I just ordered some archoil ar6200, seems to be a very good additive, it is supposed to make your regen intervals longer, and it adds some lubricity to the fuel for your injection pump and injectors. It does other things as well.
One of the main reasons I bought it was because of a video on powerstroke help. He said that egr shortens the life of the engine by about 50%, and that this fuel additive reduces the soot, and as a result there is less soot circulating back thru the engine, he said this additive makes it “premium diesel fuel”, and that all the fleets he services have had less problems since running this additive. I dont know how true it is, but I have always found him very knowledgeable. He also said that this is not just a ford problem, its all nee diesel engines. Im excited to try it out.
Also here is the link to that video from powerstroke help:
https://m.youtube.com/watch?v=LLnFpKR5qNM&t=303s
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