Friends have had numerous discussions about how to store gas tanks with the gasoline that is now required to have 10% ethanol (called E-10 Gas). For potable gas tanks I just pour the gas into my car and leave the tanks totally empty over the winter. For gas tanks (such as on a boat) that can’t be emptied and stored inside, this article gives some very good input.
We should always add stabilizer to any gas tank that isn’t going to be totally used in six weeks, which I understand is the ‘shelf life’ of gasoline that we purchase at the local gas station. I always add stabilizer to the outboard gas and any other small engine gas tanks, even in the summer. Actually I also add diesel stabilizer every time I fill the boat fuel tank as well, but that is a different subject.
The last paragraph has a