Can I replace just one tire?
3 Answers
It is not recommended to replace only one tire. If you need to replace a tire, you should at least replace both tires on the same axle. Tires are the only components of a car that come into direct contact with the ground, and they play a crucial role in the vehicle's driving stability and handling performance. Therefore, tires are extremely important for a car. As rubber products, tires will age over time and require regular replacement. New tires should be installed on the rear axle of the vehicle. If more worn tires are placed on the rear axle, their reduced water drainage capability can significantly increase the risk of oversteering in rainy conditions, potentially leading to dangerous situations like vehicle fishtailing.
Having driven for decades, I've seen many accidents caused by tire issues. Replacing just one tire may seem economical, but it carries significant risks. When the tread depth difference between new and old tires exceeds 3mm, grip becomes uneven; during high-speed driving or sharp turns, the vehicle tends to veer, and braking distances increase, leading to skidding. Especially on rainy or slippery roads, differing friction coefficients make loss of control more likely. The vehicle's four-wheel-drive system bears extra stress due to uneven rotation, potentially causing premature differential wear; suspension components also suffer accelerated wear from imbalanced forces. I always recommend checking all tires' remaining tread depth—using a professional gauge—if existing tires average over 6mm with minimal variation, single replacement might be acceptable. But safety first: adopt the habit of replacing tires in pairs on the same axle to ensure stable handling. Include rotation and pressure checks in regular maintenance to prevent imbalance hazards and preserve safe driving.
When I was younger, I also tried to save money by replacing just one tire, but the experience taught me it was a false economy. The new tire was expensive while the old one was nearing the end of its life, forcing me to spend again in a few months. The difference in tread depth caused imbalance, making turns unstable and increasing fuel consumption, ultimately shortening tire lifespan. Upon closer inspection, the suspension system suffered from uneven stress, leading to more frequent issues. The drivetrain also endured greater pressure, resulting in higher repair costs. Insurance or warranty claims might even be denied for non-compliance. A mechanic advised me to first measure the remaining tread depth, with a standard limit of a 3mm difference. If exceeded, replace both tires with the same model. Now, I look for promotions within my budget and replace two tires at once for better value. I’ve also developed a habit of checking tire pressure and wear quarterly to catch abnormalities early, saving both hassle and money.
