ning
Elite Member
Yeah I read about people using RV water system antifreeze because it's non-toxic; the other will kill your dog fast.One local tire store is or was loading them with used auto antifreeze for a low price. It's a great way for them to get rid of it; but there's no way that I would want it on my property. Get a slow leak and you're spewing that crap everywhere.
WW fluid may cost more today, but the calcium may cost you more in the long run, depending on if you keep the tractor long enough for the calcium to destroy your rims or if it becomes someone else's problem...WW fluid is cheaper than a 50lb bag of calcium and 40-50gal of water? I think I paid $25-30 for 50lbs of ice melt (calcium chloride) at the height of winter when I filled my tires.
Also, if you've got say a 12.4-28 tire, that's about 35 gallons of plain water per tire, or 27.5 gallons of water with 6 pounds of CaCl2 per gallon, or 138 pounds of calcium per tire, or six bags for both tires. It may cost more than $25 if you're actually trying to maximize your tire loading (75% fill for tube tires; for tubeless, increase by 20%) [source].