If you've ever had to get a rusty nut off of a rusty machine screw, you know how aggravating it can be to get it to break loose. So, imagine my surprise when I found this post over at Curmudgeonly and Skeptical
Imagine that. A 50/50 mix of ATF and Acetone mix works better than WD40.
I've been using ATF as a gun oil for a while, but I never thought about using it to loosen rusted bolts. Is there anything ATF won't do?