Sounds like a surrogate for Aero Kroil.
-------- Original message --------
Date: 4/24/23 08:56 (GMT-07:00)
Subject: Re: [ARC5] [Milsurplus] Penetrating oil test -
I've been told from aviation sources that a 50/50 mixture of automatic transmission fluid and acetone is the best penetrating oil for stuck screws. But I have not tried it. Yet.