DG I'd say at this poimt I'll just wash mine out. I do have one cap left on mine in the rear passenger side. I should have pulled it out to see if there was rust in it. Will do next chance I get.
I stuck my finger in the frame the first time I washed it and cut the end of my finger.. It was only a couple of weeks old then. I'd say my frame looks just as bad as the pics earlier.