
NOTICE
■To prevent serious engine damage
Check the oil level on regular basis.
■When replacing the engine oil
●Be careful not to spill engine oil on the vehicle components.
●Avoid overfilling, or the engine could be damaged.
●Check the oil level on the dipstick every time you refill the vehicle.
●Be sure the engine oil filler cap is properly tightened.

5
When trouble arises
367
5-2. Steps to take in an emergency
Wa r n i n g m e s s a g eDetailsCorrection procedure
Indicates that engine oil
level is low.
Check the level of engine
oil, and add if necessary.This message may
appear if the vehicle is
stopped on a slope.
Move the vehicle to a
level surface and check
to see if the message dis-
appears.
(U.S.A. only)
Indicates that the engine
oil is scheduled to be
changed.
Check the engine oil, and
change if necessary.
Comes on approximately
4500 miles (7200 km)
after the engine oil is
changed. (The indicator
will not work properly
unless the oil mainte-
nance data has been
reset.)
(U.S.A. only)
Indicates that the engine
oil should be changed.
Check and change the
engine oil.
Comes on approximately
5000 miles (8000 km)
after the engine oil is
changed (and the oil
maintenance data has
been reset).

380
5-2. Steps to take in an emergency
CAUTION
■Using the tire jack
Improper use of the tire jack may lead to death or serious injuries due to the vehicle
suddenly falling off the jack.
●Do not use the tire jack for any purpose other than replacing tires.
●Only use the tire jack that comes with this vehicle for replacing a flat tire.
Do not use it on other vehicles, and do no t use other tire jacks for replacing tires
on this vehicle.
●Always check that the tire jack is securely set to the jack point.
●Do not put any part of your body under the vehicle supported by the jack.
●Do not start or run the engine while your vehicle is supported by the jack.
●Do not raise the vehicle while someone is in it.
●When raising the vehicle, do not put an object on or under the jack.
●Do not raise the vehicle to a height greate r than that required to replace the tire.
●Use a jack stand if it is necessary to get under the vehicle.
Take particular care when lowering the vehicle to ensure that no one working on or
near the vehicle may be injured.
■Replacing a flat tire
Observe the following precautions to reduce the risk of death or serious injury.
●Never use oil or grease on the wheel bolts or wheel nuts.
The oil or grease can cause the wheel nuts to loosen, causing a serious accident.
Remove any oil or grease on the wheel bolts or wheel nuts.
●Have the wheel nuts tightened with a torque wrench to 76 ft•lbf (103 N•m, 10.5
kgf•m) as soon as possible after changing wheels.
Failure to follow these precautions could cause the nuts to loosen and the wheels
may fall off, which could lead to an accident causing death or serious injury.

404
6-1. Specifications
Electrical system
Differential
*: “Toyota Genuine Differential Gear Oil” is filled in your Lexus vehicle at factory
fill. Use Lexus approved “Toyota Genuine Differential Gear Oil” or an equiva-
lent of matching quality to satisfy the above specification. Please contact your
Lexus dealer for further details.
Battery
Open voltage* at
68 F (20 C):12.6 12.8 V Fully charged
12.2 
12.4 V Half charged
11.8 
12.0 V Discharged
(*: Voltage checked 20 minutes after
the engine and all the lights are turned
off)
Charging rates5 A max.
Oil capacity1.42 qt. (1.35 L, 1.19 lmp.qt.)
Oil type and viscosity*“Toyota Genuine Differential Gear Oil
LT 75W-85 GL-5” or equivalent

441
Alphabetical index
Electric power steering ....................... 166
Electronic keyIf the electronic key does not operate properly ............................ 386
Emergency, in case of If the engine will not start ............... 383
If the shift lever cannot be shifted from P ................................... 384
If the vehicle has discharged battery.................................................. 389
If the warning buzzer sounds......350
If the warning light turns on ..........350
If the warning message is displayed ............................................ 360
If you have a flat tire .........................374
If you lose your keys ........................385
If you think something is wrong................................................... 346
If the electronic key does not operate properly ............................ 386
If your vehicle becomes stuck .... 395
If your vehicle needs to be towed ................................................... 340
If your vehicle overheats................ 392 Engine
ACCESSORY mode......................... 114
Compartment......................................282
Engine switch .......................................... 114
Hood ........................................................ 279
How to start the engine ..................... 114
Identification number ...................... 399
If the engine will not start............... 383
Ignition switch ......................................... 114
Overheating .........................................392
Engine compartment cover .............283
Engine coolant Capacity ................................................ 403
Checking .............................................. 288
Preparing and checking before winter .....................................180
Engine coolant temperature gauge....................................................... 128
Engine immobilizer system.................. 70
Engine oil Capacity .................................................402
Checking ...............................................284
Preparing and checking before winter .....................................180
Engine oil maintenance data............286
EPS .............................................................. 166
Event data recorder ............................348E