Does auto-rx have the ability to vaporize and clean the intake tract past where the PCV lines enter? Will it then clean intake valves as well? I think it's just wishful thinking, but oh well.
Yea, I know, but a tremendous amount of oil vapor is sucked through the PCV system and into the intake manifold, so wouldn't one component of that vapor be auto-rx?
Actually, not all that much oil vapor gets into the intake. If it did, you'd be fouling the cats in short order, as well as using a lot of oil. Enough gets in to make a mess after a while, but not it really does not take much oil to do that.
Main vapors that go through the PCV, are unburnt hydrocarbons, steam, and CO2.