Subaru Impreza Manuals 2017 Impreza Owner's Manual | Page 432

12-8 Specifications/Specifications & Electrical system Battery type 75D23L Alternator 12V-130A DILKAR7B8 (NGK) Spark plugs & Tires Tire size Wheel size Pressure P205/55R16 89V 205/50R17 89V 16 6 6 1 / 2 J 17 6 7 J P225/40R18 88V 18 6 7 1 / 2 J 2 Front 33 psi (230 kPa, 2.3 kgf/cm ) Rear 32 psi (220 kPa, 2.2 kgf/cm 2 ) Wheel nut tightening torque 89 lbf·ft (120 N·m, 12 kgf·m)* 1 *1: This torque is equivalent to applying approximately 88 to 110 lbf (40 to 50 kgf) at the end of the wheel nut wrench. If you have tightened the wheel nuts by yourself, have the tightening torque checked at the nearest automotive service facility as soon as possible. For the wheel nut tightening procedure, refer to “Changing a flat tire” F9-6.