I only use the recommended amount, on first treatment. 1/4th after that. Like many things that are good, Sea Foam if to strong will cause some gaskets to swell up. Seen it on the brown Evinrude carb bowl gaskets.
The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD