Re: classic case of ethanol poisioning
Every single additive that claims to protect against ethanol does so by dissolving water in the fuel. Except Startron, they all do so by adding alcohol -- with some it's IPA, others methanol, and startron claims some kind of proprietary formulation of some kind; if it works as described in the literature it ought to be good, I can't say cause I don't use it.
But none of them can prevent the effects of alcohol on fuel system components, nor do they claim to, as far as I know.
Adding alcohol to the fuel increases the amount of water that can be dissolved in the gasoline; it also further reduces the energy content, increases the octane rating.
Lot of misinformation on the web (not in ezeke's links), people believing that E10 draws excess water in from the atmosphere, enough to separate.
Fact is, five gallons of E10 can dissolve about half a cup of water. (That's a quart for 50 gallons),
When it hits that limit, it stops pulling water from the air. That's why you can only get phase separation if water leaks in from the outside.
A sharp drop in temperature will do it, too if there's enough water in there already.
