Your next tank of diesel could be lurking with water, microbial growth (bugs) or tiny particles that the factory filter never picks up - They can all detsroy your fuel injection system! Dont risk it, get extra protection to save it.
One way to provide the best protection your engine is to install an additional fuel filter and water sperator. All common-rail systems only have one factory filter, so installing the additonal filter is a must. The primary (pre) filter is plumbed before your factory fuel filter. Rated at 30 micorns and prolongs the service life of your factory filter cartridge.