How often should SUV tires be replaced?

[Pinto]

SUV tires generally need to be replaced every 3 to 4 years or after driving 50,000 to 80,000 kilometers. Below are the criteria for determining when to replace car tires: Tire tread wear level: There are tread depth indicators in the tire grooves, approximately 1.6mm high. When the tread wears down to the level of these indicators, the tires should be replaced. Under normal usage, tires typically last about 50,000 to 80,000 kilometers. Once this mileage is reached, owners should have their tires inspected. Observe the aging of the tire surface: The aging of the tire surface is closely related to the duration of use and the operating environment. Harsh conditions or prolonged inactivity can accelerate tire aging, which manifests as extensive cracking on the tread and sidewalls. Once cracks appear, the tires should be replaced as soon as possible, even if they haven't reached their normal lifespan, as cracked tires significantly increase the risk of blowouts at high speeds. Damage to the tire sidewall or bulging: Under normal driving conditions, the sidewalls are rarely damaged. However, some drivers may scrape the sidewalls while parking or overcoming obstacles. If the sidewall is damaged, the tire cannot be repaired and must be replaced. Bulging indicates that the fabric or metal reinforcement layers in the sidewall have broken, posing an imminent risk of blowout, necessitating immediate replacement. Excessive tire repairs: Vehicles operating in poor conditions are more prone to punctures. It is not advisable to repair the same tire too many times. Generally, if a tire has been repaired more than three times, it is recommended to replace it, as excessive patches significantly increase the risk of failure during use.

[LeCarlos]

When it comes to replacing SUV tires, you can't just rely on time alone. Having driven for over a decade, I believe a comprehensive approach is necessary. Tires themselves have wear indicators—those small raised blocks in the grooves. If they’re worn flat, it means the grip is compromised, and replacement is a must. Mileage also serves as a useful reference. For those who mostly drive on city roads, replacement is typically needed around 50,000 to 60,000 kilometers. But in my case, since I often drive on rural or muddy roads, the tires wear out severely before even hitting 40,000 kilometers. If you notice cracks or bulges on the sidewalls, immediate replacement is non-negotiable. Don’t overlook rubber aging either—even if you drive sparingly, tires older than five years should be checked for elasticity and hardness. During car washes, you can quickly check by inserting a coin into the tread grooves. If the national emblem is fully visible, it’s time to prepare for a tire change. Safety should always come first.

[VanMatthew]

With elderly and children in the family often riding in the car, I pay special attention to tires. It's recommended to check the tread depth every six months using a specialized gauge or even a key to measure the grooves—remaining tread less than 1.6mm is dangerous. The tire sidewall displays the manufacturing date; locate the last four digits of the DOT code to determine the year. Even if the tread appears deep, tires over five years old should be monitored for aging and cracking. In summer, avoid parking in direct sunlight as UV rays can make rubber brittle. During emergency braking, excessively worn tires may skid an additional dozen meters, a distance sufficient to cause an accident. Regularly monitor tire pressure, checking monthly, as abnormal pressure can lead to uneven wear.

[VonKimberly]

As a budget-conscious car owner, I never skimp on tires. To extend tire lifespan, maintenance habits are key: Regularly rotating front and rear tires ensures even wear—just do it every 8,000 km. Maintaining proper tire pressure is crucial; check standard values on door frames or manuals. Overinflation wears the center, while underinflation wears the edges. I replace tires patched over three times to avoid slow leaks increasing fuel consumption. During promotions, I try new brands—all-terrain tires outlast highway tires. Remember to replace tires on the same axle simultaneously; mixing old and new tires may cause alignment issues.

[ODaniella]

Tire lifespan is closely related to its structure. The tread has wear indicator lines - once worn to this point, water drainage performance declines. The sidewall rubber layer is thinnest; scraping against curbs easily causes bulges. Check the DOT number on the tire sidewall for production date, e.g., 3723 means the 37th week of 2023. Tires stored over 3 years will oxidize and harden even if unused. Slightly adjust tire pressure seasonally - in summer when ground temperatures are high, I reduce by 0.1-0.2 standard pressure to minimize expansion wear. If you notice uneven tire wear or vehicle pulling, 80% chance you need wheel alignment, otherwise new tires will wear out quickly.