Lexus GS300h 2017 Owner's Manual

551
8
8-1. Specifications
Vehicle specifications
GS450h_300h_OM_OM30F92E_(EE)Oil viscosity (0W-20 is explained here as an example):

5528-1. Specifications
GS450h_300h_OM_OM30F92E_(EE)
Cooling system
Gasoline engine
Power control unit
Left-hand drive vehiclesRight-hand drive vehicles
Capacity
GS450h9.2 L (9.7qt.,
8.1 Imp.qt.)2.1 L (2.2qt.,
1.8 Imp.qt.)1.9 L (2.0qt.,
1.7 Imp.qt.)
GS300h8.1 L (8.6 qt.,
7.1 Imp.qt.)1.6 L (1.7 qt.,
1.4 Imp.qt.)1.8 L (1.9 qt.,
1.6 Imp.qt.)
Coolant typeUse either of the following:

553
8
8-1. Specifications
Vehicle specifications
GS450h_300h_OM_OM30F92E_(EE)*
: The fluid capacity is the quantity of reference.
If replacement is necessary, contact any authorized Lexus retailer or Lexus autho-
rized repairer, or any reliable repairer.
Electrical system
12-volt battery
Open voltage at 20 C (68 F):12.0 V or higher
(Voltage is checked 20 minutes after the
hybrid system and all lights are turned off.)
Charging rates5 A max.
Hybrid transmission
Fluid capacity *GS450h5.69 L (6.01 qt., 5.01 Imp.qt.)
GS300h3.80 L (4.02 qt., 3.34 Imp.qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Hybrid transmission fluid type
Using transmission fluid other than “Toyot a Genuine ATF WS” may cause deterioration
in shift quality and ultimately damage the transmission of your vehicle.

5548-1. Specifications
GS450h_300h_OM_OM30F92E_(EE) Your Lexus vehicle is filled with “Toyota Ge
nuine Differential Gear Oil” at the factory.
Use Lexus approved “Toyota Genuine Differentia l Gear Oil” or an equivalent of match-
ing quality to satisfy the above specification. Please contact any authorized Lexus retailer
or Lexus authorized repairer, or any reliable repairer for further details.
* : Minimum pedal clearance when depressed with a force of 500 N (51.0 kgf, 112.4 lbf)
while the hybrid system is operating.
When performing the brake pedal inspection , also be sure to check that the brake
system warning light is not illuminated when the hybrid system is operating (If the
brake system warning light is illuminated, refer to P. 460).
Differential
Oil capacity1.35 L (1.43 qt., 1.19 Imp.qt.)
Oil type and viscosityToyota Genuine Differential gear oil LT
75W-85 GL-5 or equivalent
Brakes
Pedal clearance *115 mm (4.5 in.) Min.
Pedal free play1.0 — 6.0 mm (0.04 — 0.24 in.)
Fluid typeSAE J1703 or FMVSS No. 116 DOT 3,
SAE J1704 or FMVSS No. 116 DOT 4
Steering
Free playLess than 30 mm (1.2 in.)

555
8
8-1. Specifications
Vehicle specifications
GS450h_300h_OM_OM30F92E_(EE)
Type A
* : For optimizing fuel economy, ECO tire pressure is recommended. Tire pressure
affects traveling comfort, road noise and steering characteristics.
Tires and wheels
Tire size225/50R17 94W
Tire inflation
pressure
(Recommended
cold tire inflation
pressure)
Vehicle speed
Front tire
kPa (kgf/cm 2
or
bar, psi)Rear tire
kPa (kgf/cm 2
or
bar, psi)
More than 190 km/h
(118 mph)300 (3.0, 44)300 (3.0, 44)
Normal pressure:
190 km/h (118 mph)
or less
240 (2.4, 35)240 (2.4, 35)
ECO pressure *:
190 km/h (118 mph)
or less
270 (2.7, 39)270 (2.7, 39)
Wheel size17  7 1/2J
Wheel nut torque103 N

5568-1. Specifications
GS450h_300h_OM_OM30F92E_(EE)
Type B
Type C
Tire size235/45R18 94Y
Tire inflation
pressure
(Recommended
cold tire inflation
pressure)Vehicle speed
Front tire
kPa (kgf/cm 2
or
bar, psi)Rear tire
kPa (kgf/cm 2
or
bar, psi)
More than 220 km/h
(137 mph)300 (3.0, 44)300 (3.0, 44)
220 km/h (137 mph)
or less240 (2.4, 35)240 (2.4, 35)
Wheel size18  8J
Wheel nut torque103 N

557
8
8-1. Specifications
Vehicle specifications
GS450h_300h_OM_OM30F92E_(EE)
Type D
Compact spare tire (if equipped)
■When towing a trailer
Add 20.0 kPa (0.2 kgf/cm2
or bar, 3 psi) to the recommend ed tire inflation pressure and
drive at speeds below 100 km/h (62 mph).
Tire size235/40R19 96Y XL (front) and 265/35R19 94Y (rear)
Tire inflation
pressure
(Recommended
cold tire inflation
pressure)Vehicle speed
Front tire
kPa (kgf/cm 2
or
bar, psi)Rear tire
kPa (kgf/cm 2
or
bar, psi)
More than 220 km/h
(137 mph)300 (3.0, 44)300 (3.0, 44)
220 km/h (137 mph)
or less240 (2.4, 35)250 (2.5, 36)
Wheel size19  8J (235/40R19), 19  9J (265/35R19)
Wheel nut torque103 N

5588-1. Specifications
GS450h_300h_OM_OM30F92E_(EE)
Light bulbs
Light bulbsWType
ExteriorFront turn signal lights *21A
Outer foot lights5B
InteriorVanity lights8B
Trunk light3.8B
A: Wedge base bulbs (amber)
B: Wedge base bulbs (clear)* : Vehicles with single-beam headlights

559
8
8-1. Specifications
Vehicle specifications
GS450h_300h_OM_OM30F92E_(EE)
Fuel information
■Use of ethanol blended gasoline in a gasoline engine
Lexus allows the use of ethanol blended gasoline where the ethanol content is up to 10%.
Make sure that the ethanol blended gasoline to be used has a Research Octane Number
that follows the above.
■If your engine knocks
●Consult any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer.
●You may occasionally notice light knocking for a short time while accelerating or driv-
ing uphill. This is normal and there is no need for concern.
EU area:
You must only use unleaded gasoline conforming to European standard
EN228.
Select unleaded gasoline with a Rese arch Octane Number of 95 or higher
for optimum engine performance.
Except EU area:
You must only use unleaded gasoline.
Select unleaded gasoline with a Resear ch Octane Number of 95 or higher.

5608-1. Specifications
GS450h_300h_OM_OM30F92E_(EE)
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 cata lytic converter to lose its effectiveness
and the emission control system to function improperly.
●EU area: Bioethanol fuel sold under names such as “E50” or “E85” and fuel contain-
ing 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 retailer or
Lexus authorized repairer, or any reliable repairer.
●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 gaso-
line 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 retailer or Lexus authorized repairer, or any
reliable repairer.
●Do not use the methanol blended gasoline such as M15, M85, M100. The use of gas-
oline containing methanol may cause engine damage or failure.