When should I put gas in my Ford F150 after I used Sea Foam Motor Treatment? [SOLVED] Asked by Eudocio H. In Missouri When should I put gas in my Ford F150 after I used Sea Foam Motor Treatment?
Good question.
You can add fuel whenever you’d like.
Here’s what I like to do: Add a full can of Sea Foam to a low tank of fuel (1/8 of a tank or so). Then, drive until almost empty before filling your gas tank.
The high concentration of Sea Foam works fast and very well to clean.