Dirty fuel in a tank

Refill fuel to a car at gas station

Dirty fuel is nothing pleasant. Sometimes the contamination reaches such a high level that it may cause a crash or other serious damage to the injection system in the car. Most often, however, the signs of dirt deposit for years and you do not notice them in everyday use of the vehicle.

The part responsible for ‘capturing’ and controlling the amount of pollution in the fuel is the filter. However, it does not stop every dirt particle, only most of it. Therefore, after driving long distances one should consider cleaning the fuel system using special chemicals.

The tests show that the quality of fuels sold in Poland has recently significantly improved, but it is still not perfect. Dirt badly affects an engine performance and can lead to costly failures. So let’s remember that once in a while we should clean the power supply.


Fuel gets contaminated very easily

Most of the particles and impurities are intercepted by the strainer on the fuel pump. Minor impurities which are  mixed with the fuel, get to the fuel filter via the fuel line. This is where the proper filtering and purifying fuel impurities take place. Everything that has not been retained in a sieve of the fuel pump and the fuel filter, goes directly to the injectors, gradually building up in their interior. The proper work of the injector is eventually interrupted. The incomplete opening of the needle and the injection nozzle contamination, significantly decrease the quality of spraying and atomization of fuel with air. It also happens that the excess of accumulated dirt inside the injector leads to more serious faults. It is due to the fact that the needle of the clogged injector will not be able to move freely, so the injector will neither open, nor close fully.

This, among other things, results in excessive combustion, excessive smoke from the exhaust pipe and the numerous difficulties with the start-up and operation of the motor car. In extreme cases, the needle valve can be obliterated. It is not only the dirt that gets into the tank. A common problem is sometimes the water that gets there due to temperature fluctuations. While being in contact with the metal wall of the fuel tank it will corrode and appearing of rust.


The composition of the fuel system:

  • fuel tank,
  • fuel pump,
  • fuel hoses,
  • fuel filter,
  • injection strip,
  • injectors,
  • fuel pressure regulator.

Fuel taken by the fuel pump immersed in the tank, is pumped under pressure through hoses and fuel flows through the fuel filter, getting to the injection bar, where the injectors are directly powered.


Cleaning of fuel tanks

To prevent possible failures we should clean the fuel systems with special fuel additives. How do I use them? During refueling the vehicle, preferably just before filling the tank, simply pour the additive to the tank. In this way, it will be mixed with the fuel and following the path of the fuel from the tank, it will clean the system. Then, the fuel will be injected into the cylinders and will clean the fuel injectors, valves and combustion chamber. Remember that the type of the fuel additives depends on a different kind of weather and also a different type of the motor (powered by petrol or diesel).

If you do not want to do this yourself, you can ask a member of staff of a professional workshop which is equipped with the appropriate device. Relax – dirty fuel in your tank is not a tragedy. It happens to many drivers!