How Long Can a Spare Tire Generally Last?
2 Answers
Spare tires can generally last for 4 years. Below is a related introduction to the types of spare tires: Full-size spare tire: The specifications of a full-size spare tire are exactly the same as the other four tires on the vehicle, allowing it to replace any one tire that is temporarily or permanently unusable. Non-full-size spare tire: The diameter and width of this type of spare tire are slightly smaller than the other four tires, so it can only be used as a temporary replacement and must be installed on non-driving wheels. Additionally, the maximum speed should not exceed 80 km/h. Run-flat tire: Run-flat tires are also known as safety tires, commonly referred to as "puncture-proof tires." The industry directly translates them as "tires that can run while flat."
As a veteran driver with over 30 years of experience, I've dealt with spare tires quite a bit. Essentially, they're emergency tools—once used, they should be replaced as soon as possible. They're generally designed to run for about 50 to 80 kilometers, with speeds not exceeding 80 km/h. If the spare tire hasn't been unpacked, it can last several years in the trunk without issues, but storing it for too long isn't safe either, as the rubber can age and become brittle due to sunlight or high temperatures. I recommend checking the tire pressure every three months; if it's low, top it up to ensure it's ready when needed. Don't slack off on repairing the original tire—driving too long on a spare can increase the risk of a blowout, given its thinner material and lower load capacity. In short, a spare tire is a temporary lifesaver, not a permanent solution—safety first.
