Same here. I have beet juice in mine, popped a valve stem one time and purple sprayed all over the place.I bought a John Deere tractor and requested that fluid be put in the rear tires.. a couple years later I was working at a buddies house with my tractor. My buddy came running toward the tractor waving his hands for me to stop. The valve stem had loosened and when I looked at the yellow rim with purple fluid running all over it , it took me a few seconds for me to remember that the dealer said they had put beet juice in the tires because it would not freeze.
Advantage to the beet juice is it is non-corrosive compared to the calcium chloride they used to use in wheels. I have seen tractor wheels with patches on top of patches welded on because the stuff would eat right through a wheel in just a couple years. Also, the beet juice provides just a little more weight. In my light New Holland, I need all the ballast I can get.