Does anyone disagree with JS's statement that I do not need tail
ballast antifreeze for flying at -5C for six or seven hours? I can't
imagine six liters of sloshing water freezing at only a few degrees
below. But I don't have practical experience in this area and I don't
want to make a really expensive mistake.

I appreciate all the feedback but I'm specifically asking about (1)
methanol, (2) ethanol and (3) none. I'm familiar with all the other
options from older posts.

Ely in 3 days -- can't wait!

~ted
V2C "2NO"