I use RV antifreeze. Some guys use regular antifreeze others use windshield washer fluid. I take the wheel off and break the bead on the valve stem side then just pour it in. I'm getting old and my memory is going, no make gone bad but I think I got about 9 gals in my 23X12X10.5's so 70 lbs. give or take per wheel. Gotta get around to doing my Supers they are way too light in the butt, or I need to drink a lot more beer.
