What do you know about SeaFoam?????

[Toolite]

Seafoam is a great product for your crankcase, to help "free" sticking hydraulic lifters, as well as a gasoline fuel additive to help remove carbon build-up on the back side of intake valves.
Its not a cure-all but it does help. Been using it for about 18 years

 

[mahlers]

It sounds a lot like Marvel Mystery Oil. Anyone know how close they are in formulation?