ACCREDITATION FOR GRADUATE MEDICAL EDUCATION
Properly inflate all four tires, plus your spare, to the vehicle manufacturer's recommended levels. Tires can lose up to 1 pound of air pressure per square inch per month. Use an accurate tire gauge to check tire air pressure monthly and only do it when the car is cool - meaning when it has been driven less than 1 mile or has not moved in at least three hours.
To check the tires' tread, perform this simple test in several areas of the tire: Place a U.S. penny into a tread groove with Lincoln's head facing down. If you can see the top of Lincoln's head, the tire should be replaced.