Can the front and rear tires of a car be swapped at will? | Car "rumor" crusher

Nowadays, cars play an indispensable role in our lives. With the rise and development of things, "rumors" also arise.

Have you ever heard some "rumors" about cars but don't know whether they are true or not?

The car "rumor" crusher will decipher the truth behind the "rumors" for you one by one. Please take a look at the content of this issue.

01- Ethanol gasoline has a shelf life of only one month

Rumor: Some people say that the shelf life of ethanol gasoline is only one month, and it will go bad after one month. If you continue to use it, it will damage your car.

The truth: The above statement is a rumor ! Ethanol gasoline is no different from ordinary gasoline in terms of use . Ethanol gasoline refers to a new generation of clean and environmentally friendly automotive fuel that is mixed by a specific process by a designated automotive ethanol gasoline blending center in accordance with the quality requirements of the national standard GB18351-2004, with a certain proportion (temporarily set at 10%) of denatured fuel ethanol added by volume to a special gasoline component oil (blending oil produced by refineries or petrochemical plants for blending automotive ethanol gasoline) that does not contain MTBE oxygen-containing additives. The adjustment of energy structure and the reduction of environmental pollution have promoted the development of ethanol fuel.

Judging from the finished oil sold at gas stations, they are all transported from refineries by tanker trucks. The "deterioration" in the rumors is actually a stratification phenomenon caused by improper handling during the production and transportation process, which is an inevitable problem. In fact, the moisture content of the upper layer of gasoline has decreased, while the moisture content of the lower layer has increased. This is because ethanol has a very strong water absorption capacity after mixing with water. Since ethanol gasoline is exposed to the air during transportation, it will absorb moisture from the air by itself, and when it reaches a certain level, the above phenomena will occur.

But in fact, the refinery has data. Ethanol gasoline itself has a water content of 3%, so when the storage temperature is between -5℃ and 10℃, it will not stratify for more than 30 days. In order to prevent ethanol gasoline from absorbing water and stratifying, the refinery will strictly control the process during production and storage and transportation to prevent ethanol gasoline from contacting with the atmosphere and water.

02- I would rather have higher tire pressure than lower tire pressure

Rumor: Some people believe that by inflating the tire pressure higher, they can overload the vehicle and save fuel.

The truth: The above statement is a rumor! Because the tire pressure is too high, the contact area between the tire and the ground will be reduced, the adhesion coefficient will be reduced, the braking effect will also be worse, and in serious cases, a tire blowout will occur. In rainy weather or on icy and snowy roads, the tire side slip will increase, which will cause great harm to driving safety. Of course, too low tire pressure is not good either, as it will cause tire shoulder wear, tire folding, and increased fuel consumption.

Therefore, the tire pressure of a car should not be too high or too low. When inflating the tire, it should be inflated according to the standard pressure value specified on the tire.

03- The front and rear tires of the car can be swapped at will

Rumor : One of the items you often see during vehicle maintenance is "tire rotation". The front and rear tires of any car model can be swapped.

The truth: The above statement is inaccurate ! Swapping the front and rear tires is not absolute. It mainly depends on whether the original tread and width of the front and rear tires are consistent. If they are the same, they can be swapped after driving a certain mileage. If the tread and width are different, they cannot be swapped, which will affect the driving safety of the vehicle.

The main purpose of tire swapping is to extend the service life of the vehicle tires, especially for most front-wheel drive vehicles. The front wheels, as driving wheels and steering wheels, are severely worn. In order to extend the service life of the tires, the front and rear tires can be swapped. If the size and pattern of the four tires designed by the vehicle are the same, the front and rear wheels can be swapped in the same direction, the left front wheel for the left rear wheel, and the right front wheel for the right rear wheel. However, some rear-wheel drive vehicles, performance vehicles, and off-road vehicles cannot be swapped at will if the width or pattern of the front and rear tires are different.

04- You can avoid punishment by putting someone else's ticket on your own car

Myth : Some people believe that if they put someone else's ticket on their own car, the traffic police will not issue another ticket to the vehicle that has already been ticketed, and they can thus evade punishment.

The truth : The above statement is a rumor! In fact, this kind of behavior of replacing the pillars with the beams is just a cover-up, and you may pay a more serious price for it.

First of all, the supervision area of ​​each road section is under the charge of a fixed traffic police. Therefore, in the same period and on the same road section, the traffic police have a clear impression of which cars have been ticketed and which have not. Generally speaking, when encountering a vehicle with a parking ticket, the traffic police will not ignore it just because there is a ticket on the car. Instead, they will more carefully check the vehicle license plate, penalty date and other information indicated on the ticket. Therefore, it is not feasible to rely on this "little cleverness" to get away with it. What's more, there is the "invisible guardian" of the electronic police. They work around the clock, recording the data of each vehicle, and any suspicious behavior cannot escape their "eyes".

Not only that, the car owner who tore off the ticket from other car and put it on his own car has been suspected of obstructing the police in the performance of their duties.

Therefore, car owners, putting someone else's ticket on your own car will not only fail to evade punishment, but may also violate the law. When you are out, parking properly is the right choice.

Has this issue of the car "rumor" crusher helped you debunk some "rumors" that you didn't know were true or false before? If you have any rumors that you want to verify, please leave them in the comment section. Let's seek the scientific truth together!

The picture comes from the Internet