See also:

Tread Wear Indicators
Tread wear indicators are in the original equipment tires to help you in determining when your tires should be replaced. 1 — Worn Tire 2 — New Tire These indicators are molded into the botto ...

Tires
Examine tires for excessive tread wear and uneven wear patterns. Check for stones, nails, glass, or other objects lodged in the tread or sidewall. Inspect the tread for cuts and cracks. Inspect ...

Exhaust Gas
WARNING! Exhaust gases can injure or kill. They contain carbon monoxide (CO), which is colorless and odorless. Breathing it can make you unconscious and can eventually poison you. To avoid brea ...