Monitoring the Two-Filter Fuel System Filters

Monitoring the Two-Filter Fuel System Filters - Ops - DD5
Notice: Fuel filter elements will turn black over time. This is normal for DD5/DD8 only. Do not replace filters solely because of this condition. Replace filters between normal service intervals only if required by troubleshooting.
The engine is equipped with a prefilter that filters down to 100 microns, a coalescer/final filter that separates water (DD8 only, the DD5 is not equipped with a water coalescing filter), and filters down to two microns.. When servicing these elements, both filters should be changed at the same time. Both elements are located within the fuel filter module located on the left side of the engine.
Note: Filter change intervals may be shortened to conform with established preventive maintenance schedules, but should never be extended.
  1. Replace the fuel filters using the Preventative Maintenance Tables.
Note:
Document Number: 0000042587
Manual Publication Date: 2024-01-05
Topic Publication Date: 2023-03-31