There are few areas where filtration in vehicles has become more demanding over the last two decades than in the filtration of diesel fuel.

The drivers for these requirements were - and still are - the impressive technological optimisations of the injection systems. With the aim of increasing efficiency and minimising emissions, components and systems are constantly being refined and pushed to their technical limits. On the other hand, their sensitivity to contamination is increasing. System manufacturers are therefore forced to demand high purities of the fuel entering the injection systems.

In addition, engines used worldwide come into contact with widely diverging fuel qualities and increasingly with synthetic fuels, which are also contaminated with particles and water to very different degrees. 

Particularly in commercial vehicles and in the off-highway sector, the internal combustion engine will remain the most widespread drive system for many years to come. In order to promote climate protection, Hengst is developing fuel filter systems for these applications in such a way that they can also be used with alternative fuels. State-of-the-art testing methods are used to ensure, among other things, the resistance of the filter materials to aged and thus acidic biofuels.