Spare tires are different from four-wheel tires. Compared with the tires in use, the spare tire ages much slower. This is because the spare tire is not used for many years, so it rarely receives sunlight, so ultraviolet rays are harmful to the tire. The aging effect of rubber will be much smaller, so the actual service life of the spare tire is longer than that of four-wheel tires. Non-full-size spare tires have speed limits and are not used often, so replacement is of little use. If you feel uneasy, just replace it every 6 years.
When you use a car, you should try to pay attention to the details. Don't be afraid of ten thousand, just be afraid of the unexpected. Many drivers don't even know where their spare tires are. It is recommended that you read the manual after buying a car. Just know how to drive. If you don't know how to use the car's equipment, it's quite a waste. Today let's talk about non-full-size spare tires and full-size spare tires.
Non-full-size spare tire
The non-full-size spare tire is light in weight and small in size and does not occupy the trunk space.
The reduced weight of a non-full-size spare tire means less fuel consumption and more power. Non-full-size spare tires are smaller than ordinary ones, so they do not take up too much space in the back and also reduce costs. This factor will also be taken into consideration when designing the car space. Car spare tires are generally placed in the trunk of the car. Down.
Non-full-size spare tires also have many restrictions after replacement. Non-full-size tires cannot be used as regular tires. Their speed limit is generally 80km/h, and their load mass is also very small. It is best not to put them on steering wheels. A non-full-size spare tire can help you drive your car to a repair shop if a tire breaks down.
Full size spare tire
Full-size spare tires are the same as ordinary tires. If you are not running long distances for a long time, there is no need to equip full-size tires. The main reason is that full-size tires take up more space. On the other hand, full-size tires also have a shelf life and require regular maintenance and inspection. Tire pressure.
The most important thing is to replace the tightening torque of the tire bolts. If the wheels are replaced by yourself, the specified torque is often not reached, and accidents may occur if the vehicle is driven for a long time. The cost of full-size spare tires is relatively high, which will also increase the cost of purchasing a car.
Some cars are not equipped with spare tires. For example, most of the tires of BMW cars are run-flat tires. Even if they are deflated, they can drive a long distance at a low speed of 80km/h. At least you can ensure that you find a repair shop. The effect is the same as that of a spare tire. Same.