specifications Lexus IS250 2010 User Guide

522
6-1. Specifications
IS350/250_U
Lubrication system
■ 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 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.
IS250IS350
Oil capacity
Drain and refill
(Reference)
without filter
2WD models
AWD models
6.2 qt. (5.9 L, 5.2 Imp. qt.)
6.3 qt. (6.0 L, 5.3 Imp. qt.)6.2 qt. (5.9 L, 5.2 Imp. qt.)
with filter
2WD models
AWD models
6.6 qt. (6.3 L, 5.5 Imp. qt.)
6.8 qt. (6.4 L, 5.7 Imp. qt.)6.6 qt. (6.3 L, 5.5 Imp. qt.)
Outside temperature

523
6-1. Specifications
6
Vehicle specifications
IS350/250_U
The 5W portion of the oil viscosity rating indicates a characteristic of the oil
which allows cold startability. Oils with a lower value before the W allow for eas-
ier starting of the engine in cold weather.
The 30 in 5W-30 indicates the oil viscosity when the oil is at its operating tem-
perature. An oil with a higher viscosity may be better suited if the vehicle is oper-
ated 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.

524
6-1. Specifications
IS350/250_U
Cooling system
Ignition system
Capacity9.6 q t .
(9.1 L, 8.0 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.
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.

525
6-1. Specifications
6
Vehicle specifications
IS350/250_U
Electrical system
DifferentialFront
Rear
*: “Toyota Genuine Differential Gear Oil” is filled in your Lexus vehicle at the fac- tory. Use Lexus approved “Toyota Genuine Differential Gear Oil” or an equiv-
alent of matching quality to satisfy the above specification. Please contact your
Lexus dealer for further details.
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 capacity0.74 qt. (0.70 L, 0.61 Imp. qt.)
Oil typeHypoid gear oil API GL-5
Oil viscosityAbove -18 °C (0 °F): SAE90
Below -18° C (0°F): SAE80W or SAE80W-90
Oil capacity
IS350:
1.42 qt. (1.35 L, 1.19 Imp. qt.)
IS250:
1.20 qt. (1.15 L, 1.01 Imp. qt.)
Oil type and viscosity*“Toyota Genuine Differential Gear Oil LT 75W-85
GL-5” or equivalent

526
6-1. Specifications
IS350/250_U
Automatic Transmission
*: The fluid capacity is provided as a reference. If replacement is necessary, con-
tact your Lexus dealer.
Manual Transmission
Clutch
IS350IS250 (2WD)IS250 (AWD)
Fluid capacity*8.3 qt.
(7.9 L, 6.9 Imp. qt.)7.9 q t .
(7.5 L, 6.5 Imp. qt.)9.9 q t.
(9.4 L, 8.2 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.
Gear oil capacity1.9 qt. (1.8 L, 1.6 Imp. qt.)
Gear oil typeAPI GL-5
Recommended gear oil viscositySAE75W-90
NOTICE
Using manual transmission gear oil other than “TOYOTA Genuine Manual
Transmission Gear Oil API GL-5” may cause occurrence of gear noise or other dete-
rioration.
Clutch free play0.2  0.6 in. (5  15 mm)
Fluid typeSAE J1703 or FMVSS No.116 DOT 3

527
6-1. Specifications
6
Vehicle specifications
IS350/250_U
Brakes
*1: Minimum pedal clearance when depressed with a force of 110 lbf (490 N, 50kgf) while the engine is running.
*2: Parking brake pedal travel when depressed with a force of 67.4 lbf (300 N,30.6 kgf).
*3: Parking brake lever travel when pulled up with a force of 45.0 lbf (200 N, 20.4kgf ).
Pe d a l c l e a r a n c e *1
IS 350
IS 250
Manual transmission
Automatic transmission4.13 in. (105 mm) Min.
4.09 in. (104 mm) Min.
4.3 in. (108 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 *2/
lever travel
*3
Pe d a l t y p e
Lever type7  9 clicks
5
 7 clicks
Fluid typeSAE J1703 or FMVSS No. 116 DOT 3

528
6-1. Specifications
IS350/250_U
Steering
Tires and wheels
■ Tires and wheels (except for compact spare)
Type A
Free playLess than 1.2 in. (30 mm)
Ti r e s i z e205/55R16 89W
Front and rear tire inflation pres-
sure
(Recommended cold tire inflation
pressure)
Driving under normal conditions
Front:
35 psi (240 kPa, 2.4 kgf/cm
2 or bar)*
Rear:
38 psi (260 kPa, 2.6 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 5.8 psi (40 kPa, 0.4 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 size16 × 7JJ
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)

529
6-1. Specifications
6
Vehicle specifications
IS350/250_UTy p e B
Ty p e C
Ti r e s i z e225/45R17 90W, 245/45R17 95W
Front and rear tire inflation pres-
sure
(Recommended cold tire inflation
pressure)
Driving under normal conditions
Front:
35 psi (240 kPa, 2.4 kgf/cm
2 or bar)*
Rear:
38 psi (260 kPa, 2.6 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 4.5 psi (30 kPa, 0.3 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 size17 × 8J
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Ti r e s i z e225/45R17 91V
Front and rear tire inflation pres-
sure
(Recommended cold tire inflation
pressure)
Driving under normal conditions
Front:
35 psi (240 kPa, 2.4 kgf/cm
2 or bar)*
Rear:
38 psi (260 kPa, 2.6 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 7.2 psi (50 kPa, 0.5 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 size17 × 8J
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)

530
6-1. Specifications
IS350/250_U Type D
Ti r e s i z eFront tires: 225/45R17 91V
Rear tires: 245/45R17 95V
Front and rear tire inflation pres-
sure
(Recommended cold tire inflation
pressure)
Driving under normal conditions
Front:
35 psi (240 kPa, 2.4 kgf/cm
2 or bar)*
Rear:
38 psi (260 kPa, 2.6 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 10 psi (70 kPa, 0.7 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 size17 × 8J
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)

531
6-1. Specifications
6
Vehicle specifications
IS350/250_UTy p e E
Ti r e s i z eFront tires: 225/40R18 88Y
Rear tires: 255/40R18 95Y
Front and rear tire inflation pres-
sure
(Recommended cold tire inflation
pressure)
Driving under normal conditions
Front:
35 psi (240 kPa, 2.4 kgf/cm
2 or bar)*
Rear:
38 psi (260 kPa, 2.6 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 7.2 psi (50 kPa, 0.5 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 sizeFront wheels: 18 × 8J
Rear wheels: 18 × 8 1 /2J
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)