what is this product?
Seafoam is something you put into your gasoline if all else has failed to pep up your elderly auto, after tuneup. I did this once to my van, long ago, the mechanic put it in but didn't recommend it as a regular practice. I had been missing the siphon break hoses off the top of my van's gastank, long enough for splashvwater and whatever else to infiltrate the gas tank.
Playing sousaphone right now for Deep Creep