Tire maintenance skills and the use of car tire maintenance common sense


1. Tire rotation "has many benefits"

Change the tire position every 10,000 kilometers to make the tire fatigue uniform, avoid eccentric wear, and extend tire life.

2. "Four Attention" of Driving Habits"

Prevent quick start, emergency braking or sharp turns; prevent hitting tartar on the road; prevent tartar riding on the road when parking; prevent quickly passing unpaved roads and bad roads.

3. Four-wheel positioning "need to remember"

It is advocated to detect once every two thousand kilometers; due to the change of the main parameters of shortening the four-wheel alignment, it is related to the abnormal wear of the car tires; after the car is overloaded or on a bad road, please go to a special shop for inspection; prevent the car tires from being the main four-wheel alignment Abnormal wear caused by parameter changes.

4. Tire pressure "needs to be carefully checked"

Check the air pressure of all tires including the spare tire at least once a month; please check the tire pressure before long-distance driving; if the tire pressure shortens too fast, please go to the local special store to find the reason.

5. Don't forget the tire dynamic balance.

When the body shakes or the steering wheel shakes during driving, please go to the special shop for inspection; after the car has gone through a bad road, please go to the special shop for inspection; when changing the tire or changing the tire position, the dynamic balance of the tire must be checked.

6. Tire life "very important"

If the depth of the tire groove is close to 1.6mm, it is recommended to replace the tire; if the tire has aging cracks, it is recommended to replace the tire.

Misunderstanding of tire maintenance

Myth 1: Wash your car as soon as you get back from your trip.

Some of my friends are "hard-working. As soon as the car gets home and stops, it needs to clean up the dust and dirt that sticks during the journey, which is not good for the tires. Since the tire is still hot just stopped, if it is washed with cold water immediately, it is easier to harden and age.

Misunderstanding two: tires can be used for ten years.

For most family cars, under comprehensive road conditions, the use and replacement time of tires can refer to two specifications: one is that the use time should not exceed 5 years; or the driving distance under comprehensive road conditions should not exceed 60000 kilometers. If friends often drive on unpaved roads, they should change tires earlier according to tire wear.

Myth 3: After changing tires, you can hit the road.

Some friends are quite frugal, and many items after changing tires can be saved. I think some items must be done after changing tires, such as dynamic balance and four-wheel positioning.

Dynamic balance is to adjust the weight balance of the tire. Most of them only need to "move" the tires, which are basically done. Because the wheel is composed of a tire and a hub, the mass distribution of each part after replacing the tire cannot be completely uniform. When the wheel rotates at a high speed, it will become a state of "dynamic imbalance" through development and change, causing the car to tremble and the steering wheel to shake.

In order to prevent this phenomenon, it is necessary to use a balancing machine to test the balance of the tire rim in the moving state after the tire is changed, and to ensure the balance of the edge parts of the wheel positioning by adding a counterweight at the unbalanced point.

Four-wheel alignment is to tell the geometric angles of tires, steering, suspension and other components to ensure that the tires are closely integrated with the ground. After changing the tires, four-wheel alignment should be done to avoid inaccurate positioning and excessive tire wear, which is related to the controllability and safety factor of the car.

Misunderstanding four: summer temperature rises, tire pressure energy is low, in order to avoid a flat tire.

As the driving distance increases, the tire temperature will increase. At this time, the tire pressure is higher than the tire pressure in the cold tire state. Many friends think that this will increase the risk of flat tire. I think that after driving for a period of time, the tire temperature will stabilize and the tire pressure will not continue to rise. If you deflate and decompress because you are worried about the risk of a puncture due to an increase in tire pressure, it will cause the tire carcass to deform during driving,

Some friends think that the spare tire is not on the road, so they don't need to change it and can save some money. I think tires are rubber products, so there will be rubber aging. The shelf life of rubber is mostly 4-5 years. After the shelf life, the rubber will accelerate aging and its performance will decline rapidly. Therefore, when replacing all tires in 5 years, it is best to replace the spare tire together.

Myth six: pet urine will corrode the tire.

There are many people who keep pets now. From time to time, a puppy pees next to the tire. This worries many friends and worries that the rubber of the tire will be corroded. I think this kind of worry is completely unnecessary. The urine of pets such as cats and dogs will not react with rubber, and the aging effect is minimal. The surface of the car wheel hub is basically treated with anti-corrosion, which is basically resistant to strong acid and alkali, not to mention the urine of a pet.

Myth 7: To change the tire, just replace the damaged one.

If the size, structure, and wear status of the four tires are inconsistent, it will affect the handling and stability of the car. Therefore, it is best to use the same brand and similar specifications for the four tires, so as to ensure the best performance of the car.

When a tire is worn and needs to be replaced, if one tire is in doubt, it is best to replace four tires at the same time. Even if it is not possible to replace all at once due to certain conditions, at least two tires on the same axle must be replaced at the same time. Every 10000 kilometers, the tires can be adjusted to avoid irregular tire wear, so the life of the tires will be extended.

Misunderstanding 8: The higher the tire pressure, the better, you can save fuel.

When the tire pressure of the car is insufficient, the tire sidewall will be over-lifted, which will easily lead to uneven tire wear and increased fuel consumption. Some friends think that the tire pressure can be raised a little, which can not only solve the problem, but also save fuel. However, if the tire is inflated too much, it will be more susceptible to external shocks and uneven wear. As the tire temperature rises, the tire pressure will further increase, and there will be a risk of puncture.

Misunderstanding 9: Ordinary cars can also use explosion-proof tires.

Some friends said that since the consequences of a flat tire are so serious, it would be a big mistake to directly replace the tire with an explosion-proof tire.

The scientific name of run-flat tires is "run-flat tires", which are optimized from ordinary tire sidewalls. Compared with the same period last year, the cars with run-flat tires are basically specially designed in the chassis, suspension, rim hump and other places. After changing the run-flat tires of ordinary cars, it will affect comfort and handling.

Misunderstanding 10: after washing the car brush tire oil can maintain the tire.

Many car washing shops will brush a layer of tire oil on the car tires for free after washing the car, claiming that the tires are dustproof and bright, and the tires can be maintained. Some friends are confused and hit. Rubber is soluble in grease solvents, and most of the tire oils used for car cleaning are of poor quality, which will corrode tires and wheels, increase tire wear, and affect tire life.