I have no dog in this either, but there are lots of things that people said couldn't be done that later was disproved. I had nothing to go by on Archoil except for positive reviews since 2011 and was willing to try it for the shipping cost amid a chorus of "snake oil" from folks who had never tried it. I did try it and had positive results with my Powerstroke and even better results with several gas powered engines. It makes no difference to me whether you try it or not; I just offered it up for enlightenment. It is how I found out about the Oxygenics shower head and other things that were better than what I had previously used. Had I written them all off as unlikely, I would still be getting by with what I had, but less pleased than I am now.
I tried drier sheets for keeping out mice during the winter and only provided them with nesting material. I switched to Fresh Cab with better results but am still open to an even better rodent repellent. I just prefer being open to new ideas.
2015 F350 XLT PSD CCSB SRW, Andersen Ultimate hitch
'12 Cougar High Country 299RKS, Mor/Ryde Pinbox
1/77 Armor Bn, 5th Mech, I Corps