As the saying goes, "it is easy to buy a car and it is difficult to maintain a car", now it is indeed much easier to buy a car than before, not only the price of the car has come down, but also through the installment payment to avoid the pressure of full payment. However, the corresponding cost of car maintenance is much higher, especially the fuel cost, before it was only 3-4 yuan a liter, now even 92 is more than 7 yuan, plus a box of oil how to spend a few hundred yuan bills, it is true that some of the impact on life.
Friends who often drive may find that after filling up the oil, they find that the first half of the tank of oil is used more slowly, commonly known as "burn-resistant", once the pointer falls below one-half, it feels that the pointer falls off particularly fast, which makes people feel a little confused. Is it really an illusion? Let's analyze it today.
The second half of the pointer falls faster is not an illusion, because the shape of the fuel tank on the car is not the cylinder or box we imagine, the shape is irregular, and in order to reduce the encroachment on the chassis space, it is usually the upper half is wider, and the lower half will be slightly narrower, after all, the car chassis has other components such as frame, exhaust structure, etc. If the fuel tank design is as large as the top and bottom, it will hinder the placement of the chassis components.
In addition to the difference in the shape of the fuel tank, the temperature is also one of the influencing factors, because the gasoline will be heated and expanded, just like gas, the cold car state is fine, once a distance is opened, the temperature inside the tank will rise, the density of the gasoline will change, the liquid level will also rise, and the information measured by the sensor will also become "inflated". It's like looking at the pointer in the upper half before going home to park, and after one night, the next day you will find out how the pointer runs to the bottom half? This also creates sensory illusions.
In addition, there is a certain spare volume in the fuel tank, which is not calculated into the actual tank volume and will not be detected by the oil sensor. So even if it is not 100% filled, the meter pointer will still reach the top. Generally speaking, most people will add fuel to the top, and even see the gasoline inside from the filling port, although the pointer is the same as the top, but this part of the excess volume is not counted. The most intuitive feeling is to open a distance to find that the pointer is still in place, which feels like no oil.
The last point is "endurance anxiety", the word is now more used in electric vehicle users, in fact, it is also applicable to fuel vehicle users, but the emotion is not so strong, after all, finding a gas station is much simpler than finding a charging pile. Just like the usual use of mobile phones, if the power is above 60%, you will not feel panic, the game continues to play, the video continues to watch, once to 30% or even to 20%, power saving mode, off data, brightness reduction and other methods will be used.
Therefore, combining the above factors, many friends will feel that the upper half of the tank of oil is particularly "resistant to burning", coupled with the people around them, what they did not realize before will be more and more like to hear, and gradually spread to the surroundings.