How do I know if my tire tread is good?

First, grab your quarter. Insert it in the space between your tire tread, with George Washington’s head facing down. If your tread surpasses the top his head, you are above 4/32 of an inch and are in good shape. Once the tread comes flush with the top of Washington’s head, that means you are at 4/32 of an inch.

Should I replace all 4 tires?

It’s always best to replace all 4 tires at the same time. This is because all 4 tires spin independently of one another, and different tread depths and/or styles can cause them to spin at different speeds. That could potentially damage the drive train, and possibly affect an indirect TPMS system if the vehicle has one.

All 4 tires. Different tread depths. The vehicle.

Do I need to replace all four tires at once?: Most of the cars on the road today are front-wheel-drive, and a few are rear-wheel drive. These don’t necessarily need to have all four tires replaced at once. Usually two at a time is sufficient. But all-wheel-drive systems are becoming more popular, and they do require all four tires to be replaced at one time.
Can you replace all 4 tires on a 2017 SUV?: Replacing all four will always be the safest and most recommended option, but the reality is that sometimes that simply is not possible. This exact scenario happened to one of us when we were forced to find a replacement for the original tires on a 2017 SUV.
What happens if you put 4 tires in a car?: A vehicle with four tires that behave the same way when it comes to braking, accelerating, or cornering is predictable and balanced. The performance will be unbalanced and traction characteristics will vary if any of those factors are different at one or more wheels. Can You Replace Just One Tire If It’s Damaged?
When should you change your tires?: The Surprising Answer Let’s face it: most vehicle owners don’t ever think about their tires until they get a flat, their mechanic tells them they have a problem, or some whisper in the back of their head tells them it’s time to replace one or more of them (check out our post on how to know when to change your tires).