How to clean the fuel tank?

Service maintenance rarely includes such a procedure as cleaning the fuel tank. It is usually operated until the vehicle malfunctions. But it is important to remember that eliminating the consequences is a more costly and expensive measure.

Why is it important to clean the tank?

A clogged tank can lead to:

• engine malfunctions;
• difficult starting of the engine after a long period of idleness;
• formation of clogging in filters and fuel injectors;
• loss of tightness due to severe rust damage.

Pollution can also have a negative impact on workfuel system. To learn how to clean diesel or gasoline fuel, you must first determine the type of contamination.

Water

This is the most common type of contamination. Water is very dangerous for a car. It enters the fuel system through diluted fuel. Water can also condense from the air in the tank. Due to its greater weight compared to fuel, it settles to the bottom. After that, it spreads through the fuel system. This liquid is especially dangerous in winter - due to the low temperature, it freezes and creates an obstacle. Water also activates corrosion processes.

How to cleanfuel tankfrom water? There are several ways. The first option is the use of methyl, ethyl or isopropyl. The product used must be clean and contain no impurities. About 0.5 liters of alcohol are needed for a 50-liter tank. If the engine is diesel, then alcohol is replaced with engine oil. Alcohol combines with water, forming a burning mixture.

The second option is more expensive - you need to drain all the fuel and completely dry the tank. It is easiest to do this on cars with a drain hole. Otherwise, a fuel ramp will be required.

Another method is chemical solutions called moisture repellents. You can buy them in auto shops. Dehumidifiers remove moisture and help fight corrosion. It is important to choose proven compounds.

Other pollution

Precipitation and dirt get into the tank mainly from low-quality fuel. They settle to the bottom and gradually disable the fuel system.

How to flush the diesel and gasoline fuel tank in this case? Cleaning agents or a soapy solution will be needed for washing. If there is a drain hole, it is not necessary to dismantle the tank. But it is better to remove it - it will increase the quality of cleaning.

Soap solution or cleaning agent is poured through the neck, after which you need to shake the tank thoroughly. As an alternative, the use of pressurized water is allowed. After draining the water, the procedure is repeated. This is done until it is clean. Next, a little fuel is poured into the tank and drained. Now it remains to dry the tank and it is ready for further operation.

Rust

Rust appears due to additives in fuel, cloudy sediment, water. It is also helped by the use of aggressive dehumidifiers.

How to clean the fuel tank from rust:

1. Using strong water pressure. With its help, you can remove large flakes and light plaque. It is possible to increase the effect by adding small nuts or fractions to the tank.
2. Using special reagents. Usually, orthophosphoric acid, acetone or other corrosion modifiers are used to combat rust.
3. By the method of electrolysis. It is resorted to in advanced cases. The procedure is dangerous, so it is better to entrust it to specialists.

Cleaning of the tank with the help of special converters is carried out in personal protective equipment and in a ventilated room. The tank is removed, after which hot water or kerosene, gasoline is poured into it (in case of heavy pollution). You need to shake the tank strongly and drain the liquid. The process is repeated several times.

In the next step, the tank is dried with a hairdryer and a chemical reagent is poured into it. It is diluted in water according to the instructions. The tank is shaken well again and left for a while, periodically repeating the procedure.

How to flush the fuel tank from the reagent? First, a soda solution is poured into it (100 grams per 10 liters of water). After that, you need to wash off the remaining soda with water and carry out high-quality drying. Now the tank can be installed in place.

Preventive measures

In order to prevent the formation of serious contamination, it is recommended to clean the fuel tank with a certain frequency. Treating the walls with epoxy resin and using anti-corrosion additives help to protect the tank. You should also refuel at verified gas stations. It is not recommended to fill the fuel tank in wet weather. If you can't do without it, then you need to top it up.

We hope that these recommendations on how to flush the fuel tank of a car will be useful.