If you regularly inspect your tires, you can avoid flat tires and identify steering problems. Use a depth gauge to measure the tread depth and replace the tires. Cupped wear occurs when tires are misaligned or unbalanced. Also, look out for cuts, punctures, or slow leaks and ensure that the valve core is properly tightened. Look at the tire on the inside for brake fluid leakage. Also, pressure should be checked with a gauge against cold tires compared to what is recommended on a placard mounted on all vehicles.