When should car tires be replaced and when do tires need to be replaced

Here are five situations where a tire needs to be replaced:

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 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 health of the tires can easily be overlooked by the majority of riders. Tires are needed for vehicle driving, acceleration, and line changes. Therefore, tires are related to the driving safety of vehicles.

According to the test, the braking distance between the new and old tires is meters! So, under what circumstances will there be a difference between the old and new tires?

In general, 4-80,000 km, 5 years.

Changing the tires according to the number of kilometers or years will do. Depending on the number of kilometers, it depends on the road surface. The road conditions are not good, about 40,000 kilometers, and you can change the tires once. If the road surface is good, about 80,000 kilometers, you need to change the tires.

If the vehicle doesn't drive much, the tires should be replaced every five years or so. The wear of tires and shallower lines has a direct impact on braking distance and steering efficiency!

If these symptoms occur, the tires must be replaced promptly.

Slip. If driving at a speed of 100kmh, the new and old tires are driving on roads with different dry and wet conditions, and the braking distance is generally 7-10 meters apart! When braking, there will be left and right shaking and unstable rental. If the speed is too fast, there is a high chance of side skidding!

During the acceleration phase, when the throttle is activated, the vehicle with poor tire quality will also spin from left to right!

If the tires are in good condition, the vehicle will pass the test even if the road conditions are not as good as X!

Sound. The condition of the tires is directly reflected in the sound of the tires. There is no small difference in the sound between the old and new tires.

When driving a used tire, the sound decibel is about 76 decibels. The new blind tires are around 67 decibels. The condition of the tires can be judged by the decibels and whether they need to be replaced!

Tire maintenance tips.

1.First of all, ensure the tire pressure. Exam every Monday! Values are based on the parameters specified by the manufacturer. (It's when the tires are cold, that is, they haven't been driven before the test!) )

2.Avoid sharp obstacles. Pits, steps, protruding manhole covers. These obstacles can cause the wires inside the tires to break, causing bulging. Once a bulge appears, it is not recommended to continue using it!

3.If the vehicle is mistracked, shaken, or wobbly, the tires should be checked in time. It is recommended not to drive 10,000 kilometers for inspection, be prepared!

4.Be aware of the environment when parking and try not to expose your tires to too many chemicals. Acidity, alkalinity, etc. In addition, long-term parking should choose a shady place to avoid exposure to the sun!

Millions of car purchase subsidies.

Generally, the life of tires is 3 to 5 years, and it is recommended to replace tires in about 3 years; There is also a more important indicator of tires is the degree of wear, how to see the degree of wear? There is a safety block in the middle of the tire pattern, if the tire is worn to the point that it is almost flush with the safety block, then it means that the tire needs to be replaced.

When there is a relatively small gap in the car tire, many drivers will send it to the 4S shop to repair it, and then continue to use it after the repair. If there are one or two holes, it's okay to fix them and then continue to use them, but if there are three or four holes in the tires of the car that have been repaired many times, they must be replaced. Even if this tire is used for the time being, it will not be as effective as before under extreme load, and it is likely to break down on the way, so it must be replaced as soon as possible.

When the tires of the car bulge, the tires must be replaced immediately. If you continue to drive with your tires bulging, your tires will shake very much during driving, and you may even burst your tires, which is very dangerous. There are two reasons why car tires bulge, the first reason is that the tire is seriously deformed under the huge impact force, and the internal pressure of the tire increases, which will cause the tire sidewall cord to break, thus forming a bulge.

Another reason is that the quality of the car tires themselves is unqualified, so it will cause bulging.

Photo by Lei Peng) @2019

In general, if you have good driving habits.

There is no problem with 50,000 yuan for general comfortable or silent tires, 3 years in the tropics, and 4-5 years in other regions.

And those tires that emphasize wear resistance, such as Goodyear that I used before, when I opened more than 80,000 kilometers, I estimated that the tread could be used for 100,000 kilometers. But because it was 3 years old, it was replaced.

A little off-topic.

You can also look at the wear coefficient of the tire.

The same Goodyear mentioned earlier, with a wear resistance index of 280, which is a multiple of the standard tire. According to the information I found at the time (I can't find it), the standard tire at that time was 48,000 kilometers of life. So this Goodyear tire can run more than 100,000 kilometers.

What's interesting is that when I went to change the tire, the salesperson told me, boss, you don't need to change this, and you should consider changing it if it is more than 100,000 yuan.

But I just checked the ** on the US side.

The wear coefficient is based on a standard tire comparison test.

For example, standard tires can run 50,000 kilometers, and compared tires can run 100,000, the wear coefficient can be marked 200

However, U.S. law does not stipulate that tire manufacturers have the obligation to label the wear coefficient on the tire, but only stipulates that the tire manufacturer cannot falsely label the wear factor.

So now we see a lot of tires that don't have such a thing as wear coefficient.

For example, I don't have the Firestone T series and Michelin on hand. And the wear resistance mark is not fixed. Because standard tires are not fixed, they are constantly changing. The standard tire life may have been 10,000 at the earliest, but now it may be 50,000, and the wear resistance index is also changing.

So, looking at the wear marks is another way. There will be a small triangle on the side, and the tread must be replaced when it grinds to the **. However, generally I still recommend 50,000 to -80,000 kilometers, depending on the type of tire you choose, or no more than 5 years. as a standard for replacement.

The replacement time is generally not dead qualitative. According to the driving conditions and driving habits of the vehicle, the degree of wear and service life are different. Generally, if there is no bulge, cracks, and hard injuries, you can judge whether you need to replace a new tire according to the depth of the tread, and it is recommended that you replace a new tire when there are two or three millimeters left, so as not to leave potential safety hazards!!

Generally speaking, there is no quality problem with the tire tread depth below that is about to be replaced.

If there is a quality problem, such as a bulge, an exposure mouth, then it should be replaced immediately.

The tires are more grinding, and the other is bulging, which generally needs to be replaced after about 30,000 kilometers, and the better ones can be used for a longer time.

If you drive in the city, it will be replaced in about 8-100,000 kilometers, and in the countryside, it will be slightly earlier

It depends on the wear and tear of the pattern, and there is no specific time for this.

Generally up to that point.

The bulge is also to be changed.

Replace when there are serious cracks or severe wear.

Tire replacement details:

1. When the tire is worn to the wear limit mark, it must be stopped, and the tread depth is less than millimeters.

You can buy a gauge to measure the thickness of the tread pattern, or you can use a one-dollar coin and insert it into the tread groove along the top of the coat of arms, because the distance from the edge of the coin to the top of the coat of arms is between 1 and 2 mm, so if you can still see the entire logo at this time, it means that the thickness of the tread pattern is insufficient.

2. If the tire is seriously aged, it needs to be replaced. Generally, the shelf life of tires is three years, and the rate of natural aging is not the same as the speed at which they are installed in the car.

3. Tires with deformed tread or bead damage, tires damaged by sidewall crushed due to airless driving, and tires corroded by chemicals shall not be used any longer. The sidewall of the tire is the most vulnerable part, and if it is wounded, it is very dangerous even after repair. If there are visible cracks and cuts on the sidewall of the tire, there is a possibility of air leakage cracks in the future, and in the worst case, it can cause a puncture.

The role of tires:

Automobile tires are one of the important parts of the car, which is in direct contact with the road surface, and the car suspension works together to alleviate the impact of the car when driving, and ensure that the car has good ride comfort and driving smoothness; Ensure that the wheels and the road surface have good adhesion; Improve the traction, braking and passability of the car; Bearing the weight of the car, the important role played by tires in the car is becoming more and more important.

Depending on the shelf life of the tire: the sidewall of the tyre will have a four-digit number indicating the date the tyre was manufactured, with the first two representing the number of weeks and the last two representing the year. The use of tires should generally not exceed 3 years, and the mileage should not exceed 60,000 kilometers.

While a little over the years and mileage doesn't hurt the big picture, the cold temperatures in the winter and the rain in the summer can stretch the wet grip and dry handling of the tires. Pay more attention to the sidewall: As the tire rubber gradually ages, the sidewall of the tire will appear to be deeply wrinkled.

However, as long as the sidewall of the tire has not been hit and the cord has not been broken, it can continue to be used. The triangular logo on the sidewall of the tire can help the owner find a protrusion in the groove of the crown of the tire, which can determine the actual wear limit of the tire, which should be greater than millimeters.

Choose the right tires correctly.

Car tires: can be divided into ordinary car tires, station wagon tires and sports tires. Ordinary car tires will focus on comfort, reduced energy consumption and improved durability; Station wagon tires tend to increase the weight and durability of the tire; Sports tires are more focused on handling.

Off-road tires: can be divided into high-speed tires, mud tires and comprehensive tires. High-speed tires are suitable for paved road driving, but the sidewall support is slightly weaker; Dirt tires have a deeper tread pattern and are suitable for driving on unpaved roads, but the fuel consumption of the vehicle will be slightly higher; Comprehensive tires have the advantages of both, and eliminate the disadvantages of both, but both have made concessions.

Tire change according to usage.

If you're choosing tires for the average family car, consider Michelin's EnergyXM1, Bridgestone Turanzatr80 or Goodyear Eaglenct 5, three tyres that focus on road comfort. If you are changing tires for off-road vehicles, we recommend the A T tires of Breluchi, which take into account the comfort of road driving and the handling of non-paved roads.

10,000 kilometers of replacement is suitable for balance transposition.

Guys are there, teach you a business to change the tire tricks, for example, when you want the customer's car to drive over and leak to make up, you see if his pattern is smoothed, whether there is aging, and his production date, and he is flattened, there is a circle of marks on the side, but you have to remove the tire first and then tell the customer, otherwise he will try his best to say that the tire is okay or something and walk away, and when you change the tire, you say that the tire is not expensive, just a few hundred dollars, Porsche, BMW are changed to this, It is said that this kind of tire is good to use what quality and so on, if you hit him ** he said it is not his own car or something, you first fill the hole, and wait for others to come and you will tell him on the line.

Finally, I wish you all a prosperous business and a wide range of financial resources.

1.Wear is severe, and the tread grooves of each tire are marked with a wear limit, and it is recommended to replace the tire when the wear thickness reaches 6mm from the deepest part of the groove.

2.If the aging is serious, cracks on the surface of the tire are common, it should be replaced; Frequent tire repairs, the same tire is repeatedly punctured, and the tire should be replaced if the tire is repaired more than three times.

3.If this is the case, be sure to replace the tire, and replace the tire when the sidewall is punctured.

4. It needs to be replaced after about 5 years of daily use.

Car owners often do not pay attention to the condition of the tires when driving, but the condition of the tires is often related to driving safety, therefore, car owners need to pay attention to the condition of the tires in order to replace them in time. So how often do you need to change your tires? In fact, there are certain skills that can be followed, so let's listen to the introduction.

Hello, friend. As a car, the most susceptible place to wear and tear must be the tires. As a long-term contact with the ground components, if it is used frequently, its replacement basis can be based on the safety line in the drainage groove pattern of the car tire, if the tire has been worn to the safety line range, it must be replaced.

As a rubber product, tires will also age over time, and problems such as cracks or slow gas can occur. If the car is not used frequently, it needs to be replaced after three to four years, even if it has not been worn to the safety line. In addition, do not ignore the daily maintenance of tires, choose a regular authorized store or 4S store when choosing tires, and do not buy retreaded tires.

1.Cars that travel frequently can be based on the safety line in the tire drain groove pattern, and if the tire wears out of the safety line, it must be replaced.

2.However, tires will deteriorate with time and environmental factors, and cars that are not used frequently need to be replaced even if they are not worn out to the safety line after 3-4 years.

3.Don't forget the daily maintenance of tires, and choose a regular authorized store or 4S store when choosing.

Car tires have a life span like people, and when car tires are used for up to three to five years, they must also be replaced, because their service life has arrived, even if it can still be used, but its bearing capacity is not as good as before.