Prior to entering vehicle check tire pressure using recommended psi located in the door jam of the vehicle. Use a tire pressure gauge to check your psi. If your psi is above the number listed on your door jam, let air out until it matches. If below, add air (or have a retailer help you) until it reaches the proper number.
You may also measure tread depth using the penny test. Once every month, or before you embark upon a long road trip, check your tires for wear and damage problems. One easy way to check for wear is by using the penny test.
- Take a penny and hold Abraham Lincoln’s body between your thumb and forefinger.
- Select a point on your tire where the tread appears the lowest and place Lincoln’s head into one of the grooves.
- If any part of Lincoln’s head is covered by the tread, you’re driving with the legal and safe amount of tread. If your tread gets below that (approximately 2/32 of an inch), your car’s ability to grip the road in adverse conditions is greatly reduced.