I like the cheap Cummins filters. Stinkin Chevy fuel filter is 50 bucks for the Duramax. Needless to say mine stays on way to long. Shorts, you need to look into getting a bottle of stanadyne. I use the lubricity formula in anything diesel and never replaced a pump or injector.
You guys complaining about your duramax engines are making me feel better about keeping the 6.5TD. The fuel filter for it it a whopping $12.95.
The 6.5TD is a beast. I wanted to find an old body style 2dr Blazer or Tahoe with that engine in it. I still might. Tim's been really hating on his Heep lately and I don't blame him. I think he's wanting his 2dr Tahoe back. That was a great truck