Fuel methanol I've purchased will develop a "snow" like deposit in suspension with the fluid after it sits for a while.
I have been led to believe it is a lubricant or scent they add to the fuel but am not sure. I saw it in my WI system on a couple of occasions.
and started running a fuel filter in line with the lines to screen the crud out.
Not sure it your seeing the effect of the same thing but just a thought.
Have you tried putting a sample of your methanol in a clear jar and seeing what happens over time?
Larry
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