I was at Auto Zone the other day to buy Seafoam.There was this stuff called Berryman B-12 Chemtool right beside it.
I bought the Seafoam,but the B-12 seems like it could do the same thing at 1/2 the price.
they do the exact same thing........b-12 is actually the one most mechanics around here prefer, i think only because they get that through their dealerships