【Car maintenance】In winter refueling, must I "add 200" or "fill up"?

According to the Wuwei Public Security Traffic Police:

Winter, like summer, you still can't fill up too much when refueling

"Go refuel in the winter

Is it better to fill it up or add $200? ”

For this question, Xiaobian would just like to say:

"Add as much as you want, this customer's freedom"

However, today I still have to answer the question for you

What is the difference between "full" and "plus 200"

Refueling should not be too full

Winter, like summer, still can't be too full. On the one hand, too much oil may overflow from the ventilation hole, creating a danger; on the other hand, too much oil can easily block the ventilation hole.

I don't know if you have ever experienced the situation that the car just finished refueling and can't catch fire or the car jumps at high speed? This may be too full of fuel tanks! Once the ventilation hole is blocked, negative pressure will be generated in the fuel tank, resulting in poor oil supply or even no oil supply.

In addition, too much oil can also pose a hazard to the carbon tank.

Carbon tanks are generally installed between the fuel tank and the engine. Gasoline is a volatile liquid, and there is often steam in the tank at room temperature. If the fuel is too full, gasoline instead of steam will enter the carbon tank, causing damage to the carbon tank.

How about "plus 200" every time?

"Since it is not good to add too much oil, it is not good to add 200 yuan each time." I heard that less oil can also save fuel, which can avoid the phenomenon of 'fuel consumption'~"

In fact, it is not reasonable to add 200 yuan each time.

First of all, the amount of refueling should not be calculated according to the amount of money, but should be calculated according to the size of the fuel tank. If it is calculated according to the amount of money, it also needs to be analyzed on a case-by-case basis. When the oil price is low, some models 200 yuan are almost full, and some models 200 yuan may have just been added to half a box.

Under normal circumstances, if the amount of oil is already low, then the oil that adds 200 yuan each time may be just over half of the fuel tank. Long-term lack of oil, easy to lead to overheating of the fuel tank, or even damage, usually have to frequently queue up at the gas station to refuel.

As for "fuel consumption", it is not much of significance for our ordinary family cars.

In general, the lightweight fuel saving standard of the car is: the car loses 100 kilograms of weight, and the fuel can be saved by about 0.5 liters per 100 kilometers. If only half a tank is added at a time in order to save fuel, the weight of those reduced can only save about 0.12 liters of fuel at most. The key is to add only half a box each time, which means that the number of trips to the gas station will be more, and the round-trip journey and the waiting time at the gas station will require fuel consumption.

The fuel gauge light is on and then go to refuel?

Some car owners believe that they must wait for the fuel meter lights to turn on and then refuel, so that the oil at the bottom of the fuel tank can be used up in time, and will not expire because it is always "left", which will damage the car engine.

This sounds like something, but it feels like something is wrong... In fact, although the tank structure of different models is different, most of the oil pumps are immersed in the bottom of the tank, and when the oil pump works, the oil pump inlet hole will start to pump oil from the bottom of the tank. The gasoline newly added to the tank will not always float on the top, but will be mixed with the remaining oil in the tank, so there is no situation where the oil in a certain area of the tank has not been used. If you must divide it into orders, the first oil to be used is also the oil closest to the pump.

For most vehicles, when the fuel gauge light is yellow, although there is still a certain amount of oil in the fuel tank, the oil level is lower than the oil pump, which will affect the heat dissipation of the oil pump, so it is recommended that everyone go to refuel when the pointer is a quarter of the fuel gauge.

In fact, the vehicle's manual indicates how many liters of fuel are left in the fuel tank after the fuel meter light is on, and some are also marked with how many kilometers can be traveled after the fuel meter light is lit.

According to the ordinary fuel consumption standard, when the fuel gauge light is on, the car can probably run about 50 to 90 kilometers. Therefore, when the fuel gauge light is on, everyone should not panic, it is best to keep driving at a uniform speed, minimize the number of brakes, go to the regular gas station as soon as possible to refuel, and do not take chances.