What do y'all use to clean the metal connectors that go into the bulkhead on either side of the fw?

pishta said
That's what the cable company has used for 30 years on their booted outdoor fittings...it doesn't work as a moisture barrier anymore? I've taken some crusty fitting apart and they are usually still bright silver under that crap. IIRC Mopar used axle grease later in the life of the the square era trucks in their firewall plugs.

Pishta. I don't know. Maybe different formulations?? Some with better moisture protection??
or maybe they make good seals (like on the boots) but not so good in direct contact???

Here's one of connector plugs I had used dielectric grease in a few years before. I was disappointed seeing this.

It's interesting you mention an axle grease on the trucks. My AMC era Grand Wagoneer has a dark brown grease inisde its firewall connector. Terminals actually look pretty good.