To what extent do car tires need to be replaced?

The depth of the remaining grooves in the tire pattern is at or below millimeters. Car tires have a lifespan of four years or 80,000 kilometers, whichever comes first.

If there is a breakage, more than 5 places, it needs to be replaced in advance, and if there is a side breakage, 1 place needs to be replaced. If you often walk on roads that are not in good condition, the tires are severely worn and need to be replaced in advance.

The tires should not be used in the following situations:

1) If the tires have been worn; The tires have tire tread wear indication markings, which are slightly raised tread wear indication markings located at the bottom of the tread tread groove with a height of millimeters (the legal minimum groove depth). If the tread rubber tread block wears down to the same height as these raised markings, the tires should be replaced immediately, as it is no longer safe to continue driving.

2) If the tire has been damaged; Hitting a shoulder, getting into a pothole, or inserting a nail can cause serious damage to a tire. Damaged tires are likely to be repaired, but only a professional repair shop is qualified to accurately tell if a tire can be repaired or can only be replaced with a new one. Generally, the side damage cannot be repaired, and the tires can only be replaced for safety.

3) If the tire has been aged; If you find that the tread is deformed or cracked, stop using these tires immediately and promptly ask a professional repair shop to inspect them to determine whether the tires can continue to be used.

4) If the tires have been bulging; Tire bulge is a high incidence factor of puncture, especially on the highway, which is very dangerous, and the tire bulge should be replaced in time.

One. The middle pattern of the tire is smoothed, which means that the tire pressure is too high. This can be the case with particularly wide tires.

If the tire has been hit with nitrogen, it is generally rarely ground in the middle, but if the air has been played, the water removal of the compressor is not good, and there is too much moisture in the air, and it is easy to have intermediate grinding.

Two. One side is smoothed, the other side is fine. Typical eccentric grinding.

In this case, there is a problem with the four-wheel alignment data, mainly because there is a problem with the toe-in, and it should be noted that it is not only the front wheel, but also the toe-in. Both the front and rear wheels have toe-in.

When the tires are eccentric, you can ventilate or redo the wheel alignment according to the situation.

Generally, tires can be considered for replacement when they run to 5-60,000 kilometers, and there is a wear cordon on the tires, I hope mine will help you. Look at the picture:

When the tire pattern is worn to the limit, it needs to be replaced, the tire has been used for 6 years, even if the tire pattern is not worn to the limit, it needs to be replaced, the tread or side of the tire is seriously damaged, or the tire has more than 3 patches, and the tire surface is seriously eccentric.

The aging of tires has a great relationship with the environment, and the normal service life is about 6 years. And the harsh environment will accelerate this deadline. If you find that the tire has such a situation, then even if it is not 6 years, you must replace the tire as soon as possible, otherwise it will easily cause the consequences of a large puncture.

Tire wear precautions.

In order to reduce tire wear, the correct way to drive is to start driving, not too violent, so that the car starts slowly, smoothly and naturally without shaking, so as to avoid accelerated tread wear due to tire and ground dragging.

The correct way to drive downhill is to control the appropriate speed according to the size and length of the slope and the road surface. At the same time, keep a safe distance of more than 50 meters from the vehicle in front of you and drive on the right. When going uphill and downhill, you should use a low speed to pass, especially uphill, and you should pass in one go to avoid stopping halfway.

How many kilometers.

1. When the tire is worn to the wear limit mark, it must be stopped (that is, the tread depth is less than mm).

2. Tire aging (physical inspection and confirmation).

3. Tires with deformed tread or bead damage, tires damaged by sidewall crushed due to airless driving, and tires corroded by chemicals shall not continue to be used.

4. Bulging tires shall not continue to be used.

5. If other damage affects the safety of the tire, it shall not be used continuously.

The following are the four situations in which car tires need to be replaced: 1. Serious tread wear generally There will be wear marks in the middle of the tread, and the thickness of the wear mark is 2mm, if the thickness of the tire is worn to 4mm away from the limit mark (that is, 6mm from the deepest part of the groove), the tire should be replaced. 2. The number of tire repairs is too frequent, in addition to wear, the tire is punctured by sharp objects is also the main reason for the tire life, if the tire repair method is appropriate, one or two tire repairs are not very affecting the driving, but if the tire repair times are more than three times, you need to pay attention, because no matter how tight the tire repair is, there will always be a gap between the original material, so that in the case of high-speed and high-temperature driving, the temperature in the tire will still occur after the temperature rises, and the danger of puncture will still occur.

3. The aging of rubber itself is a material that is easy to age under the influence of external light, heat, moisture and other factors, slowly cracking, hardening, becoming fragile, and finally completely losing its use value, so don't think that the car does not need to replace the tire if it is not opened for a long time, if the storage environment is relatively bad, the tire will slowly not be used. 4. Flat tires, bulges, and broken tires also need to be replaced.

Here's how you can tell if a tire needs to be replaced

Point 1: If the tire is aging (for example, there are countless small cracks in the tread groove or sidewall that are about to hurt the carcass), the tire needs to be replaced in time, regardless of how long the tire has been used and how much it has been worn.

The second point: if the depth of the groove left in the tire pattern is at or below millimeters (there is an indicator mark indicating this depth in the groove of the longitudinal straight bar of the tire tread), the tire must be replaced, because the drainage capacity of the tire has been greatly reduced, and the vehicle will be more dangerous to drive in wetlands.

For example, although the tire can still be inflated after being crushed by the lack of air, it is recommended to replace the tire with a new tire in time because the internal structure of the tire may have been damaged. In particular, it should be reminded that bulging tires should not be used any longer.

The tread is more than 3 mm.

The first is to look at the tire wear, there is a grind to the safety line, to the safety line to replace it, followed by to look at the time, the number of kilometers of friends may be 6 years of tire pattern is still very good, but 6 years is a long time, considering the aging of the rubber should also be replaced.