Laughing out loud, tranny fluid!     I don't have any of that but I think I mentioned that I bought some German engineered (no kidding) power steering fluid based on the fact that it was at least 50% synthetic and synthetic oil is always a good thing. So Rambo was pulled out of his bunk and was a little stiff at first and dragging the carriage, and when I figured out that it was not the tracks but some part of the internals that were gummy (key evidence, only dragged in one direction of travel), I just mixed a little steering fluid into some mineral oil in a wash bottle and squirted it up inside whereabouts I felt the escapement should be, and d**n it if didn't free the old soldier right up!  It was a front line repair but it did the trick. 2000 words so far and just coasting...

That's a great idea about the cards!  I'm going to get some blank ones, and yes it does have a lot of charm right now with its fat purple pica - "How did you get that typewriter font on the card?", ... "I used a typewriter". 

I always use automatic transmission fluid--tranny fluid--it's very thin, it's detergent, and it keeps things oiled smoothly for a very long time.  An old mechanic taught me that trick.  He used to heat it up and pour it into the cylinders of seized engine blocks.  After a couple of days, they freed right up.  So I tried it in a few of my typewriters, and some of my chronic sticking problems in those machines just went away.  A lot of people have told me that I should use another type of oil, or that I shouldn't use oil at all.  I'm sorry, but I do not feel like typing with a dry typewriter today, nor will I feel like doing so tomorrow.  I'm a mechanic, not a museum curator.

Going either to one extreme or the other is a bad idea when it comes to maintaining any type of machinery, including typewriters.  Yes, you're going to have idiots out there who could foul up an anvil with a rubber mallet.  They'll drop, say, a laser jet printer, in a vat of 90 wt gear oil, hoping that will fix whatever problems they may encounter with it.  In all the jobs I've held down in the last thirty-one years, I've seen quite a few people this dumb.  Ron White once said:  "You can't fix stupid.  Stupid is fo' evah."

As for the IBM B Executive,  you have to be very very ultra sparing where you put oil.  Never squirt it in.  You have to dob it in, either with a q-tip or vary sparingly with an old toothbrush, and be sure to wipe out the excess.  You don't want any oil to get onto the power roller.  I have found that charcoal starter will usually dry the power roller enough to where it has grip enough to actuate the cams.  You may need to either have the old roller re-rubbered, or find one somewhere that you can reinstall.  I believe there should be a thread in this Forum as to how to install a power roller.  Should you need to do so, let me know.  I've fixed a many type bar IBM machines--standard and Executive.

All you have to do is to bend a hook in what you have left and reattach--done it a million times.  Worse comes to worst, these springs are interchangeable with anything up to MC.  And, believe me, at least here in Central Texas, it still occasionally rains Royal typewriters here and there.