I posted that in the original thread, it probably wreaks havoc on the rubber and plastic pipes and seals. The concentrations are pretty low in this application, which is probably why the cars that have tried it have not yet fallen apart, but who knows about longer term usage. Also, I wonder if the corrosion problems could be worked out. I was also concerned about the possible "wash down" of the cylinder walls, of the oil layer that protects them, just a few caveats.. I might try this on an older cheapo car, but not on my new Odyssey...
You will like bobistheoilguy. Others have tried it there with a lot of mixed results from lower mileage to better. No clear answer and lots of opinions that I could see.