See also:

Treadwear indicators
Narrow bars (tread wear bars) that are distributed over the tire tread. If the tire tread is level with the bars, the wear limit of 1/16 in (1.6 mm) has been reached. ...

Mounting a new wheel
WARNING Always replace wheel bolts that are damaged or rusted. Never apply oil or grease to wheel bolts. Damaged wheel hub threads should be repaired immediately. Do not continue to drive ...

Notes on selecting, mounting and replacing tires
• Only mount tires and wheels of the same type and make. • Only mount tires of the correct size onto the wheels. • After mounting new tires, run them in at moderate speeds for the first 60 miles ( ...