Winterizing the boat, Gas tank - full, empty, treated or not?

[Fozzy47]

What is the best way to leave your boiat gas tank over the winter?
Do you leave it full, treat it with seafoam or equivalent, or empty it.

I'm imagining condensation is the main culprit in the spring start-up.
Getting ready for winterizing soon, would love to know the best way to leave the tank.

Cheers,

[deepjigger]

I have always put some fuel stabilizer and filled the tank up before I put it away for the season. No issues so far come spring time.

I have also heard some different opinions on whether it should be emptied, at least half full, or completely full. Could be a preference thing.

[SpeerZ]

Fill it with high test and add seafoam. Never have had any issues!