What are diesel fuel additives and how they can protect the engine

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To minimize the risk of negative consequences when filling with low-grade diesel, it is worth paying attention to special additives that can be put into the fuel.

The concept of additives for diesel

Fuel additives are chemical substances or several compounds, capable of changing and improving the properties of diesel fuel.

The use of additives allows to achieve the following effects:

• increasing the cetane number of the diesel;
• cleaning of the fuel system;
• increasing the level of fuel resistance to low temperatures;
• protection of the fuel system from corrosion, and mechanical wear;
• improvement of the lubrication and other operational characteristics of fuel.

The result depends on the type of additives selected.

Main types of additives and their purpose

Additives in diesel fuel are classified into 2 main groups:

1. Regular. They are used on a permanent basis. Their addition to the fuel allows to protect the elements of the fuel system from premature wear, and corrosion and contributes to the modification of fuel properties.
2. One-time or for emergency situations. Depending on the type of effect that needs to be achieved are lubricating, cetane-boosting, angels and universal

If we dwell on single additives, it is worth noting the following points:

1. Lubricating additives are used in winter. During this period, there is always a high probability to fill up with diesel with kerosene admixtures. Experts recommend adding lubricating additives to a tank in winter every 3-5 refuelings. 
2. Cetane-increasing additives or fuel catalytic converters are also relevant in wintertime. They contribute to faster ignition and better combustion of the fuel-air mixture. 
3. Antigels. They reduce the temperature of clouding, precipitation, and the subsequent freezing of fuel.
4. Universal. These compositions have several of the above properties at the same time. On the market, there are universal additives, which additionally clean and protect the fuel system from corrosion.

You should only trust proven brands when choosing additives for diesel fuel. Buying an additive from a little-known company at a lower price can provoke the opposite effect and only worsen the properties of the fuel.