Page 521 of 586
520
6-1. Specifications
IS F_U■
Engine number
The engine number is stamped on the engine block as shown.
Page 522 of 586
521
6-1. Specifications
6
Vehicle specifications
IS F_U
Engine
Fuel
Model2UR-GSE
Ty p e8-cylinder V type, 4-cycle, gasoline
Bore and stroke3.70 × 3.52 in. (94.0 × 89.5 mm)
Displacement303.2 cu. in. (4969 cm3)
Drive belt tensionAutomatic adjustment
Fuel typeUnleaded gasoline only
Octane rating91 (Research octane number 96) or higher
Fuel tank capacity
(Reference)16.9 gal. (64 L, 14.0 Imp. gal.)
Page 523 of 586
522
6-1. Specifications
IS F_U
Lubrication system
*: The engine oil capacity is a reference quantity to be used when exchanging.
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 follow-
ing grade and viscosity.
Oil grade: ILSAC GF-5 multigrade engine oil
Recommended viscosity: SAE 5W-30
SAE 5W-30 is the best choice for
good fuel economy and good
starting in cold weather.
If SAE 5W-30 is not available,
SAE 10W-30 oil may be used.
However, it should be replaced
with SAE 5W-30 at the next oil
change.
Oil capacity
(Drain and refill
reference
*)
without filter8.7 qt. (8.2 L, 7.2 Imp. qt.)
with filter 9.8 qt. (9.3 L, 8.2 Imp. qt.)
Outside temperature
Page 524 of 586

523
6-1. Specifications
6
Vehicle specifications
IS F_U
Oil viscosity (5W-30 is explained here as an example):
• The 5W in 5W-30 indicates the characteristic of the oil which allows coldstartability. 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 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 conditions.
How to read oil container label:
The ILSAC (International Lubricant Standardization and Approval Com-
mittee) Certification Mark is added to some oil containers to help you
select the oil you should use.
Cooling system
Capacity12.6 qt. (11.9 L, 10.5 Imp. qt.)
Coolant type
Use either of the following.
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based non-sili-cate, non-amine, non-nitrite, and non-borate cool-
ant with long-life hybrid organic acid technology
Do not use plain water alone.
Page 525 of 586
524
6-1. Specifications
IS F_U
Ignition system
Electrical system
Differential
*: Your Lexus vehicle is filled with “Toyota Genuine Differential Gear Oil” at the
factory. Use Lexus approved “Toyota Genuine Differential Gear Oil” or an
equivalent oil of matching quality that satisfies the above specifications. Please
contact your Lexus dealer for further details.
Spark plug
Make
GapDENSO FK20HBR11
0.043 in. (1.1 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust gap when tuning the engine.
Battery
Open voltage* at
68 °F (20 °C):12.6 12.8 V Fully charged
12.2
12.4 V Half charged
11.8
12.0 V Discharged
(*: Voltage checked 20 minutes after
the engine and all the lights are turned
off)
Charging rates5 A max.
Oil capacity1.42 qt. (1.35 L, 1.19 Imp. qt.)
Oil type and viscosity*“Toyota Genuine Differential Gear Oil
LX 75W-85 GL-5” or equivalent
Page 526 of 586
525
6-1. Specifications
6
Vehicle specifications
IS F_U
Automatic transmission
*: The fluid capacity is provided as a reference. If replacement is necessary, con-
tact your Lexus dealer.
Fluid capacity*11.6 qt. (11.0 L, 9.7 Imp. qt.)
Fluid typeTo y o t a G e n u i n e AT F W S
NOTICE
Using automatic transmission fluid other than “Toyota Genuine ATF WS” may cause
deterioration in shift quality, locking up of your transmission accompanied by vibra-
tion, and ultimately damage the automatic transmission of your vehicle.
Page 527 of 586
526
6-1. Specifications
IS F_U
Brakes
*1: Minimum pedal clearance when depressed with a force of 110 lbf (490 N, 50
kgf) while the engine is running.
*2: Parking brake pedal travel when depressed with a force of 67.4 lbf (300 N,30.6 kgf).
Pe d a l c l e a r a n c e *14.3 in. (110 mm) Min.
Pedal free play0.04 0.08 in. (1.0 2.0 mm)
Brake pad wear limit0.04 in. (1.0 mm)
Parking brake lining wear limit0.04 in. (1.0 mm)
Parking brake pedal travel *27 9 clicks
Fluid typeSAE J1703 or FMVSS No.116 DOT 3
Page 528 of 586
527
6-1. Specifications
6
Vehicle specifications
IS F_U
Steering
Tires and wheels
Free playLess than 1.2 in. (30 mm)
Ti r e s i z e
Front: 225/40R19 93Y
Rear: 255/ 35R19 96Y
Spare: T135/70R18 103M
Front and rear tire inflation pres-
sure
(Recommended cold tire inflation
pressure)
Front:
36 psi (250 kPa, 2.5 kgf/cm2 or bar)*
Rear:
36 psi (250 kPa, 2.5 kgf/cm
2 or bar)*
Spare:
60 psi (420 kPa, 4.2 kgf/cm
2 or bar)
*: When driving at high speeds above 100 mph
(160 km/h), in countries where such speeds
are permitted by law, add 9.0 psi (60 kPa, 0.6
kgf/cm
2 or bar) to the front tires and rear tires.
Never exceed the maximum cold tire inflation
pressure indicated on the tire sidewall.
Wheel size
Ty p e A
Front wheels: 19 × 8J
Rear wheels: 19 × 9J
Spare wheel: 18 × 4T
Ty p e B
Front wheels: 19 × 8 1 /2J
Rear wheels: 19 × 9 1 /2J
Spare wheel: 18 × 4T
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)