I've heard that 1/2 ATF and 1/2 acetone is a fabulous penetrant but haven't needed any since I learned about it. I've seen claims that it will even free up stainless fasteners locked into aluminium parts.
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I, myself, personally intend to continue being outspoken, opinionated, intolerant of all fanatics, fools and ignoramuses, deeply suspicious of all those who have "found the answer" and on my bad days, downright rude.