【Owner's home car knowledge】For most car owners, the spare tire may be one of the least commonly used items in the car, and because of this, when doing maintenance, the detection and maintenance of the spare tire are often ignored. As everyone knows, although the spare tire is not commonly used, it often plays an important role at critical moments. In this issue of Auto School, we will introduce some common sense of spare tire maintenance to car owners.
Regularly check for wear and tear
Under normal circumstances, during daily maintenance or before a long-distance trip, few car owners test the spare tire. Many car owners' spare tires are useless and difficult to use at critical moments. In fact, the role of the spare tire is crucial, especially for high-speed and long-distance driving.
Generally speaking, for the detection of spare tires, it is mainly to check the tire pressure and whether there are wear and cracks. Before the tread wears to the wear mark line, the tire should be replaced as soon as possible. If there are small cracks on the sidewall, it cannot be used for long-distance or high-speed driving, because the sidewall of the tire is thin, and it is prone to puncture when driving at high speed.
Tire pressure should be adjusted when using
【Owner's home car knowledge】For most car owners, the spare tire may be one of the least commonly used items in the car, and because of this, when doing maintenance, the detection and maintenance of the spare tire are often ignored. As everyone knows, although the spare tire is not commonly used, it often plays an important role at critical moments. In this issue of Auto School, we will introduce some common sense of spare tire maintenance to car owners.
Regularly check for wear and tear
Under normal circumstances, during daily maintenance or before a long-distance trip, few car owners test the spare tire. Many car owners' spare tires are useless and difficult to use at critical moments. In fact, the role of the spare tire is crucial, especially for high-speed and long-distance driving.
Generally speaking, for the detection of spare tires, it is mainly to check the tire pressure and whether there are wear and cracks. Before the tread wears to the wear mark line, the tire should be replaced as soon as possible. If there are small cracks on the sidewall, it cannot be used for long-distance or high-speed driving, because the sidewall of the tire is thin, and it is prone to puncture when driving at high speed.
Tire pressure should be adjusted when using
What needs to be reminded is that in order to ensure the shape and use of the spare tire during storage, the selection of air pressure is different from that of the common tire. Generally, the low pressure tire is between 2.0 and 2.5, while the spare tire is between 2.5 and 3.0. The air pressure of the spare tire is unqualified. Since the owner does not have an air pressure gauge, there is no way to adjust the air pressure. Therefore, after changing the spare tire, you should find a professional to adjust the air pressure before normal use. It is generally safe to hit the spare tire pressure to 2.7.
In addition, the spare tire should not be used instead of the regular tire for a long time. Since the spare tire is not used often, there is relatively little chance of friction with the ground. After replacing the spare tire, the four tires have different friction coefficients, different ground adhesion, and different air pressure. , Long-term use will have a certain impact on the braking system, steering system and suspension system of the vehicle, which will bring great hidden dangers to driving safety.
should be replaced regularly
Many car owners often encounter such a situation: the car wants to replace the spare tire after a puncture, but finds that the spare tire has been seriously aged after being placed for many years and has already become a waste tire. This is mainly because tires are rubber products, and they will age if they are stored for too long. Generally, the aging period of tires is about 4 years. Therefore, the spare tire should be replaced after 4 years.
At the same time, since the main component of tires is rubber, what rubber is most afraid of is the erosion of various oil products. Car owners often store lubricating oil and other oil products in the trunk. Once these oils get on the tires, they will bulge and corrode the tires, which will greatly reduce the service life of the tires. Therefore, try not to put oil products and spare tires together. If the tires are stained with oil, wash off the oil with a neutral detergent in time.
Tips: How to replace the spare tire?
1.Use a jack to support the car slightly, and loosen the fastening nuts of the wheels before the tires are off the ground.
2.After the fastening nut is unscrewed, continue to support the car with a jack, and after the tire is completely separated from the ground, the original tire is removed.
3.Install the spare wheel, and fasten all the fastening nuts evenly according to the order of the diagonal lines.
4.Lower the jack and the job of changing the tire is over.
Related recommended reading:
Frequent maintenance does not mean that you will maintain the problems that should be paid attention to in daily maintenance
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