Can tires with small cracks still be driven on highways?
2 Answers
Tires with cracks should not be driven on highways. For safety reasons, it is recommended to replace the tires before driving on highways. The following is an introduction to tire cracks: Impact of driving on highways with cracked tires: Cracks on tires indicate that the tires are severely aged and cannot withstand prolonged high-speed driving, increasing the risk of accidents on highways. Tire mileage and age: Generally, the service life of tires is 5-6 years, with a mileage of 70,000-80,000 kilometers. However, it should be noted that the lifespan is determined by whichever comes first—mileage or age. Even if the car is not driven frequently, the rubber can harden and become brittle, increasing the risk of a blowout.
I've worked in an auto repair shop for many years and often deal with tire issues. Small cracks may seem insignificant, but they pose significant risks when driving on highways, mainly due to the high speed, elevated temperatures, and increased tire pressure that can cause the cracks to spread. If you notice cracks on the sidewall or a pattern resembling alligator skin on the surface, it's likely due to rubber aging or prolonged exposure to sunlight. Generally, tires older than 5 years or with over 60,000 kilometers are prone to this. I strongly advise against taking the risk on highways—head to a repair shop for a free inspection to determine the crack depth. If the cracks are shallow, you might get by driving slowly in the city temporarily, but it's best to replace the tire. Safety comes first; blowouts on highways are not uncommon, and the repair costs far outweigh spending a few hundred dollars on a new tire in advance.
