2007 Lexus IS 250 Owners Manual - Page 404

6-1. Specifications Type E Tire size Front tires: 225/40R18 88Y Rear tires: 255/40R18 95Y Spare tire: T145/70R17 106M Driving under normal conditions Front tires: 35 psi (240 kPa, 2.4 kgf/cm2 or bar) Rear tires: Front and rear tire inflation pres38 psi (260 kPa, 2.6 kgf/cm2 or bar) sure Driving at high speeds above 100 mph (160 (Recommended cold tire inflation km/h) (in countries where such speeds are perpressure) mitted by law) Add 7.2 psi (50 kPa, 0.5 kgf/cm2 or bar) to the front tires and rear tires. Never exceed the maximum cold tire inflation pressure indicated on the tire sidewall. Spare tire inflation pressure (Recommended cold tire inflation 60 psi (420 kPa, 4.2 kgf/cm2 or bar) pressure) Wheel size Wheel nut torque Front wheels: 18 × 8J Rear wheels: 18 ×8 1/2J Spare wheel: 17 × 4T 76 ft•lbf (103 N•m, 10.5 kgf•m) 6 Vehicle specifications 393