How much Sea Foam Motor Treatment to add to snowblower fuel [SOLVED] Asked by Frank M. In Alabama Hi, how many ounces of Sea Foam should I pour into a snowblower gas tank?
Hi Frank. Because I don’t know the size of your snowblower’s fuel tank, I’ll answer based on fuel volume. For a snowblower, 1 ounce per gallon of gasoline will help keep the fuel fresh. For keeping the carburetor clean from varnish, I like to add at least 2 ounces per gallon.