I had one on my 2006 Ford 6.0 because they were known to have casting sand debris in the block. It did a good job. I have not used one on my Ram trucks nor do I know of anyone who has. o you have a reason to add one or just being extra safe?
HOAT and OAT is good for 10 Years or 150K miles, just flush it and replace. I've seen power plants with 800K miles or 12000 hrs with passage that were clean.