2010 Lexus IS250 oil temperature

396
4-3. Do-it-yourself maintenance
CAUTION
The engine compartment contains many mechanisms and fluids that may move sud-
denly, become hot, or become electrically energized. To avoid death or serious injury,
observe the following precautions.
■When working on the engine compartment
●Keep hands, clothing, and tools away from the moving fan and engine drive belt.
●Be careful not to touch the engine, radiator, exhaust manifold, etc. right after driv-
ing as they may be hot. Oil and other fluids may also be hot.
●Do not leave anything that may burn easily, such as paper or rags, in the engine
compartment.
●Do not smoke, cause sparks or expose an open flame to fuel or the battery. Fuel
and battery fumes are flammable.
●Be extremely cautious when working on the battery. It contains poisonous and
corrosive sulfuric acid.
■When working near the electric cooling fan or radiator grille
Be sure the “ENGINE START STOP” switch is OFF.
With the “ENGINE START STOP” switch in IGNITION ON mode, the electric
cooling fan may automatically start to run if the air conditioning is on and/or the
coolant temperature is high. (P. 4 0 8 )
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from getting
in the eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear due to
dirt in the air. Also, a backfire could cause a fire in the engine compartment.

403
4-3. Do-it-yourself maintenance
4
Maintenance and care
Engine oil
With the engine at operating temperature 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
more than five 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

523
6-1. Specifications
6
Vehicle specifications
Lubrication system
■Engine oil selection
“Toyota Genuine Motor Oil” is used in your Lexus vehicle. Use Lexus
approved “Toyota Genuine Motor Oil” or equivalent to satisfy the follow-
ing grade and viscosity.
Oil grade: ILSAC multigrade engine oil
Recommended viscosity: SAE 5W-30
SAE 5W-30 is the best choice for
good fuel economy and good
starting in cold weather.
If SAE 5W-30 is not available,
SAE 10W-30 oil may be used.
However, it should be replaced
with SAE 5W-30 at the next oil
change.
IS250IS350
Oil capacity
Drain and refill
(Reference)
without filter
2WD models
AWD models
6.2 qt. (5.9 L, 5.2 Imp. qt.)
6.3 qt. (6.0 L, 5.3 Imp. qt.)6.2 qt. (5.9 L, 5.2 Imp. qt.)

with filter
2WD models
AWD models
6.6 qt. (6.3 L, 5.5 Imp. qt.)
6.8 qt. (6.4 L, 5.7 Imp. qt.)6.6 qt. (6.3 L, 5.5 Imp. qt.)

Outside temperature

543
6-1. Specifications
6
Vehicle specifications
■Temperature A, B, C
The temperature grades are A (the highest), B, and C, representing
the tire's resistance to the generation of heat and its ability to dissipate
heat when tested under controlled conditions on a specified indoor
laboratory test wheel.
Sustained high temperature can cause the material of the tire to degenerate
and reduce tire life, and excessive temperature can lead to sudden tire fail-
ure.
The grade C corresponds to a level of performance which all passenger car
tires must meet under the Federal Motor Vehicle Safety Standard No. 109.
Grades B and A represent higher levels of performance on the laboratory
test wheel than the minimum required by law.
Warning: The temperature grades for this tire are established for a tire that
is properly inflated and not overloaded.
Excessive speed, underinflation, or excessive loading, either separately or in
combination, can cause heat buildup and possible tire failure.
Glossary of tire terminology
Tire related termMeaning
Accessory weight
The combined weight (in excess of those standard
items which may be replaced) of automatic transmis-
sion, power steering, power brakes, power windows,
power seats, radio and heater, to the extent that these
items are available as factory-installed equipment
(whether installed or not)
Cold tire inflation pres-
sureTire pressure when the vehicle has been parked for
three hours or more, or has not been driven more
than 1 mile or 1.5 km under that condition
Curb weight
The weight of a motor vehicle with standard equip-
ment, including the maximum capacity of fuel, oil and
coolant, and if so equipped, air conditioning and
additional weight optional engine

567
Alphabetical index
Engine compartment cover............. 402
Engine coolant
Capacity................................................. 525
Checking ............................................... 406
Preparing and checking
before winter ...................................... 210
Engine coolant temperature
gauge ........................................................ 151
Engine immobilizer system ................. 86
Engine oil
Capacity................................................. 523
Checking ............................................... 403
Preparing and checking
before winter ...................................... 210
Engine oil maintenance data ........... 405
EPS............................................................... 196
Event data recorder.............................469
First-aid kit storage belt..................... 360
Floor mat.................................................. 359
Fluid
Brake .......................................................408
Washer ..................................................... 413
Fog lights
Switch ........................................................168
Wattage ................................................. 534
Footwell lights........................................ 329
Front fog lights
Switch ........................................................168
Wattage ................................................. 534Front passenger occupant
classification system .......................... 104
Front passenger's seat belt
reminder light...................................... 473
Front seats
Adjustment .................................................51
Driving position memory .................. 53
Seat position memory ........................ 57
Front turn signal lights
Switch.........................................................147
Wattage ..................................................534
Fuel
Capacity ................................................. 522
Fuel gauge................................................ 151
Fuel pump shut off system............ 468
Gas station information ..................576
Information ........................................... 535
Refueling....................................................83
Fuel door .....................................................83
Fuel filler door ...........................................83
Fuel pump shut off system .................468
Fuses .......................................................... 436
Garage door opener ..........................363
Gas station information...................... 576
Gauges ........................................................151
Glove box ................................................333
Glove box light ...................................... 334
F
G

569
Alphabetical index
Light bulbs
Replacing............................................... 452
Wattage ................................................. 534
Lights
Door courtesy lights ........................ 329
Emergency flasher switch ............. 460
Fog light switch.....................................168
Hazard light switch........................... 460
Headlights switch ................................165
Interior light switch.............................. 331
Outer foot lights................................. 329
Overhead courtesy light ............... 329
Personal light switch .......................... 331
Replacing light bulbs ....................... 452
Scuff lights ............................................. 329
Shift lever light ..................................... 329
Turn signal lever................................... 147
Vanity lights .......................................... 340
Wattage ................................................. 534
Load capacity ........................................ 209
Maintenance
Do-it-yourself maintenance ......... 394
General maintenance ..................... 390
Maintenance data ............................. 520
Maintenance requirements ..........388
Manual transmission ............................. 145
Meter
Instrument panel light control ....... 152
Meters .........................................................151
Micro dust and pollen filter ...............224Mirrors
Inside rear view mirror ....................... 72
Side mirror heater .............................228
Side mirrors ............................................. 73
Vanity mirrors ..................................... 340
Moon roof ................................................... 79
MP3 disc ..................................................248
Multi-information display ................... 160
Noise from under vehicle...................... 19
Odometer...................................................151
Oil
Engine oil............................................... 403
Opener
Fuel filler door .........................................83
Hood ........................................................ 397
Trunk ........................................................... 47
Outer foot lights
Outer foot lights .................................329
Wattage ..................................................534
Outside rear view mirrors
Adjusting and folding.......................... 73
Mirror position memory ....................53
Outside temperature display ............. 161
Overhead console ...............................335
Overhead courtesy lights
Overhead courtesy lights..............329
Wattage ..................................................534
Overheating, Engine............................ 512L
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