2012 Lexus GS250 fuel

843
8 8-1. Specifications
Vehicle specifications
GS350/250_EE (OM30C36E)How to read oil container labels:
Either or both API registered marks are added to some oil con-
tainers to help you select the oil you should use.
API Service Symbol
Top portion: The oil quality des-
ignation by API (American
Petroleum Institute) (SN)
Center portion: The SAE vis-
cosity grade (SAE 10W-30)
Lower portion: “Resource-Con-
serving” means that the oil has
fuel saving and environmental
protection capabilities.
ILSAC Certification Mark
The ILSAC (International
Lubricant Standardization and
Approval Committee) certifica-
tion Mark is displayed on the
front of the container.
1
2

845
8 8-1. Specifications
Vehicle specifications
GS350/250_EE (OM30C36E)Recommended viscosity (SAE):
SAE 0W-20 is filled into your
Lexus vehicle at manufactur-
ing, and the best choice for
good fuel economy and good
starting in cold weather.
If SAE 0W-20 oil is not avail-
able, SAE 5W-30 oil may be
used. However, it should be
replaced with SAE 0W-20 at
the next oil change.
If you use SAE 10W-30 or a
higher viscosity engine oil in
extremely low temperatures,
the engine may become diffi-
cult to start, so SAE 5W-30 or
lower viscosity engine oil is
recommended.
Temperature range anticipated
before next oil change.Preferred

8468-1. Specifications
GS350/250_EE (OM30C36E)Oil viscosity (0W-20 is explained here as an example):
• The 0W in 0W-20 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 20 in 0W-20 indicates the viscosity characteristic of the
oil when the oil is at high temperature. An oil with a higher
viscosity (one with a higher value) may be better suited if the
vehicle is operated at high speeds, or under extreme load con-
ditions.
How to read oil container labels:
Either or both API registered marks are added to some oil con-
tainers to help you select the oil you should use.
API Service Symbol
Top portion: The oil quality des-
ignation by API (American
Petroleum Institute) (SN)
Center portion: The SAE vis-
cosity grade (SAE 0W-20)
Lower portion: “Resource-Con-
serving” means that the oil has
fuel saving and environmental
protection capabilities.
ILSAC Certification Mark
The ILSAC (International
Lubricant Standardization and
Approval Committee) Certifica-
tion Mark is displayed on the
front of the container.
1
2

8548-1. Specifications
GS350/250_EE (OM30C36E)
Fuel information
Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your vehicle has a fuel tank opening that
only accommodates the special nozzle on unleaded fuel pumps.
If your engine knocks
Consult any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional.
You may occasionally notice light knocking for a short time while acceler-
ating or driving uphill. This is normal and there is no need for concern.
EU area:
Your vehicle must use only unleaded gasoline conforming to Euro-
pean standard EN228.
For optimum engine performance, select unleaded gasoline with a
Research Octane Number of 95 or higher.
Except EU area:
Your vehicle must use only unleaded gasoline.
For optimum engine performance, select unleaded gasoline with a
Research Octane Number of 95 or higher.

855
8 8-1. Specifications
Vehicle specifications
GS350/250_EE (OM30C36E)
NOTICE
Notice on fuel quality
Do not use improper fuels. If improper fuels are used, the engine will be
damaged.
Do not use leaded gasoline.
Leaded gasoline will cause the three-way catalytic converter to lose its
effectiveness and the emission control system to function improperly.
Gasoline engine (EU area): Bioethanol fuel sold under names such as
“E50” or “E85” and fuel containing a large amount of ethanol should not
be used. The use of these fuels will damage the vehicle’s fuel system. In
case of any doubt, ask any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional.
Gasoline engine (except EU area): Bioethanol fuel sold under names such
as “E50” or “E85” and fuel containing a large amount of ethanol should
not be used. Your vehicle can use gasoline mixed with 10% max ethanol.
The use of fuel with more than 10% ethanol content (E10) will damage
the vehicle’s fuel system. You must ensure that refueling is carried out
only from a source where fuel specification and quality can be guaranteed.
In case of any doubt, ask any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.

857
8 8-2. Customization
Vehicle specifications
GS350/250_EE (OM30C36E)
Multi-
informa-
tion
display
(P. 102)
“Language”*2
“Ameri-
can
English”
(Ameri-
can
English)

(French)
—O—
(German)
(Spanish)
(Italian)
(Russian)
“Units”*2“km
(L/
100km)”“km (km/
L)”
—O—“miles
(MPG)”
*3
“ECO lamp”
“ON
(Self-
lighting)”“OFF”
—O—“ON
(Always)”
“Drive monitor”“Outside”
“Fuel
consump-
tion”
—O—
“Cruising
range”
“Lamp brightness”“Stan-
dard”“Bright”—O—
“SPORT lamp”“ON”“OFF”—O—
“Default settings”“OFF”“ON”—O—
ItemFunctionDefault
settingCustom-
ized set-
ting
123

881Alphabetical index
GS350/250_EE (OM30C36E)
Engine switch ............................207
EPS (Electric Power Steering) ..334
Function ................................334
Warning light........................751
Warning message..................762
First-aid kit storage net..............621
Flat tire
Vehicles with a spare tire .....783
Vehicles without a spare tire 798
Floor mats....................................34
Fluid
Automatic transmission ........848
Brake ....................................849
Washer ..................................671
Fog lights ...................................239
Replacing light bulbs ....724, 735
Switch ...................................239
Wattage .................................853
Follow me home system............229
Footwell light ............................611
Front air conditioning system....409
Front fog lights ..........................239
Replacing light bulbs ............724
Switch ...................................239
Wattage .................................853
Front personal lights ..................612
Front position lights ..................228
Light switch ..........................228
Replacing light bulbs ............735
Welcome light illumination
control ................................123Front seats................................. 157
Adjustment........................... 157
Cleaning ............................... 648
Correct driving posture .......... 36
Driving position memory..... 162
Head restraints ..................... 168
Power easy access system.... 166
Seat heaters .......................... 631
Seat position memory .......... 162
Seat ventilators .................... 632
Front turn signal lights ............. 223
Replacing light bulbs ........... 726
Turn signal lever .................. 223
Wattage ................................ 853
Fuel ........................................... 249
Capacity ............................... 838
Fuel gauge.............................. 99
Fuel pump shut off system... 748
Information .......................... 854
Refueling ............................. 249
Type ............................. 249, 838
Warning light ....................... 752
Warning messages ............... 769
Fuel filler door .......................... 249
If the fuel filler door
cannot be opened ............... 252
Refueling ............................. 249
Fuel pump shut off system ....... 748
Fuses ......................................... 700
F

886Alphabetical index
GS350/250_EE (OM30C36E)
Pre-Crash Safety system (PCS) .343
Function ................................343
PCS OFF switch ...................344
Warning light........................751
Warning message..759, 767, 774
Radar cruise control (dynamic
radar cruise control) ................258
Radiator .....................................667
Radio .........................................458
Radio Data System (RDS) ........463
Rear air conditioning system .....425
Rear door sunshades ..................636
Rear fog light.............................239
Replacing light bulb .............735
Switch ...................................239
Rear personal lights ...................612
Rear seat heaters ........................632
Rear sunshade............................636
Operation ..............................636
Reverse operation feature .....637
Rear turn signal lights ...............223
Replacing light bulbs ............728
Turn signal lever ...................223
Wattage .................................853
Rear view mirror
Inside rear view mirror .........171
Outside rear view mirrors .....174
Rear view monitor system .........297
Rear window defogger .............430Refueling .................................. 249
Capacity ............................... 838
Fuel types............................. 838
If the fuel filler door cannot
be opened .......................... 252
Opening the fuel tank cap .... 251
Remote Touch .......................... 368
Remote Touch screen .............. 370
Replacing
Electronic key battery .......... 697
Fuses .................................... 700
Light bulbs ........................... 722
Tires ..................................... 783
Seat belt reminder light ............ 752
Seat belts..................................... 38
Adjusting the seat belt ........... 39
Child restraint system
installation ........................... 70
Cleaning and maintaining
the seat belt........................ 649
Emergency Locking
Retractor (ELR)................... 41
How to wear your seat belt .... 38
How your child should wear
the seat belt.......................... 41
Pre-crash seat belts ................ 40
Pregnant women, proper
seat belt use ......................... 42
Reminder light and buzzer... 752
Seat belt pretensioners ........... 40
SRS warning light................ 750
R
S