2020 Lexus GS F fuel type

15Pictorial index
GS350_GS F_OM_OM30J07U_(U)
Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 143
Locking/unlocking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 143
Opening/closing the door glasses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 181
Locking/unlocking by using the me chanical key . . . . . . . . . . . . . . . . . . . . . . . P. 502
Warning lights/warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 437, 444
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 229
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 305
To prevent freezing (windshield wiper de-icer)*. . . . . . . . . . . . . . . . . . . . . . . P. 324
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 365
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 234
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 234
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 519
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 394
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 525
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 30 5
Checking/rotation/tire pressure warning system . . . . . . . . . . . . . . . . . . . . . . P. 394
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 473, 484
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 378
Opening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 378
Engine compartment cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 383
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 519
Coping with overheat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 509
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 444
Headlights/front side marker lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 222
Front turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 216
Parking lights/daytime running lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 222
Side turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 216
1
2
3
4
5
Light bulbs of the exte rior lights for driving
(Replacing method: P. 419, Watts: P. 528)
*: If equipped
6
7
8

190
GS350_GS F_OM_OM30J07U_(U)4-1. Before driving
■Drum-in-disc type parking brake system
Your vehicle has a drum-in-disc type parking brake system. This type of brake system
needs bedding-down of the brake shoes peri
odically or whenever the parking brake
shoes and/or drum are replaced. Have your Lexus dealer perform the bedding down
operation.
■Operating your vehicle in a foreign country
Comply with the relevant vehicle registration laws and confirm the availability of the cor-
rect fuel. ( P. 519)
■Brake pads and discs
●F SPORT models of GS350, and GS F: The brake pads and discs are designed for use
under high load conditions. Therefore, brake noise may be generated depending on
the vehicle speed, braking force and vehicl e environment (temperature, humidity, etc.).
●GS F: In order to achieve steady braking performance even during high-load sporty
driving, brake pads that include a large amount of iron are used. As a result, rust may
form if the vehicle is parked for a long time with wet brake pads or disc rotors, causing
them to stick. When parts are stuck, abnormal noise or vibration may occur during
driving, so lightly depress the accelerator pedal and drive slowly. (Before parking the
vehicle after it is washed, drive slowly an d apply the brakes several times to dry the
parts.)

234
GS350_GS F_OM_OM30J07U_(U)4-4. Refueling
Opening the fuel tank cap
●Turn the engine switch off and ensure that all the doors and windows are
closed.
●Confirm the type of fuel.
■Fuel types

P. 529
■Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your vehi cle has a fuel tank opening that only accom-
modates the specia l nozzle on unleaded fuel pumps.
■If the malfunction indicator lamp illuminates
The malfunction indicator lamp may illuminate erroneously if refueling is performed
repeatedly when the fuel tank is nearly full.
Perform the following steps to open the fuel tank cap:
Before refueling the vehicle

GS350_GS F_OM_OM30J07U_(U)
5198-1. Specifications
8
Vehicle specifications
GS350
*: The engine oil capacity is a reference quantity to be used when changing the engineoil. Warm up and turn off the engine, wait more than 5 minutes, and check the oil level
on the dipstick.
■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 following
grade and viscosity.
Oil grade: ILSAC GF-5 multigrade engine oil
Fuel
Fuel typeUnleaded gasoline only
Octane Rating91 (Research Octane Number 96) or higher
Fuel tank capacity (Reference)17.5 gal. (66.3 L, 14.6 Imp.gal.)
Lubrication system
GS350
2WDAWD
Oil capacity
(Drain and refill  reference
*)
With filter
Without filter
6.0 qt.
(5.7 L, 5.0 Imp.qt.)
5.8 qt.
(5.5 L, 4.8 Imp.qt.)6.8 qt.
(6.4 L, 5.6 Imp.qt.)
6.3 qt.
(6.0 L, 5.3 Imp.qt.)

GS350_GS F_OM_OM30J07U_(U)
5318-1. Specifications
8
Vehicle specifications
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 can cause damage to your vehicle’s three-way catalytic converters
causing the emission control system to malfunction.
●Do not use gasohol other than the type previously stated.
Other gasohol may cause fuel system damage or vehicle performance problems.
●Using unleaded gasoline with an octane number or rating lower than the level previ-
ously stated may cause pe rsistent heavy knocking.
At worst, this may lead to engine da mage and will void the vehicle warranty.
■Fuel-related poor driveability
If poor driveability (poor hot starting, vaporization, engine knocking, etc.) is encoun-
tered after using a different type of fuel, discontinue the use of that type of fuel.
■When refueling with gasohol
Take care not to spill gasohol. It can damage your vehicle’s paint.

583Alphabetical index
GS350_GS F_OM_OM30J07U_(U)
Engine oil maintenance data ............. 371
Engine switch ......................................... 203Auto power off function................. 205
Changing the engine switch modes ..................................................204
If your vehicle has to be stopped in an emergency ..........425
Starting the engine ........................... 203
EPS (Electric Power Steering) ....... 298 Function ................................................. 298
Warning light .......................................436
Warning message ............................. 442
Event data recorder (EDR) ...................10
Expert mode ............................................ 301
First-aid kit storage net ...................... 344
Flat tire Vehicles with spare tire .................. 473
Vehicles without spare tire .......... 484
Floor mats ................................................... 32
Fluid Automatic transmission ..................523
Brake ........................................................524
Washer ...................................................393
Footwell light .......................................... 337
Front passenger occupant classification system ............................ 52
Front personal lights............................ 338 Front seats ................................................. 164
Adjustment..............................................164
Cleaning................................................. 367
Correct driving posture .................... 34
Driving position memory.................166
Head restraints ....................................... 171
Power easy access system .............166
Seat heaters .......................................... 333
Seat position memory .......................166
Seat ventilators.................................... 333
Front side marker lights......................222 Light switch............................................222
Replacing light bulbs ......................... 421
Welcome light illumination control.................................................... 144
Front turn signal lights .......................... 216 Replacing light bulbs ............. 420, 421
Turn signal lever ................................... 216
Wattage .................................................528
Fuel Capacity...................................................519
Fuel gauge .................................... 93, 100
Fuel pump shut off system ............ 434
Information............................................ 529
Type............................................................519
Warning light ....................................... 437
Warning messages .......................... 442
Fuel consumption Average fuel consumption............................. 108, 115
Average fuel consumption after refueling ........................... 108, 115
Current fuel consumption..... 108, 115
F

589Alphabetical index
GS350_GS F_OM_OM30J07U_(U)
Radar cruise control (dynamic radar cruise control with
full-speed range) ............................... 266
Radiator .................................................... 389
Radio
*
RBDS (Radio Broadcast Data Systems)
*
Rear air conditioning system ........... 329
Rear door sunshades .......................... 349
Rear personal lights............................. 338
Rear side marker lights ...................... 222 Light switch ........................................... 222
Replacing light bulbs ..........................421
Welcome light illumination control ......................... 144
Rear seat heaters.................................. 333
Rear sunshade ....................................... 349 Operation ..............................................349
Reverse operation feature............ 350 Rear turn signal lights ........................... 216
Replacing light bulbs ......................... 421
Turn signal lever ................................... 216
Rear view mirror Inside rear view mirror...................... 175
Outside rear view mirrors .............. 177
Rear view monitor system
*
Rear window defoggers .....................324
Refueling...................................................234 Capacity...................................................519
Fuel types.................................................519
Opening the fuel tank cap ............ 236
When the fuel filler door cannot be opened ..........................237
Remote Touch
*...................................... 312
Replacing Electronic key battery .........................411
Fuses .......................................................... 413
Light bulbs...............................................419
Tires .......................................................... 473
Rev indicator ..................................... 94, 101
Rev peak ............................................94, 102
Reporting safety defects for U.S. owners .................................. 560
Resetting the message indicating maintenance is required .................. 371
R
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.

600
GS350_GS F_OM_OM30J07U_(U)GAS STATION INFORMATION
Auxiliary catch leverTrunk openerFuel filler door
P. 378 P. 149 P. 236
Hood lock release leverTire inflation pressure
P. 378
P. 525
Fuel tank capacity
(Reference) 17.5 gal. (66.3 L, 14.6 Imp.gal.)
Fuel type
Unleaded gasoline only P. 519
Cold tire inflation
pressure P. 525
Engine oil capacity
(Drain and refill —
reference) P. 519
Engine oil type
P. 519