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What is the best and easiest way to neutralize moisture in the tank of a diesel car?

  • October 14, 2023
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One of the most pressing problems, known to many owners of cars with diesel engines, is the ingress of water into diesel fuel. How and by what means

What is the best and easiest way to neutralize moisture in the tank of a diesel car?
One of the most pressing problems, known to many owners of cars with diesel engines, is the ingress of water into diesel fuel. How and by what means it can be neutralized was discussed on the AutoVzglyad portal.

Fuel and lubricant experts claim that the process of wetting diesel fuel often occurs already at the stages of transportation to gasoline storage facilities and gas stations, as well as during subsequent storage and pumping. The main reason is seasonal changes in humidity and temperature changes, which cause condensation under certain conditions.

This process takes place most intensively in half-empty tankers, fuel tanks and unfilled car tanks. According to experts, after a year of use, up to a liter of water-mud mixture can accumulate at the bottom of the tank, depending on the volume. What does this mean?

First of all, water, when mixed with diesel fuel, causes active corrosion of the metal elements of the fuel path. As a rule, parts affected by rust should be replaced in the future. Secondly, water noticeably deteriorates the performance of injectors and fuel injection pumps. Third, this can cause simple freezing of fuel lines during the off-season and in winter.

It is also important that water as a substance does not dissolve in diesel fuel. After mixing with fuel (for example, when the car is moving or when diesel fuel is poured into the tank), it remains there for some time in an emulsified state.

In a state of prolonged rest, these liquids are separated into fractions and the water in the tank is always below the level of diesel fuel. Many car manufacturers extensively use this function of separating the water-fuel mixture to periodically remove water from the fuel tank.

This practice is particularly common on trucks and some SUVs. Sediment filters are mounted on them and the fuel tanks themselves are also equipped with drain pipes. But most modern diesel cars and crossovers equipped with plastic gas tanks do not have such a drain at all. What should we do then?

In this case, there is an alternative option for neutralizing moisture, which today is actively promoted by manufacturers of automotive chemicals that produce special types of additives. Some of them are called neutralizers, dehumidifiers or moisture displacers, others as complex fuel preparations that have a moisture-displacing effect. In addition, some car enthusiasts also offer folk remedies. For example, alcohol, about which you can find many negative reviews on the Internet.

As for specific automotive chemicals, experts say specialized compounds aimed strictly at neutralizing water in diesel fuel work best. Such products include in particular the new generation drug Fuel Protect Diesel, created by chemists from the German company Liqui Moly.

As the developers themselves note, this fuel preparation contains, among other things, special components that have a targeted anti-corrosion effect in relation to the moisture found in diesel fuel. A distinctive feature of the product that distinguishes it from other analogues is its increased ability to resist the formation of an emulsion from water and diesel fuel in the tank.

At the same time, Fuel Protect Diesel effectively ‘binds’ water molecules, suppressing their corrosive activity. All this together allows you to reliably protect diesel equipment from the negative effects of bad fuel containing moisture. By the way, the additive has successfully proven its effectiveness on the Russian market. Moreover, this product is universally applicable and can be used in any type of diesel engine.

Photo from the portal “AvtoVzglyad”.
Photo from the portal “AvtoVzglyad”.

Fuel and lubricant experts claim that the process of wetting diesel fuel often occurs already at the stages of transportation to gasoline storage facilities and gas stations, as well as during subsequent storage and pumping. The main reason is seasonal changes in humidity and temperature changes, which cause condensation under certain conditions.

This process takes place most intensively in half-empty tankers, fuel tanks and unfilled car tanks. According to experts, after a year of use, up to a liter of water-mud mixture can accumulate at the bottom of the tank, depending on the volume. What does this mean?

First of all, water, when mixed with diesel fuel, causes active corrosion of the metal elements of the fuel path. As a rule, parts affected by rust should be replaced in the future. Secondly, water noticeably deteriorates the performance of injectors and fuel injection pumps. Third, this can cause simple freezing of fuel lines during the off-season and in winter.

It is also important that water as a substance does not dissolve in diesel fuel. After mixing with fuel (for example, when the car is moving or when diesel fuel is poured into the tank), it remains there for some time in an emulsified state.

In a state of prolonged rest, these liquids are separated into fractions and the water in the tank is always below the level of diesel fuel. Many car manufacturers extensively use this function of separating the water-fuel mixture to periodically remove water from the fuel tank.

This practice is particularly common on trucks and some SUVs. Sediment filters are mounted on them and the fuel tanks themselves are also equipped with drain pipes. But most modern diesel cars and crossovers equipped with plastic gas tanks do not have such a drain at all. What should we do then?

In this case, there is an alternative option for neutralizing moisture, which today is actively promoted by manufacturers of automotive chemicals that produce special types of additives. Some of them are called neutralizers, dehumidifiers or moisture displacers, others as complex fuel preparations that have a moisture-displacing effect. In addition, some car enthusiasts also offer folk remedies. For example, alcohol, about which you can find many negative reviews on the Internet.

As for specific automotive chemicals, experts say specialized compounds aimed strictly at neutralizing water in diesel fuel work best. Such products include in particular the new generation drug Fuel Protect Diesel, created by chemists from the German company Liqui Moly.

As the developers themselves note, this fuel preparation contains, among other things, special components that have a targeted anti-corrosion effect in relation to the moisture found in diesel fuel. A distinctive feature of the product that distinguishes it from other analogues is its increased ability to resist the formation of an emulsion from water and diesel fuel in the tank.

At the same time, Fuel Protect Diesel effectively ‘binds’ water molecules, suppressing their corrosive activity. All this together allows you to reliably protect diesel equipment from the negative effects of bad fuel containing moisture. By the way, the additive has successfully proven its effectiveness on the Russian market. Moreover, this product is universally applicable and can be used in any type of diesel engine.

Source: Avto Vzglyad

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