When you need new tires for your vehicle, come to the home of the world’s best tires: Sun City Tire & Auto. We are a Goodyear and Michelin tire dealer for new tire sales. Our auto techs are ASE Certified, and we provide quality work at reasonable prices. When you bring your vehicle in for service, one of the things we do is to check the tires. The way a tire wears can tell us many things.

Tire Wear Patterns

If we notice certain wear patterns on your tires, we’ll recommend the repairs needed – if any – to keep you safe and extend the life of your vehicle’s tires.

  • When the tires are wearing only in the center, the air pressure is too high. We’ll adjust the tire pressure.
  • When the tires are wearing evenly on the outside edges, the air pressure is too low. We’ll adjust the tire pressure.
  • If the tires are wearing on one side of the tire only, the problem is in the suspension or alignment. We’ll look for the problem and let you know what you need.

Checking the Tire Tread Depth

If your vehicle’s tires are wearing properly, you can check them yourself to determine if it’s time to replace them. The tires have a bar between the treads. If the tread is even with the bar, it’s time to replace the tires. You can also check using the penny test or the quarter test.

Insert a penny with Lincoln’s head facing you and the top of his head in the tread. The tread depth is less than 2/32 of an inch if you can see all of Lincoln’s head, and it’s time to replace the tires. You can also use a quarter. Insert it the same way – with Washington’s head facing you and the top of his head in the tread. If the tread just touches the top of Washington’s head, you have 4/32 of an inch left and should consider replacing your tires as soon as possible.

Tire Repairs at Sun City Tire & Auto in Surprise Az. mechanic in khaki pants bending down servicing tire on vehicle with sunbeam in the background

Tire Pressure

You can find the correct tire pressure on the sidewall of the tire. It varies from vehicle to vehicle based on the tire and the vehicle. You’ll find it listed as a pound-per-square-inch (p.s.i.) reading. Most passenger car tires use 35 p.s.i., and trucks range from 40 p.s.i. to 80 p.s.i.

When putting air in the tires, keep in mind that when the air warms up from the friction on the road, the tire pressure increases. When you air up the tires, if you put 32 p.s.i. in, they’ll have 35 p.s.i. once they warm up.

You can also change the air out to nitrogen, which doesn’t fluctuate with temperature. Once you change to nitrogen, you need to air the tires up with nitrogen. If you add air, you’ll defeat the purpose. It won’t hurt the tire – you’ll just have to start all over again if you want only nitrogen in the tires.

Contact Sun City Tire & Auto

When it’s time for new tires, call us, stop by, or use our online scheduling app to schedule an appointment for new tires for your vehicle. Though we stock many popular sizes, it’s better to call ahead to make sure we have the tire you need in stock.