A fuel filter is a vital element of any car that removes dust and rust particles preventing them from entering the fuel rail. If there were no fuel filtration, all the filth would accumulate in elements of the fuel system, clogging its narrow flow section, and disabling the system.

The filtration system has at least two cleaning stages. The first one is a rough stage, for big particles that got in with the fuel, are removed. The second stage is conducted by the fine filter located between the fuel tank and the engine. Its exact location depends on the car’s model.

Fuel filters differ by construction and are installed in the car according to its fuel system type. They can be divided into three categories: carburetor, injection and diesel.

In the carburetor system, the pump sucks the fuel from the tank and forwards it to the carburetor. The filter is placed in a transparent nylon shell so it is possible to control the level of its pollution.

The fuel system of an injection engine is more demanding to filtration efficiency. If the particles that enter the system are too big, they may cause a defective injection of the fuel, thus affecting the functioning of the engine. Also, in injector systems, the shell of the filter must be made of a hard material (normally metal) to endure the high pressure of the fuel rail.

A particular feature of diesel fuel is changing its characteristics when the temperature drops. Paraffin wax present in the fuel, crystallizes at low temperatures and may clog the filter, disabling the whole system. That’s why some filters have a heating element that prevents the formation of paraffin wax.

VAICO produces all three types of fuel filters, using top-notch technology that guarantees an efficient filtration of any particles. That is why VAICO fuel filters are an excellent choice if you want to keep your fuel system working.

Info provided by BuyCarParts.co.uk