2008 Lexus GS350 engine oil capacity

544
6-1. Specifications
GS_G_U
May 13, 2008 5:14 pm
Lubrication systemGS460
Oil viscosity:
● The 0W portion of the o il 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 20 in 0W-20 indicates the oil viscosi ty when the oil is at 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: 9.1 qt. (8.6 L, 7.6 Imp.qt.)
Without filter: 8.9 qt. (8.4 L, 7.4 Imp.qt.)
Oil gradeILSAC multi-grade engine oil
Recommended oil
viscosity
Use Lexus approved “Toyota Genuine Motor Oil” or
equivalent to satisfy the grade and viscosity shown
below.
Outside temperature

545
6-1. Specifications
6
Vehicle specifications
GS_G_U
May 13, 2008 5:14 pm
GS350
Oil viscosity:
● The 5W portion 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.
2WD4WD
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.)6.7 qt. (6.4 L, 5.6 Imp.qt.)
6.3 qt. (6.0 L, 5.3 Imp.qt.)
Oil gradeILSAC multigrade engine oil
Recommended oil
viscosity
Use Lexus approved “Toyota Genuine Motor Oil” or
equivalent to satisfy the grade and viscosity shown
below.
Outside temperature

547
6-1. Specifications
6
Vehicle specifications
GS_G_U
May 13, 2008 5:14 pm
Electrical system
Differential
Rear differential: “Toyota Genuine Diff erential Gear Oil” is filled in your
Lexus vehicle at factory fill. Use Lexu s approved “Toyota Genuine Differen-
tial Gear Oil” or an equivalent of matching quality to satisfy the above spec-
ification. Please contact your Lexus dealer for further details.
12 volt battery
Open voltage at
68F (20 C):12.6  12.8V Fully charged 
12.2  12.4V Half charged 
11.8  12.0V Discharged 
(Voltage is checked 20 minutes after
the engine and all lights are turned off.)
Charging rates5A max.
GS460/
GS350 (2WD)GS350 (4WD)
FrontRear
Oil capacity1.42 qt.
(1.35 L, 1.19 Imp.qt.)0.73 qt.
(0.70 L, 0.61 Imp.qt.)1.42 qt.
(1.35 L, 1.19 Imp.qt.)
Oil type and
viscosity
Toyota Genuine Dif-
ferential Gear Oil LT
75W-85 GL-5 or
equivalent
Hypoid gear oil API
GL-5
Above 0°F (-18°C):
SAE 90
Below 0°F (-18°C):
SAE 80W or SAE
80W-90
Toyota Genuine Dif-
ferential Gear Oil LT
75W-85 GL-5 or
equivalent

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6-1. Specifications
6
Vehicle specifications
GS_G_U
May 13, 2008 5:14 pm
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)
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 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
Occupant distributionDistribution of occupants in a vehicle as specified in
the third column of Table 1* below
Production options
weight
The combined weight of installed regular production
options weighing over 5 lb. (2.3 kg) in excess of the
standard items which they replace, not previously
considered in curb weight or accessory weight,
including heavy duty brakes, ride levelers, roof rack,
heavy duty battery, and special trim
RimA metal support for a tire or a tire and tube assembly
upon which the tire beads are seated
Rim diameter 
(Wheel diameter)Nominal diameter of the bead seat

586
Alphabetical index
GS_G_U
May 13, 2008 5:14 pm
DoorsDoor lock................................. 22, 34, 37
Rear door child protector ................ 38
Driver’s seat belt reminder light .....490
Driver’s seat position memory ........... 47
Driving Correct posture .................................... 78
Procedures ...............................................112
DVD player/changer........................... 251
Electric power steering ....................... 184
Electronic key If the electronic key does 
not operate properly .................... 526
Replacing battery .............................. 440
Emergency, in case of If a warning light turns on ............. 488
If a warning message is 
displayed ............................................ 497
If the electronic key does 
not operate properly .................... 526
If the engine will not 
start........................................................ 523
If the shift lever cannot be  shifted from “P”................................ 524
If the 12 volt battery is 
discharged ....................................... 529
If you have a flat tire ............... 512, 522
If you lose your keys......................... 525
If you think something is 
wrong ................................................... 484
If your vehicle becomes stuck.....536
If your vehicle needs to be 
towed ................................................... 478
If your vehicle overheats ................ 533 Engine
ACCESSORY mode........................122
Compartment ..................................... 406
Engine (ignition) switch...................... 121
Hood ....................................................... 403
How to start the engine ..................... 121
If the engine will not start ............... 523
Overheating ........................................ 533
Engine compartment cover .............408
Engine coolant temperature 
gauge .......................................................132
Engine coolant Capacity ................................................ 546
Checking................................................. 414
Preparing and checking 
before winter...................................... 199
Engine oil Capacity ................................................ 544
Checking............................................... 409
Preparing and checking 
before winter...................................... 199
Engine oil maintenance data .............412
Engine (ignition) switch......................... 121
Event data recorder ............................ 486
First-aid kit storage belt ..................... 360
Floor mats ................................................ 359
Fluid Brake ......................................................... 416
Washer................................................... 420
Fog lights Switch ........................................................ 145
Wattage ................................................. 552
Foot light .................................................. 337
E
F

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May 13, 2008 5:14 pm
GAS STATION INFORMATION
Auxiliary catch lever
P. 4 0 3
Trunk opener
P. 4 2
Fuel filler door
P. 7 0
Hood lock release lever
P. 4 0 3
Fuel filler door opener
P. 7 0
Tire inflation pressure
P. 5 5 0
Fuel tank capacity18.7 gal. (71 L, 15.6 Imp.gal.)
Fuel typePremium unleaded gasoline onlyP. 71, 543
Cold tire inflation 
pressureP. 5 5 0
Engine oil capacity
(Drain and refill)
With filter
Without filterqt. (L, Imp.qt.)
GS460 GS350 (2WD) GS350 (4WD)
9.1 (8.6, 7.6) 6.6 (6.3, 5.5) 6.7 (6.4, 5.6)
8.9 (8.4, 7.4) 6.2 (5.9, 5.2) 6.3 (6.0, 5.3)
Engine oil type“Toyota Genuine Motor Oil” or equivalent
Oil grade: ILSAC multigrade engine oil P. 544