You should change your tires approximately every 6 years, regardless of mileage, because rubber compounds degrade over time, which can lead to cracking, reduced flexibility, and increased risk of blowouts

. However, tires can wear out sooner depending on driving habits, road conditions, and climate. Key factors to consider when deciding to replace tires include:

• Tire Age: Most manufacturers recommend replacing tires after 6 years, and never driving on tires older than 10 years

• Tread Depth: Tires are unsafe when tread depth is 2/32nds of an inch or less. You can check tread depth using tread wear indicators, a tread gauge, or the penny test (if you can see Lincoln’s head fully, it’s time to replace)

• Driving Conditions: Frequent high-speed driving, rough roads, or extreme temperatures can accelerate tire wear and aging, possibly requiring earlier replacement

• Tire Condition: Look for signs like cracks, brittleness, color fading, or damage to sidewalls

Additionally, regular tire rotations every 5,000 to 8,000 miles help ensure even wear and prolong tire life, but replacement is still necessary when age or tread wear criteria are met

. In summary, replace tires every 6 years or sooner if tread is worn below 2/32nds inch or if there are signs of damage or aging, and never use tires older than 10 years for safety