Well since it has been drug up....
If y'all have never herd of a product called kroil before, find a local HVAC supply shop or a local gun shop and see if they have it. It is hands down the best penetrating lube there is, no joke. Having working in commercial HVAC for a few years I've learned that it is worth it's weight in gold for seized up parts, pipes, bolts, cleaning, and lubricating some parts. If you have access to some, find the nastiest, rusted up bolt you can and spray It on the threads right above the nut or what ever it screws into, and don't blink. Right when you spray it, it goes to work some how being sucked down into crevasses that are not even viewable to you, as if there's a vacuum on the other side! That's what I use to lube my clutch cable and that's it, no need for fancy tools or old school tricks, just a little spray up top and a little spay down bottom. You really don't have to spray it on the bottom end but if your like me and like instant results then go ahead and hit the bottom too. Now a small can isn't cheep, I think $17 but it last for a long time and it's one of those things that a little dab'll do ya....
I think I should be a kroil salesman....