I myself run no other additives. I have mixed in a small amount of acetone. Like a couple shots per gallon to thin it. I did buy some diesel 911 just in case for winter. Didn't need it. Intact the truck ran well all winter. I did cut back on mixing in oil though as it was getting hard to start in the really cold days. Yet my truck is hard to start in summer. I need to redo my return lines and O rings. Then I want to check the glow plug system over.
I have done some Google searching and there is a lot of info on this subject. I don't buy into the fact that running oil/atf in these trucks for fuel will harm them. I feel it helps lubricate the pump and saves on my fuel cost. If I could get more oil I would to run.