The car is the most contacted in daily life of the same means of transport, especially with the increase in the income level of mainland residents, coupled with the reduction of car manufacturing costs, now more and more families can afford to buy a car. In recent years, the level of per capita car ownership in the mainland has risen year by year, which shows that cars have entered thousands of households and become consumer goods that can be seen everywhere in people's daily lives.
However, no matter how the cost of the car falls, buying a car is also a big expense, so many people are more cherished after buying a car, and will do maintenance regularly, but most drivers have limited understanding of the car, usually only focus on the maintenance of the engine. It can be said that any part plays an important role in the safe driving of the car. The engine is called the soul of the car, and the importance is self-evident, but this does not mean that as long as the engine is normal, the problems of other parts can be ignored, and the tire is also an indispensable part of the car.
Tires are often overlooked by drivers, some think that the quality of the rubber is so good and not easy to damage, and some think that there are four tires anyway, and one of them will not affect the driving. There is no doubt that these ideas are wrong. Rubber has a big flaw, that is, it is easy to wear, so tires have a service life, if not driving will reduce the life of tires.
Each of the four tires plays an irreplaceable role, and any one of them may cause serious traffic safety accidents, so usually when the tire is changed, it is four tires that are replaced at the same time. The appearance of the tire does not look very conspicuous, coupled with a long time and ground contact, so it has been dirty, it is not easy to attract the attention of the driver, in fact, the tire surface has a lot of important information, this information every driver should have some understanding.
In the tire near the hub, there are usually some numbers and codes, if not insiders, do not understand the meaning of these symbols, take 225/45 R17 as an example to illustrate the meaning of each number. The first is 225, which represents the cross-sectional width of the tire, if it is a small bridge car, the cross-sectional width range is usually between 200 mm and 250 mm, if it is a sports car or SUV, this value will be larger.
The second number 45 is a percentage, representing 45%, and this ratio is derived from the width ratio thickness, that is, the width of the tire can be calculated from this value, that is, 101.25 mm. The last R17, R is an abbreviation of the English name "Radial Tire", the general tire is R, if it is a better tire, it will be marked ZR, 17 is the diameter of the hub.
From the decomposition information above, we can finally get a basic information about this tire, which is a radial tire with a hub diameter of 17 inches wide and 101.25 mm thick. In addition to the above information, there are some values that are also important and should not be ignored: MAX LOAD 630kg (1389 LBS), which means that the maximum load of the tire is 630 kg, and if it is exceeded, it is easy to puncture the tire. MAX PRESS 340kPa (50 PSI) indicates that the maximum tire pressure of the tire is 340kPa, which is a very important parameter of the tire.
When driving in daily life, it is necessary to develop the habit of detecting tire pressure, because once the tire pressure is unstable, the risk of tire failure will be very high. This information on the tire is very important, when the driver changes the tire, we must pay more attention and ask more, so that it will appear more professional, and it is not easy to be fooled. So in the daily driving process, how to avoid the occurrence of puncture accidents? It should be known that if you stop on the road with a flat tire, the harm is still relatively small, if a flat tire occurs on the highway, it is likely to cause a serious traffic safety accident.
To prevent a puncture, here are some practical methods. First of all, the tire pressure test, the tire pressure of the tire is very important, so the driver must check the tire pressure once every two weeks, this money must not be saved, especially before running high speed, more need to check, some cars have their own tire pressure detection function, but not accurate enough.
The second is to replace the tire regularly: some drivers think that the tire looks like no problem, there is no need to change the tire, do not know that the tire itself has a service life, once the service life is exceeded, the probability of failure will be greatly increased. Generally speaking, the service life of the tire is 3 to 5 years, 5 years is already the service limit of the tire, if the road conditions are not very good, the life of the tire will be reduced, and the time for changing the tire will be advanced.
Finally, when driving, we should pay attention to scientific driving and reduce tire wear. Sharp braking or drifting and other situations are very bad for tire wear, so be sure to avoid these behaviors when driving and drive smoothly. Tires, as parts that bear the weight of the entire car, play a very important role in the car, and the driver must pay attention to the use of tires and change the tires in time.