Originally Posted by Shannow
Originally Posted by jhellwig
Originally Posted by DoubleWasp
Originally Posted by ctrcbob
It does NOT attract moisture/water. It absorbs moisture/water that is already there and allows it to burn.
Lies. I've pumped tanks that took on enough water to render a boat dead from from water absorption by ethanol fuel. Systems that checked out to have zero leaks anywhere in the system to allow water intrusion. The water was completely separated from the fuel. Pumped a solid gallon or more before stank fuel came out.
I hate getting into ethanol arguments.
90% humidity air at 86 degrees would take 138 cubic meters of air to hold a gallon of water. .
No, it's YOU who doesn't get it.
10 gallons of E10 has … lets calculate it out, carry the zero, and ignoring rounding errors … a gallon of ethanol.
When there is sufficient water in the two phase mixture, the entire ethanol component bombs out, because it prefers greatly to be with the water than the gasoline.
That's a WHOLE gallon of stuff that's sitting at the bottom of the tank.
Well it's more than a gallon, as it's got the water in it as well that it got out of the atmosphere...and note that the atmosphere around a boat is pretty humid...PLUS it wasn't used over winter, which is typically the coldest pat of the year.
Below is a chart of the amount of water it takes per volume of E10 to precipitate a phase change...above the line and you are golden...below the line and the ethanol bombs out (with the attached water)
Note:
* that it's temperature dependent,
* once it's dropped out, raising the temperature doesn't make it go back into solution
* how small a quantity it is...about a percent.
While I don't recognise the technique that you used as valid doesn't that bring it to under a month ?
https://www.epa.gov/sites/production/files/2015-09/documents/waterphs.pdf
Saturated ethanol isn't going to fall out of suspension by water absorption from air alone. Once saturated it doesn't absorb more water. The water has to get in through another means to cause phase separation.