A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Art Leung
Date: 2022 Jun 14, 05:22 -0700
Eric - given that the silicone fluid is called for in the maintenance manual, it is a pretty good guess that the fluid is, indeed, silicone fluid. I'm not sure what might happen if you mix fluids, however. You could just leave the port open for a couple of days or try the filling procedure in reverse to try and extract the fluid.
I am curious what you end up doing!