
Tire sidewall cracks may or may not require replacement depending on the situation: 1. If the cracks are minor and appear on the tire tread, they represent normal aging cracks or wear and do not require replacement; 2. If cracks appear on the tire sidewall, replacement is necessary to avoid potential blowouts; 3. If the cracks are excessively long or deep, reaching the standard tread depth of 1.6 millimeters, replacement is required. Tires are essential automotive components that serve multiple functions: 1. Supporting the vehicle's entire weight and bearing its load; 2. Transmitting traction and braking torque while maintaining road grip; 3. Absorbing vibrations and impacts during driving to ensure safe and stable operation.

Small cracks on the sidewall of a tire are no trivial matter, and I must remind you that safety comes first. The sidewall is the most vulnerable part of a tire, and even fine cracks can significantly increase the risk of a blowout due to rubber aging, prolonged sun exposure, or poor road conditions. With over thirty years of driving experience, I've seen numerous cases where neglecting these small cracks led to blowouts and accidents on highways. I strongly advise you to have it inspected by a professional immediately. If the cracks are deep or the tire is over five years old, it's best to replace it right away—don't try to save money by delaying. Whenever possible, park in shaded areas to slow down aging. Always remember, safety should always be the top priority—never gamble with luck.

As a budget-conscious car owner, I believe this issue depends on the actual situation. For small cracks, it's best to first evaluate the cost-benefit: if the tires are new or have been used for less than two years, and the cracks are very shallow, you can continue driving but check the tire pressure weekly to prevent further damage. However, if the tires are over five years old or the cracks have significantly deepened, it's definitely more cost-effective to replace them, as a blowout could lead to more expensive repairs and wasted time. I usually drive to a repair shop to have them test the depth and aging level before making a decision—don't replace tires blindly. Parking in shaded areas daily can extend their lifespan, saving money while ensuring safety—a win-win.

From my understanding of car structures, sidewall cracks on tires are usually caused by rubber oxidation or UV damage. Small cracks don't necessarily require immediate replacement - you should feel the depth and check for air leaks before deciding to continue using them. However, if the cracks are deep enough to fit a coin or show signs of air leakage, replace the tire immediately to ensure driving stability. The sidewall bears significant pressure, and aged tires can easily lose control during turns. I recommend checking the tire's manufacturing date - those older than five years should be replaced for peace of mind.


