Had BCS check out the slide locks when we were there a year ago. The tech said he removed all the black auto body fasteners from the slide lock covers, cleaned and lubed the mechanism. He replaced all the auto body fasteners with new and he said how expensive they were to replace, but I can't remember the cost. The silde locks work, I guess is all that matters. I read the same advice about pouring a quart of oil down the side, boy, I bet it takes a while for all that oil to drip out.