If it promotes conductivity i wouldn't use it as that seems to be something like melted copper grease and you want zero conductivity between the 2 adjacent terminals otherwise fuses start melting if things work like supposed to. A dab of silicon grease or dielectric grease on terminals is good enough. Like Brian said don't go filling the connector until it squirts... LOL
I order the jet lube to keep around just in-case I needed later on. Should be here by Friday.
Check out Jet lube site they make a lot of products.
http://www.jetlube.com/