UPDATE 9/17...:
I was told by nearest repair shop that the worst that can happen is engine kills if seal perfectly covers fuel intake...chances are tiny that happens ...
hummm, I am going 65 and engine suddenly quits does not comfort me much...any boats behind or near me could run over me...
other area dealers are closed Mondays...(Big Boys here and Yamaha Marine in Jville where I ordered the boat)...
my firm advice is when using any additive remove the seal and throw it away BEFORE getting near the boat to add it!!
Still fuzzy on what I should do...BTW, a search revealed this issue goes back for some guys to 2006!
You would think that seal would be changed to float or some change eliminating the possibility of the tin foil seal easily becoming detached
when you pour the RF...