I just loaded my tires on my JD4700, 16.9x24 R1 tires with a new product called Rim Guard. It's made from sugar beets and looks like molasses and won't freeze. It's 1/2 lb. heavier than calcium chloride per gal. At 11lbs. and cost $1.50 to $1.75 per gal. + labor. I used 122 gallons, 75% full...