See also:

Tire Quality Grading
Department of Transportation quality grades - All passenger vehicle tires must conform to Federal motor vehicle Safety Standards in addition to these grades. These quality grades are molded on the ...

Tire Terminology and Definitions
Air Pressure: The amount of air inside the tire pressing outward on the tire. Air pressure is expressed in pounds per square inch (psi) or kilopascal (kPa). Accessory Weight: This means the combine ...

Checking the Battery
WARNING: Batteries can be dangerous! When working with batteries, carefully observe the following precautions to avoid serious injuries. The fluid in the battery contains a strong solution of su ...