Which is better, "full" or "plus 200"? Does it affect the car?

Which is better, "full" or "plus 200"? Does it affect the car?

If you just ask me, I'd say it's better to fill it up, because my BYD F0 can't hold 200 yuan's oil at all, and basically 150 yuan can fill it up. If you add another 200 yuan, it will be wasted. Haha, just kidding, get down to business.

Car owners generally believe that it is best not to fill up the car with gas, otherwise it will be bad for the car, but no one can tell what is wrong.

Let's talk about the "disadvantages" of filling the tank first.

(1) Increased fuel consumption

(2) The fuel overflows and blocks the carbon canister.

(3) Negative pressure affecting the fuel tank

(4) affect the life of the oil pump.

The above points are the concerns of many people. Let's talk about how much impact it has in combination with these points.

1. Increased fuel consumption

Now car companies are advocating lightweight design. The car loses one kilogram and runs ten kilometers more. Although it is exaggerated, the influence of vehicle weight on fuel consumption is still obvious.

The fuel tank of an ordinary family car is generally around 50L, and there is 5-8L capacity at the bottom of the fuel tank after the indicator light is on. According to the current gasoline price of Sinopec, 200 yuan is about 35L. Generally speaking, after adding 200 yuan, the fuel tank should still have a capacity of about 40L, accounting for about 80% of the fuel tank.

From this point of view, even if it is full, it is more than ten liters of gasoline, about twenty kilograms, which is not as heavy as three or four-year-old children, and has little impact on vehicle fuel consumption. On the contrary, some car owners like to put some water and sundries in the trunk. If they think that more than ten kilograms of oil will affect fuel consumption, it is better to clean the trunk.

Adding 10L less fuel means running 100KM less, which will increase the number of trips to and from the gas station. Generally, gas stations will be located in sparsely populated suburbs, and counting the round-trip time, it is not worth the loss.

2. Fuel overflows and blocks the carbon canister.

Carbon canister is one of the indispensable parts in automobile design, and many people don't know its function. Gasoline itself is a volatile substance. When we drive on a bumpy road after filling up with oil, the concentration of oil-gas mixture in the fuel tank will increase. In order to prevent the pressure of the fuel tank from rising, a pipeline is arranged at the top of the fuel tank to connect with the carbon tank, so that the activated carbon in the carbon tank will absorb the gasoline component in the mixed gas and discharge the air out of the car.

When the vehicle is started, the car will send a part of the carbon canister into the intake manifold through the opening and closing of the carbon canister solenoid valve, and then burn it in the engine. Carbon canister not only reduces the pollution of gasoline to the environment, but also saves energy.

The carbon canister is generally designed in the engine compartment (previously designed near the fuel tank) and connected by a long pipeline, so there is generally no phenomenon that liquid gasoline directly flows into the carbon canister, and even a small amount will be consumed quickly with the engine working, so don't worry.

3. Negative pressure affecting the fuel tank

Many people think that after the fuel tank is full, the pressure in the fuel tank will gradually decrease with the slow consumption of fuel, thus causing the fuel tank to deform or even leak. This problem used to be very common, but now the probability of fuel tank deformation due to negative pressure is getting smaller and smaller.

Because there is an air hole on each tank cover, which is called one-way valve, the function of this one-way valve is to make air flow into the tank through the one-way valve when negative pressure is generated in the tank, but the volatile oil-gas mixture cannot be released, so as not to pollute the environment. Therefore, no matter how much oil is added, it will not affect the negative pressure of the fuel tank.

4. Affect the life of the oil pump

The gasoline pump works in the oil tank, and the heat generated in the work mainly depends on the heat dissipation of gasoline. The less gasoline, the lower the heat dissipation effect. The more gasoline, the higher the corresponding heat dissipation effect. From this point of view, adding more gasoline is beneficial to the cooling of the oil pump, even if it affects the life of the oil pump, it should be appropriately extended rather than reduced.

Of course, the increase or decrease of gasoline cannot be generalized, and it should be decided according to its own situation.

1. Fill up the gas for long-distance driving.

I suggest you fill up the gas before running or getting ready to run on the highway. There is a saying that "poor families are rich", although it is used to describe long-distance passenger transport, it also applies to cars. Once the car is on the highway, it will be very troublesome if there is a problem of refueling. On the one hand, the oil in the high-speed service area is not necessarily good, and the price is generally higher. At the same time, if you choose to refuel at high speed, you may not find the right one, so try to fill it up before running at high speed.

It is suggested to fill up the traffic jam in downtown.

In some big cities with frequent traffic jams, it is common for vehicles to stop and go and get home in an hour or two. If the oil lamp is on at this time, it is difficult to find a gas station in the case of traffic jam. Therefore, in order to prevent traffic jams and lack of oil, it is recommended that friends fill up with oil and never get into the habit of driving oil lamps to refuel.

The gas station can be less diligent when it is on the road or nearby.

If you commute very close every day and can pass by the gas station where you often refuel, you can choose to add less. On the one hand, painless meat cutting won't waste your time and fuel consumption.

It is of great benefit to form the following good habits.

1. Don't wait for the oil lamp to come on.

As mentioned above, the working principle of oil pump is to rely on gasoline to dissipate heat. When our car oil lamp lights up, it shows that there is little gasoline left, even if we continue to use the oil pump, it will be exposed, which will seriously affect the heat dissipation of the oil pump. Occasionally, not bad. Once this continues for a long time, it will definitely affect the service life of the oil pump.

It is better to refuel in the morning and evening.

Refueling in the morning and evening here refers to refueling in the morning or evening, because the temperature difference between morning and evening is still relatively large. Gasoline is a volatile substance, which is obviously affected by temperature. The higher the temperature, the larger the volume, and the lower the temperature, the smaller the volume. We choose to refuel in the morning or at night when the temperature is slightly lower, so it will save more money to spend the same money than to refuel at noon when the temperature is high.

Don't refuel when you see a tanker at a gas station.

Although gasoline looks clean, after long-term storage, a layer of impurities will form at the bottom of the oil depot, which is generally nothing, but once new gasoline is put into the oil depot, the impurities at the bottom will be stirred. At this time, if you refuel, some impurities will be added to the fuel tank, which will seriously affect the engine working condition and even lead to overhaul.

Of course, gas station employees with good reputation will remind car owners that they are unloading oil and are not suitable for refueling.

4. Try not to change oil frequently.

Many car owners don't care about oil, or care too much. Obviously, the manufacturer suggested using No.92 gasoline, but he decided to add No.95 gasoline. He thinks that the higher the gasoline grade, the better. Using high-grade gasoline can give full play to its performance and protect the car. In fact, this idea is wrong. The higher the gasoline label, the stronger the antiknock ability of gasoline, that is, the greater the engine compression ratio that can be sustained. However, if it is placed in an engine with low compression ratio, there will be insufficient ignition, and even if the power is not high, it is easy to deposit carbon, so it must be used according to regulations. Friends who don't care about oil products should also pay attention.

5. There is a good gift for refueling

Nowadays, in order to attract car owners to refuel as much as possible, many gas stations have withdrawn from the activities of car washing, paper feeding, water delivery, towel delivery and so on. In fact, it is a good thing to encounter such a thing. It costs about ten yuan to buy a piece of paper at will. Why not buy a gift at the same price?

Conclusion:

How many full-screen car owners want to refuel? The quality of the current car is reasonable, and the probability of problems in the fuel tank and oil circuit is relatively small. As long as the owners pay attention to oil products and develop good refueling habits, as long as they ensure that they don't delay using the car at ordinary times, they don't have to worry too much.

Well, I see the world from a distance. Do you have any suggestions about how much gas is appropriate? Welcome to leave a message for discussion. Finally, don't forget to pay attention and praise.