Lexus SC 430 2006 Owner's Manual page 233

4-3. Do-it-yourself maintenance
Recommended cold tire inflation pressure
Tire size
245/40R18 93Y
P245/40R18 93V
245/40ZR18
For sustained high speeds above 112 mph (180 km/h), in countries where such
speeds are permitted by law, add the below pressure to the front tires and rear
tires, but never exceed the maximum cold tire inflation pressure molded on the
tire sidewall.
• 12 psi (80 kPa, 0.8 kgf/cm
220
Inflation pressure psi (kPa, kgf/cm
Front
Rear
Front
Rear
Front
Rear
2
or bar)
2
or bar)
33 (230, 2.3)
33 (230, 2.3)
33 (230, 2.3)
33 (230, 2.3)
33 (230, 2.3)
33 (230, 2.3)