....and since we never know just how bad something is stuck we will probably never know what "works the best". I personally like Kroil but I do have PB Blaster, liquid wrench, marvel mystery oil and a few others on the shelf. Seems I "decide" which I use based on how much time I have???
Darn it, now I've got to get some acetone to mix with some tranny fluid. Never know when I might "decide" to try some of it.

....now wintergreen oil is a new one on me! Maybe it will at least smell better than some of the others?