seafoam

So, I made my first step-by-step D.I.Y. video on seafoaming the FSI engine, since most of the Youtube videos were for the TSI. Not that thers a big difference when it comes to how to seafoam them, but I had time to kill. Check it out if you want:

I'm not entirely sure where seafoam circulates throughout your engine/emissions. Would it be smarter to use seafoam BEFORE I installed my catch can? Or are the PCV breathers unaffected by seafoam? Also, is it true that it's best to use seafoam right after an oil change?

So recently I discovered the additives to fuel are useless. They actually hinder gains by 2 horses on average. I was reluctant to try SeaFoam as it is claimed as an additive as well. Just changed the oil last week to Mobil 1 full synth with the recommended amount of SeaFoam added to clean the...