Why Can't a Car Spare Tire Be Used for a Long Time?
2 Answers
If a spare tire is used for an extended period, its safety performance will significantly decline. Therefore, spare tires should not be used long-term, and their performance is inherently inferior to that of the original tires. It is essential to regularly inspect the spare tire in daily life. Below is relevant information about car spare tires: 1. Car spare tires are divided into two types: full-size spare tires and non-full-size spare tires. A full-size spare tire matches the size of the car's original tire, while a non-full-size spare tire is smaller than the original. However, both types of spare tires share one important consideration: neither may be as wide as the original tire, nor may their performance match that of the original. Thus, there are limitations to using spare tires. 2. Generally, inspections of spare tires mainly focus on checking tire pressure, wear, and cracks. Tires should be replaced before the tread wear reaches the wear indicator line. If there are fine cracks on the tire sidewall, the tire should not be used for long-distance or high-speed driving, as the sidewall is thinner and more prone to blowouts at high speeds.
As someone who often talks about cars with friends, I have to say that spare tires aren't meant for long-term use mainly due to design and safety reasons. Most spare tires are one size smaller than regular tires, like a temporary substitute for a small-sized player, which can cause imbalance in the car if driven for extended periods. Imagine one side of the car being higher than the other, leading to drifting or skidding during turns, especially dangerous in rainy weather. The materials used in spare tires aren't designed for durability either; driving at high speeds can cause them to overheat and age quickly, significantly increasing the risk of a blowout. This can also affect other components, such as the suspension system suffering from uneven stress, leading to costly repairs. I remember a car owner who used a spare tire for several days—not only did fuel consumption skyrocket, but they later had to spend thousands fixing issues with the chassis. Spare tires usually have a speed limit of 80 km/h or less; exceeding this can lead to accidents. My advice is to plan a trip to the repair shop as soon as you start using a spare tire and not to delay it overnight.