Looking to hear from Duramax owners that have added additional fuel filtration capabilities to their trucks, and results (measured in miles) of service life on your injectors.

Very unscientific, but with a volume of good data, we may be able to see a trend line. Please include the following:
  1. Year/Make/Model truck
  2. Engine code (LB7, LLY, LBZ, LMM)
  3. Type of additional filtration added, and at what odometer reading
  4. History of injector replacement, if any, and at what odometer reading(s)
  5. Overall satisfaction with additional filtration - return on investment commentary