What happens when the amount of refueling exceeds the approved capacity of the fuel tank in the vehi

First of all, it should be noted that the car fuel tank is not a measuring instrument, and it can only play a reference role in whether the number of refueling is accurate. The fuel tank capacity given in the car manufacturer's manual refers to:"Fuel tank rated capacity", ie"Safe capacity", not the tank that can hold oil"Maximum capacity"。

In order to prevent secondary safety problems such as oil spillage, according to the provisions of the national mandatory standard GB18296-2001 "Safety Performance Requirements and Test Methods for Automobile Fuel Tanks", the rated capacity of the fuel tank cannot exceed 95% of the maximum safe capacity of the fuel tank, usually 80%-90% of the maximum capacity. This means that each tank can be filled with at least 10% more fuel than the tank capacity.

For example, the Nanjing Municipal Quality Supervision Bureau measured the maximum capacity of the fuel tank of ten different models, the largest JAC Tongyue measured capacity exceeded the nominal capacity, accounting for the nominal capacity, and the smallest Lifan 520 exceeded the nominal capacity and accounted for the nominal capacity. Therefore, it is normal for the actual amount of fuel to be greater than the nominal capacity of the car's fuel tank.

A fuel tank is not a simple container for fuelRather, it is a very complex on-board safety device. It has a national mandatory standard, and the fuel tank of all models must meet the GB 18296-2001 "Safety Performance Requirements and Test Methods for Automobile Fuel Tank" standard. When refueling, gasoline enters the fuel tank and inevitably squeezes out the air inside the tank.

Safety hazards: However, the reason why we stay away from the engine is to avoid the hidden dangers caused by high temperatures, which is relatively safe. However, there is also a problem with the fuel tank at the bottom, that is, it is easy to be bumped by hard objects from the ground, so it is best for us to choose those models with their own fuel tank guards when buying a car, as long as the gasoline pump can pump the oil, and the gasoline flows through the inside.

This is normal and common. The target volume of the vehicle is only the safety volume, and the maximum volume of the fuel tank. Generally speaking, from the automotive industry, the maximum volume is about 10% larger than the safe volume, that is to say, the maximum volume of the standard 50L fuel tank is at least 55L, and may even reach 58L, so your situation is quite normal.

52L is a safe volume, and you can add a few liters.

Generally, the fuel tank volume marked on the car manual is the safe capacity of the fuel tank, because the car is in a high-temperature working state for a long time, once the fuel in the fuel tank is too much, it is easy to overflow and produce some accidents, so the general manufacturer will indicate a fuel tank volume in the manual, which is the safety volume of the fuel tank, mainly to let the fuel from the safety boundary to the fuel tank mouth There is still a certain space, so as to avoid the oil in the fuel tank from expanding at a high temperature, and overflowing the fuel tank. Generally, the safe capacity is 95% of the actual capacity, so the capacity when the actual refueling is filled up is more than indicated on the manual.

If the oil is added to the tank port during the refueling process, the actual refueling volume will be larger than the fuel tank volume calibrated in the manual. Sedimentation, rust, deformation and other reasons in the fuel tank will affect the capacity of the fuel tank. According to the relevant person in charge of the measurement department, the actual capacity of the fuel tank is greater than the nominal capacity, according to the fuel safety characteristics, the state stipulates that the nominal capacity of the automobile fuel tank is 95% of the rated capacity, so when filling up the fuel or more than the nominal capacity, it is not because of the problem with the measurement of the refueling machine.

It is not excluded that some small gas stations do tricks on the fuel dispenser in order to seek profits, and generally our cars are on when the fuel tank sign is on. In fact, there is generally a capacity of about 8L, which is designed to remind us to refuel in advance.

Filling up will increase the curb weight and increase fuel consumption. It is easy to block the air intake, the carbon canister fails, especially in the summer high temperature causes gas expansion, too much refueling will cause oil and gas to overflow, there is a fire hazard, and the flow into the airway will also have an impact on the spark plug, causing the car to fail to start.

It may be that you accidentally put oil into the mouth of the tank, which is why it will lead to such consequences. Otherwise, there is a problem with the fuel tank.

Because the volume of oil is larger than the volume of the tank, the volume of oil will exceed the volume of the tank when the tank is filled.

<> we have to first know how many liters the fuel tank of our car is, for example, my Hot Tiger Seven, I read the ** book and found that the total capacity of the fuel tank is 51 liters, does that mean that I can add up to 51 liters when I refuel to the natural jump gun? The car is really not like this, this is mainly because the car fuel tank belongs to the important safety equipment on the car, the country has developed a GB18296 bar 200 car fuel tank safety performance requirements and experimental methods, which is a national mandatory standard, the car must be unconditionally implemented.

In this standard, the first item stipulates that the fixed capacity of the automobile fuel tank has been controlled at 95% of the maximum liquid capacity of the fuel tank, that is, the actual capacity of the automobile fuel tank is higher than the rated capacity.

Large, for example, the rated capacity of my car is 51 liters, its actual capacity should be 51 divided by about 53 liters, generally refueling to spontaneous combustion jump gun, the fuel level it is not completely filled below the addition port, in fact, you can continue to add a few more liters, generally we drive to refuel, there will definitely be a few liters of oil in the car tank, so if you add to the spontaneous combustion jump gun, generally there will be no problem of adding more fuel than the standard car capacity.

Unless it is to continue to refill after jumping the box, but if the fuel in the car tank is used up, the car is really unable to go, push or drag to the gas station, and then it may add more fuel than the standard car capacity. The standard volume of the fuel tank is also the safe volume of the fuel tank, since gasoline is volatile.

liquids, there will be a coefficient of expansion.

Therefore, don't fill up the fuel too much when driving on the day, and leave a certain expansion space for the gasoline when you jump the gun, so as to avoid the expansion and overflow of the fuel tank when the temperature becomes high, so as to ensure our driving safety.

So if your car is really out of gas, go to the gas station to fill up and find that the volume of oil is a little more than the volume on the fish, which is completely possible, but if there are a lot of them, you need to pay attention, the state stipulates that the error of the fuel dispenser is between the ridge leakage, this error can be said to be very small, if you think it is a problem with the gas station, you can call the police to deal with it.

For many car owners, the cost of refueling is the main expense of car maintenance, especially the small row of cars with a sharp beam. There are two things that I am most afraid of when refueling, oil quality problems and lack of catties. Out of stupid luck for the concern of oil products, many car owners have always maintained a resistance to private gas stations, although the oil of private gas stations is not necessarily worse than three barrels of oil.

According to the requirements and test methods for the safety performance of automobile fuel tanks, the rated capacity of the fuel tank type can not exceed 95% of the maximum safe capacity of the fuel tank, usually 80%-90% of the maximum capacity. This means that each tank can be filled with at least 10% more fuel than the tank capacity.

More than the capacity of the car oil carryer, the main reason for the most cautious light is that there is a problem of exceeding the standard, the gas station is actually very black-hearted, such a practice is actually very dangerous, there will be **.

Summary. The fuel tank capacity given in the car manufacturer's instructions is the nominal capacity of the fuel tank, not the maximum capacity of the fuel tank.

According to the national standard, the safety performance of the fuel tank requires that "the rated capacity should be controlled below 95% of the maximum liquid capacity of the fuel tank", which is usually about 80 90% of the maximum capacity.

What happens when a car fills up its fuel tank beyond the approved range of the tank?

The fuel tank capacity given in the car manufacturer's manual refers to the jujube, and Jane Tsai is the nominal capacity of the fuel tank, not the maximum capacity of the fuel tank. According to the national standard, the safety performance of the fuel tank requires that "the rated capacity should be controlled below 95% of the maximum liquid capacity of the fuel tank", which is usually about 80 90% of the maximum capacity.

If your mailbox standard is 50 at 80% to 90% of the maximum capacity, then the maximum capacity is between 55 and 50%.

The actual increase is more than 60, and it is estimated that the maximum capacity is almost reached.

Due to thermal expansion and contraction, in the hot summer, if the oil is overfilled, the oil will overflow through the exhaust hole. Once it encounters an open flame, it is easy to cause a disaster, and even a disaster will occur in severe cases. If the tank capacity is exceeded, the air holes will be clogged:

Full oil tends to clog the exhaust hole. Once the vent is blocked, negative pressure will be generated in the fuel tank, resulting in poor oil supply or even no oil supply. In addition, filling too much oil can cause damage to the canister.

The canister is generally installed between the fuel tank and the engine. Gasoline is a volatile liquid, and there is often vapor in the tank at room temperature. Exceeding the tank capacity can affect the fuel evaporative emission control system; The role of the fuel evaporative emission control system is to introduce steam into combustion and prevent steam from evaporating into the atmosphere.

In this process, the activated carbon tank storage device will come into play. If the fuel is too full, gasoline instead of steam will enter the canister, causing damage to the canister. Car parts damaged:

If the petrol itself is too full, it will definitely increase the overall weight and fuel consumption of the car. In addition, if it is too full, it is easy to cause gasoline liquid to enter the pipeline, not only harm the carbon canister, but also flow into the air channel along the pipeline, causing the spark plug to fail, and even causing the vehicle to fail to start.