Some people are used to refueling when the pointer of the fuel gauge is close to the "0" line, thinking that "light car" driving is more fuel-efficient. Some people add refueling to the "throat", thinking that this can avoid frequent pit stops for refueling. When exactly should I add fuel? How much fuel should I add? Recently, Mr. Zhang, a citizen, called the hotline and said that he had been buying a car for a while, but he still couldn't figure out whether to wait for the fuel gauge to remind him to add fuel, or if he felt that it was almost there before going. Refueling? When refueling, how much is appropriate to add each time? He asked some friends around him, and they said different things, so he wanted to consult professionals to get the exact answer.

In response to Mr. Zhang's question, we interviewed relevant automotive after-sales experts. Experts told us that car owners are very particular about refueling. If the yellow light is on and then refueling, it may cause the car to break down.

Misunderstanding: The yellow light is on and refueling is correct: Refuel when the fuel level remains 1/4

Regarding whether to wait for the light on the fuel gauge to turn on before refueling, experts believe that each car still has a certain amount of oil when the yellow light is on. Generally, it is time to refuel at this time, but it is best to refuel before the yellow light is on.

Many manuals remind that the pointer should be refueled at a quarter of the oil gauge, which is for the protection of the oil pump. Experts explained that the current gasoline vehicles all use electric gasoline pumps and electronic fuel sensors, which need to be immersed in gasoline to dissipate heat and cool down. If it is not in time, it will affect the life of the fuel pump, and even cause it to burn out; if the fuel tank of the car has not been cleaned for a long time, due to the large amount of impurities at the bottom of the fuel tank of the car, it is easy to cause the fuel circuit to block; It will increase the workload of the gasoline pump and affect the cooling of the rotor in the oil pump. In addition, the oil level is too low, which may also affect the oxygen sensor of the exhaust system.

Therefore, it is recommended that the owner of the car should always check whether the fuel gauge is in the end during use. Don't wait for the fuel gauge light to come on before refueling, because the maintenance costs of the fuel pump and oxygen sensor are not cheap. At the same time, if you don't stop to refuel in time, it will also cause the car to break down, which will bring great inconvenience to the owner's travel.

Misunderstanding: Filling up the tank is correct: add it to the second "jump gun"

Refueling, how much is appropriate? Experts believe that if you drive in urban areas for a long time, it is best not to fill up the oil, because a full tank of oil will increase fuel consumption. At the same time, some car owners have damaged the carbon canister due to excessive refueling. Especially for new cars, it is best not to fill up the fuel for the first time, because it is too full, which may cause the oil float and the sensor to fail, resulting in distortion of the fuel gauge.

Experts explained that the gasoline vehicle fuel vapor adsorption and desorption device, commonly known as "carbon canister", is a device to reduce gasoline evaporative emissions in the automobile fuel tank. If the fuel is too full, there is no space at the top of the gasoline tank, and the vapor formed by the gasoline has no place to discharge. In this way, it is gasoline liquid rather than gasoline vapor that enters the carbon canister, which will cause harm to the carbon canister. Therefore, the owner should not refuel too much each time, demarcate the 45-liter fuel tank, and start refueling when the remaining ten liters of gasoline are left, generally until the second "jump".

At the same time, experts remind car owners that if there is too much fuel in the vehicle's fuel tank, causing the fuel tank outlet to be buried in gasoline, causing the exhaust pipe to flow oil to the carbon canister, and finally leaking to the road, you should change the fueling method and do not add "" Jump the gun", then replace the carbon canister, the problem can be solved.