See also:

Blocking wheels
Place suitable blocks 1 at both the front and back of the wheel diagonally opposite the flat tire 2 to prevent the vehicle from moving when it is jacked up. WARNING Be sure to block the wheel a ...

Uniform tire quality grading
DOT (Department of Transportation) Quality Grades: All passenger car tires must conform to federal safety requirements in addition to these grades. Quality grades can be found where applicable on ...

Three-way catalyst
The three-way catalyst is an emission control device installed in the exhaust system. Exhaust gases in the three-way catalyst are burned at high temperatures to help reduce pollutants. WARNING &# ...