True, but I'd read on another forum where someone had talked with a tech at magnuson that said no seafoam in the fuel either. But as the discussion went forward, it was assumed that this was just them being cautious and not wanting to be held responsible for anything. I tried calling myself but the sales guy never heard of Seafoam and when I asked to speak to a tech...I was disconnected. I'm gonna try it anyway.I think that warning is aimed towards people who put Seafoam directly into the intake of their motors... which would force it through the rotors.
By introducing it to the engine through the injectors (pouring it into your gas tank) I don't believe any of it actually comes into contact with the rotors.
This depends entirely on intake/intercooler/blower design, but I'm pretty sure the rotors don't touch the fuel.