oil temperature Lexus GS450h 2007 Using the hands-free system (for cellular phone) / LEXUS 2007 GS450H THROUGH JUNE 2006 PROD. OWNER'S MANUAL (OM30727U)

174
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 ar
e appropriate to the prevailing outside tempera -
tures.
• Engine oil
• Engine/inverter coolant
• Washer fluid
● Ha
ve a service technician inspect th e level and specific gravity of
battery electrolyte.
● Ha
ve the vehicle fitted with four snow tires or purchase a set of
tire chains for the rear tires.
Ensure that all tires are the same si ze and brand, and that chains match
the size of the tires.
● Tire inflation pressure falls in winter as the outside temperature
falls. Add 2.8 to 4.3 psi (20 to 30 kPa, 0.2 to 0.3 kgf/cm2 or bar)
to the standard tire inflation pressure.

365
4-3. Do-it-yourself maintenance
4
Maintenance and care
■Recommended viscosity
SAE 5W-30 is the best choice for
good fuel economy and good
star

ting in cold weather.
*: If SAE 5W-30 is not available, SAE 10W-30 may be used.
However, it should be replaced
with SAE 5W-30 at the next oil
change.
■ How to read oil container labels
Some oil containers are labeled wi th ILS
AC certification marks that
help you to select the proper oil.
Outside temperature

483
6-1. Specifications
6
Vehicle specifications
Lubrication system
*: 5W-30 is an oil that provides optimal levels of fuel efficiency.
Oil viscosity:
● The 5W por
tion of the oil viscosity rating indicates the characteristic of
the oil which allows cold startability . Oils with a lower value before the W
allow for easier starting of the engine in cold weather.
● The 30 in 5W-30 indicates the oil viscosity when the oil is as its operating
temperature. An oil with a higher viscosity may be better suited if the
vehicle is operated at high speeds, or under extreme load condition.
Oil capacity 
(drain and refill)
with filter
without filter6.6 qt. (6.3 L, 5.5 lmp.qt.)
6.2 qt. (5.9 L, 5.2 lmp.qt.)
Oil gradeILSAC multigrade engine oil
Recommended oil
viscosity
Use Lexus approved “Toyota Genuine Motor Oil” or
equivalent to satisfy the above grade and viscosity.
Outside temperature

497
6-1. Specifications
6
Vehicle specifications
Warning: The temperature grades for this tire are established for a tire that
is properly inflated and not overloaded.
Excessive speed, underinflation, or excess iv
e loading, either separately or in
combination, can cause heat build up 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
Maximum inflation pres-
sureThe maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Maximum loaded vehicle
weight
The sum of: 
(a) Curb weight 
(b) Accessory weight 
(c) Vehicle capacity weight 
(d) Production options weight
Normal occupant weight150 lb. (68 kg) times the number of occupants speci-
fied in the second column of Table 1
* that follows

512
Alphabetical index
Emergency, in case ofIf a warning light turns on .............. 430
If a warning message is 
displayed ............................................ 436
If the hybrid system will not 
start........................................................ 466
If the shift lever cannot be 
shifted from P ................................... 467
If the 12 volt battery is 
discharged ......................................... 471
If you have a flat tire ............ 455, 456
If you lose your keys......................... 468
If you think something is 
wrong ....................................................427
If your vehicle becomes stuck..... 478
If your vehicle needs to be 
towed ................................................... 420
If your vehicle overheats ................ 475
When the electronic key battery 
is discharged .................................... 469
Energy monitor............................................ 6
Engine Compartment ....................................... 361
Hood........................................................ 358
How to start the hybrid system
.....101
If the hybrid system will not 
start........................................................ 466
Overheating......................................... 475
Power switch .......................................... 101
Engine compartment cover ............. 362
Engine coolant temperature 
gauge.........................................................110
Engine/inverter coolant Capacity ................................................. 484
Checking ............................................... 368
Preparing and checking 
before winter ...................................... 174 Engine oil
Capacity ................................................ 483
Checking............................................... 363
Preparing and checking  before winter...................................... 174
Engine oil maintenance data ........... 366
EPS (Electric Power Steering) ......... 162
Event data recorder ............................ 428
First-aid kit storage belt ..................... 332
Floor mats .................................................. 331
Fluid Brake ....................................................... 370
Washer.................................................... 374
Fog lights Switch ........................................................ 123
Wattage ................................................. 488
Foot light .................................................. 308
Front passenger's seat
belt 
reminder light ..................................... 433
Front seats Adjustment ............................................... 34
Driving position memory .................. 36
Front turn signal lights Wattage ................................................. 488
Fuel Capacity ................................................ 482
Fuel gauge ................................................ 110
Gas station information ................. 520
Information ........................................... 489
Refueling ................................................... 58
Messages .............................................. 450
Fuel filler door ........................................... 58
Fuses .......................................................... 395
F

514
Alphabetical index
Turn signal lever ..................................108
Vanity lights ........................................... 318
Wattage................................................. 488
Maintenance Do-it-yourself maintenance ......... 355
General maintenance ....................... 351
Maintenance data............................. 480
Maintenance requirements .......... 349
Meter Instrument panel light control .......... 111
Meters ........................................................ 110
Micro dust and pollen removal 
mode ........................................................ 194
Mirrors Inside rear view mirror....................... 49
Side mirror heater ............................... 199
Side mirrors ............................................. 50
Vanity mirrors....................................... 318
Moon roof ................................................... 55
MP3 disc ..
.................................................... 224
Multi-information display ........
................117
Odometer................................................... 110
Oil Engine oil ............................................... 363
Opener Fuel filler door......................................... 58
Hood........................................................ 358
Trunk ........................................................... 30
Outside rear view mirrors Adjusting and folding ......................... 50
Driving position memory.................. 36
Outside temperature display........... 320
Overhead console ................................ 313
Overheating, Engine .......
......................475 Parking brake..........................................
109
Parking lights Replacing light bulbs ......................... 413
Switch ........................................................ 120
Wattage ................................................. 488
PCS (Pre-Collision System) .............. 163
Personal lights........................................ 309
Power meter.............................................. 110
Power outlet ........................................... 323
Power windows ........................................ 52
Radar cruise control............................. 130
Radiator .................................................... 369
Radio .........
..................................................... 203
RDS (Radio Date System) ................ 205
Rear sunshade ....................................... 329
Rear turn signal lights Replacing light bulbs ......................... 413
Wattage ................................................. 488
Rear view monitor system ................. 158
Rear window defogger ........................ 199
Replacing Electronic key battery ..................... 393
Fuses ........................................................ 395
Light bulbs .............................................. 413
Reporting safety defects for 
U.S.A. owners .....................................508
Seat belts Adjusting the seat belt ........................ 43
Automatic Locking Retractor 
(ALR) ....................................................... 44
Child restraint system 
installation ............................................. 83
Cleaning and maintaining 
the seat belts .....................................347
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