WOW!!!! First post on this forum and I did NOT expect such rapid and enthusiastic replies!!You folks are super!!! Will certainly be following the advice to stick with the Fleetguard filters. I'm not very experienced with forums. irv2 and ice shanty are the only ones I occasionally participate in. A little history for what it's worth. My first diesel was a used '08 F350 with about 80K on it. Had it a couple years with significant transmission problems. Traded in 2013 for new 2012 Ram 3500 limited srw. Went with the 2012 'cause I didn't want to deal with the DEF. Now have about 130K on it. Since about 60K has had intermittent problems where it would lack power for several minutes and check engine light would display. Not always, but mostly, while pulling my camper in cold temps. Next day the engine light would be gone and normal operation for up to several weeks. Took it to dealership but they couldn't do anything 'cause engine light not on. I came to assume this was a "regen" problem and learned to ignore it. A week ago it did it while pulling my backhoe on trailer and I was able to get an Irish parts store to put a code reader on it and showed P0299, P049D, and P046C. So, plan to do EGR clean. Don't know if I want to tackle the EGR cooler clean (as said before I'm not much of a mechanic. Especially in sub-freezing weather in the driveway). Dealership never mentioned routine maintenance of these parts when in for the lack of power problems and oil changes. So now I get to do the "catch up". Hope I haven't killed something. Thanks for reading. I look forward to y'all's input as I learn. Many thanks!