Check Your Tires with a Coin
If you’re not sure whether it’s time to replace your vehicle’s tires, the penny test can help you decide. The depth of a tire’s tread is measured. The better the tire, the deeper its tread.
If you want to see whether your tires are still viable, grab a penny and turn it upside down, so Lincoln’s head is facing the ground. Then test the depth of the tread by dipping the penny into it. The tires are still viable if Lincoln’s forehead goes over the tread. It’s time to replace them if not!