Many experts, including Tire Rack and SimpleTire , recommend replacing tires at 4/32" , especially if you drive in wet or snowy conditions where traction drops significantly below this point. Quick DIY Tests
Tread depth is the primary indicator of a tire's health. New tires typically start with of tread. when to buy new tires
Tires degrade over time due to environmental exposure, regardless of how much tread is left. How to Buy Tires: A Step-by-Step Guide - US News Cars Many experts, including Tire Rack and SimpleTire ,
This is the legal minimum in most regions. If your tread is this low, you must replace your tires immediately. including Tire Rack and SimpleTire