[mike721]

A good healthy dose of Stabil in the full tank of gas, a short ride ( 10 miles) to get it through the whole system, plug in the tender and that's about it. I never worried about tires, if you are concerned and it might be a really long time then but it up on blocks or a jack or just roll it a few feet every 2-3 months.

Might as well change the oil before that last short run too, get fresh oil everywhere, but I honestly don't think that's nearly as big a deal as some people make it, unless the oil is filthy I seriously doubt it would do any harm leaving older oil in there for a while.

 

[mike721]

I've seen dry gas that contains methanol, and I've seen it contain isopropyl, going by what they claim both work pretty well dispersing water in a gas tank. Ethanol apparently does not.
A shame that we have the 'wrong' alcohol added to our gas.

Depends on the type of alcohol, I guess, and how much water it is exposed to. Seafoam is a mixture of a light oil and an alcohol, not ethanol, and does help keep the water suspended. I haven't read the MSDS for Stabil or Heat, but suspect they are similar.

One means of measuring the percentage of ethanol is to add water and mix, then measure the amount of gas floating on the water/ethanol solution after it settles, so ethanol may keep small amounts of water suspended, but as that amount increases, it separates and sinks. If you store a half tank in a place that the temperature rises and falls, the tank 'breathes', drawing in more moisture that adds to that suspended in the fuel, until separation occurs. That is what rusts the bottom of a tank, and fouls the carbs.