Originally Posted By: Danh
I haven't seen one, but you should be able to roughly compare additive packs from used oil analyses. Viscosity will change with use and contamination, so that comparison will be much less useful.
Despite Honda's claims about the unique qualities of its branded oil, I suspect it's really just a typical blend or full synthetic. And Honda's full syn almost surely contains lots less PAO than Mobil1 EP 0w-20, for example.
It was the additive pack that I was thinking about (comparing Motorcraft and Kendall), so perhaps that should let me know how much of, say, moly, zinc, etc. would be in a UOA of each. I have no illusions about the quality of Honda oil, in the sense of it being superior to anyone else's. But I gotta say that my Civic did an average of 8800 miles in between oil changes on it (mainly dusty highway), and no problems at 180K, so it has to be a decent oil. I just was wondering how much better the Kendall or Motorcraft would be, that's all.