seafoam high mileage

[DrBeavis]

has anyone used the "high mileage" version of seafoam? my plan is to just stick to the gas tank only, and not do anything else. any drawback to it vs the regular version?

[palmerwmd]

I'm a Chemist and the high milage version should include some seal swellers for your fuel system gaskets.
I have yet to use it though but use the regular Seafoam on occasion as an addition to the tank.