Why is it necessary to turn off the engine when filling up the car?

Why is it necessary to turn off the engine when filling up the car?

It is common knowledge that you can only fill up your car at a gas station with the engine turned off. However, few people know what happens if you try to refuel your car while the engine is running. We will talk about that in this article. Not many people know that you can get a lot of money for an old car: https://scrapcar.cash.

Why is it necessary to stop the engine when filling up the car?

Why is it necessary to turn off the engine

For many of us the necessity to stop the engine before filling the tank up is an axiom and an obligatory rule. However, even experienced drivers do not understand such requirements of gas stations.

It is believed that the engine must be shut off so that the sediment at the bottom of any gas tank is not agitated and sucked into the system during refueling. This can lead to serious clogging of the fuel system, after which you must not only change filters, but also perform an expensive engine wash with injectors.

There are strict fire safety rules at gas stations, so any such threat is tried to level out and, if possible, eliminated. When the engine is running, the temperature inside the exhaust system is high and sparks often fly out of the muffler pipe, which can ignite gasoline vapors, leading to a fire and explosion.

Article 34 of the Federal Law stipulates that you can only refuel a car with the engine turned off. Therefore, law-abiding car owners, in order to avoid any problems with the police, still turn off the engine before opening the gas tank hatch and start refueling with diesel or gasoline. By the way, such a thing excludes a possible car theft during refueling, when an intruder can just sit behind the wheel and drive away in such a running car.

What happens if you fill up the car with a running motor?

What the experts say

There is no consensus among the masters about the suction of sludge from the bottom of the gas tank. It is common knowledge that the Russian roads do not shine with their quality, it is necessary to get into a deep hole, the car body is strongly shaken, after that such sediment is agitated, which will invariably get into the gasoline pump and then into the system. Therefore, it would be simply useless to stop the engine when refueling just to avoid agitation of sediment at the bottom of the gas tank.

And as for possible fire from sparks coming out of the exhaust pipe, the majority of masters have no doubts. Indeed, the temperature in the catalytic converter and muffler banks can be quite high, so it is not uncommon for sparks to fly out of the exhaust pipe, which can lead to the ignition of saturated gasoline vapors. Therefore, in order to ensure the necessary safety, gas stations have introduced a mandatory requirement to refuel only with the engine turned off.

Certain problems with the need to turn off the car when refueling are noted in northern regions where winter temperatures are minus 50 degrees and below. In these conditions car owners never turn off the car in winter, as it would be impossible to start it later on. And yet during short-term refueling, which takes a couple of minutes at most, coolant, oil or fuel in the tank will not freeze, so you can literally stop the engine for a few minutes, perform all such refueling completely safely, and later on there will be no problems when starting the engine.

Why is it necessary to turn off the engine when refueling the car?

To summarize

Turning off the engine when refueling is necessary not only because of the law requirement, but also to ensure safety at gas stations. The fact is that the temperature inside the exhaust system is enormous, with barely visible sparks often flying out of the tailpipe, which can ignite saturated fuel vapors and cause an explosion at the gas station. That is why it is recommended that drivers clearly comply with such requirements of gas stations, always turn off the engine at the gas station, which will avoid any problems in the operation of the car.

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