I just added a drop of Kroil myself, it’s a fairly standard penetrating oil, and is definitely NOT ideal as a lubricant. I figure that if mine ever starts getting too caked up with gunk, I’ll just take them to the sink and scrub ’em down with some Simple Green to take it all off, then add another drop of oil.
It took care of the problem entirely for me. I’ve now actually got just a tad bit of “Slick 50” Teflon-bearing lube on them.
