Hi,
I just jumped in and filled mine with WW fluid. Why?
Well, the cost of antifreeze and the environmental concerns wrote that off.
Calcium cloride meant a tube and that meant for me that I would pay someone to do the job...expensive.
Had no idea where I could get that beat sugar juice...
Was uncertain I wanted to pay around $500 for foam filling the rear tires...but I am certain it was the right thing for me to do on the fronts, and I had them foam filled for about $140 for the pair after the first glass cut puncture.
I just figured that I would do it myself cheap and see how I liked it. I am not sure of the environmental concerns with WW fluid, but I would guess ww fluid is better than anti freeze if you have to dump it on the ground. Not sure though.
My logic was to go the cheap route, do it myself and see how I liked the result.
Answer is that I like the result a lot. No punctures to date, easy and cheap to do yourself.
Not sure about the danger of rusting the rims...
For what it's worth...
Bill in Pgh, PA
Did not reread the entire thread...hope I did not say this same thing sometime earlier...