Overinflation or underinflation will cause your tires to wear unevenly. Chalk and tires aren’t two things that go normally together unless you’re thinking about that ever-watchful meter maid who just marked your car to be ticketed in the next 30 minutes. There is a reason why you would want to chalk your own tires though–to test your tire pressure. This method of checking tire pressure, called the chalk test, demonstrates if your tire is bulging from too much pressure or if it is slightly concave from a lack of pressure.
Things You’ll Need
Car, Chalk, Straight edge