See also:

PSI (pounds per square inch)
A standard unit of measure for tire pressure. ...

Aspect ratio
Relationship between tire height and tire width in percent. ...

Switching the windshield wipers on/off
WARNING Wiper blades are components that are subject to wear and tear. Replace the wiper blades twice a year, preferably in the spring and fall. Otherwise the windshield will not be wiped pr ...