After putting Sea Foam in the gas tank, can you add gasoline right away? [SOLVED]

Thanks for the question, Gary!

To get the most cleaning power out of a can of Sea Foam, you’ll want to create a high cleaning concentration of Sea Foam to fuel.

Here’s what I’d do: wait until the tank is low (1/4 -1/8 tank), and add the whole 16 oz can. Then, drive for as long as possible on that tank before refueling. It’s safe to add a high concentration like that and it works very well for cleaning fuel residues and deposits.