I also use only Fleetguards for my 05 Dodge CTD. The Mopar filter for it is made by Fleetguard. Used Fleetguards when I had my Peterbilt with a Caterpillar 3406E- oil analysis always came back with good results as far as the filter was concerned.
I'm on my last case of Mopar filters for the Jeep, not sure who makes them for DC. When I run out, I'm ordering Fleetguards for it too. Mine is a LF798, which replaces the 33004195 AMC part number, which is the metric threaded filters. And, it just so happens it uses the same fluted filter cap wrench as the Cummins, not that I need it for the Jeep, but it's handy.