
Subject One spare tire cannot be used as a normal tire. Here are the relevant details: Spare tire: It is actually for emergency use, not for long-term use. Regardless of width, manufacturers have specific production and usage requirements for spare tires. Since spare tires are not used regularly on the vehicle and have no wear, a tire without wear is different from one that is heavily worn. Using a spare tire on the vehicle inherently carries certain safety risks. Spare tire inspection: Mainly involves checking tire pressure, wear, and cracks. Tires should be replaced before the tread wears down to the wear indicator line. If there are fine cracks on the tire sidewall, it should not be used for long-distance or high-speed driving, as the sidewall is thinner and more prone to blowouts at high speeds.

I did learn this in the written test - a spare tire should never be used as a regular tire for long-term use. As a driver with ten years of experience, I deeply understand that a spare is only a temporary solution for emergencies. It's usually not full-sized, made with less durable materials, and has speed limitations - most can't exceed 80 km/h or they may overheat and burst, especially dangerous on highways. Moreover, prolonged use causes uneven wear that could damage the suspension system. I once had a friend who lazily used a spare for several days, lost control due to road bumps, and ended up paying hefty repair bills. Safety first - the driving test emphasizes replacing it with a proper tire promptly, so never treat a spare as a regular tire just to save trouble.

Hey, I just passed the theory test (Subject 1) and know this question well! The spare tire is absolutely not meant for normal use—it's just a temporary solution. Its maximum speed is only about 80 km/h, and the material is quite fragile. Driving on it for extended periods will definitely cause problems. The Subject 1 textbook clearly states that after installing the spare tire, you must immediately go to an auto repair shop to replace it with a regular tire. Otherwise, it violates traffic regulations and is dangerous. The spare tire might be a different size, causing the car body to tilt while driving, which can easily lead to loss of control or a blowout. I was terrified when I experienced this during my driving practice. Tire-related checks also can't be overlooked—for example, the spare tire's air pressure needs to be higher. So, using a spare tire long-term is just asking for trouble. Replace it as soon as possible for peace of mind.

As a mom who frequently shuttles kids around, I'm particularly concerned about vehicle safety. Never use a spare tire as a regular one. It's only suitable for short-term emergency use - made with inferior materials and poor wear resistance. Prolonged driving may cause it to go flat or even blow out, which could lead to unthinkable consequences. I always teach my family to check tire pressure regularly and visit a repair shop immediately after installing the spare. Spare tires are usually smaller in size, causing noticeable vibration and discomfort while driving, plus increased fuel consumption. Remember, maintaining your regular tires properly can help avoid emergencies.

A spare tire must never be used as a regular tire, and the reasoning behind this is clear: it is typically a temporary product with a simplified design, speed-limited to within 80 km/h. Prolonged use can lead to accelerated tread wear, pressure imbalance, and may cause tire separation or blowouts. More importantly, the grip of a spare tire does not match that of a normal tire, making it prone to instability during high-speed turns. It is recommended to address the issue within 24 hours after installation and to regularly check whether the stored spare tire has expired. These details are all critical to driving safety.


