
A spare tire cannot be used for an extended period because there are significant differences between a spare tire and a regular tire. The vehicle is actually in an unbalanced state, and once the speed is too high, it can easily lead to delayed control, endangering driving safety. The spare tire should be replaced with the original factory tire promptly after emergency use. Below is additional information about spare tires: 1. A spare tire is for emergency use only, not for long-term driving. Regardless of whether the spare tire is wide or narrow, manufacturers have specific production and usage requirements. 2. If a spare tire is left hanging on the car for a long time without wear, it differs from a tire that has been worn out. Using a spare tire on the car inherently carries certain safety risks. 3. Due to differences in production time between the spare tire and the original tire, factors such as tire aging, hardening, lifespan, and deformation vary, making long-term use unsafe.

To be honest, I once used a spare tire for a long-distance trip just to save trouble, and it nearly caused an accident. Spare tires are simply not designed for prolonged use—they're either smaller in size with terrifyingly high pressure or made from different materials than regular tires, resulting in excessive vibration and traction so poor it's like driving on ice. Once, I drove less than 100 kilometers on the highway before feeling the car become unstable. When a mechanic checked it later, the tread was completely worn down, and he said the weak traction made it prone to blowouts. For safety, spare tires should only be used as a temporary emergency measure, and you should head to a repair shop to replace it with a proper tire as soon as possible. Never take chances—remember to adhere to the speed limit and don't exceed 80 mph. Prolonged use can even damage the suspension system, leading to costly and frustrating repairs. Better to err on the side of caution.

As a seasoned driver with over a decade of experience, I'm telling you, you absolutely cannot drive long distances on a spare tire. For example, last time I had a nail in my tire and used the compact spare for just two days of commuting—less than 50 kilometers—and I noticed strange steering feedback and slight body tilt. Upon inspection later, I even found scratches on the wheel rim. The reason is that spare tires don't match the car's specifications, wearing out ridiculously fast with reduced grip that makes skidding more likely, especially dangerous in rainy conditions. Generally, spare tires are made from thinner materials and aren't built for high mileage, with a designed lifespan of at most a few dozen to a hundred kilometers. My advice: use the spare only for emergencies, then head straight to a repair shop to get a new tire—it's worry-free and safer.

I commute by car every day and have seen plenty of spare tire situations. It's just a temporary substitute—fine for short distances, but not for long runs. The size doesn't match, making the ride uncomfortable and affecting balance. I recommend replacing it as soon as possible.


