Just Stop it With The Dielectric Grease

Mattax said
Those were the instructions that used to come in the kits which included a small plastic packet of the stuff.

I fell into this trap (trick of thinking if its good for A it must be good for B) until seeing this.
View attachment 1716454461
(That's a connector for a replacement F*rd Duraspark on my AMC Jeep)

Clearly not moisture resisting!

Here's the bulkhead connector on the some vehicle. It was filled by the factory with a dark brown
moisture resisting grease. Terminals all look pretty good.
View attachment 1716454462

Posted these photos before but thought its worth reposting here.
[EMBED content="post-1973479906"]What do y'all use to clean the metal connectors that go into the bulkhead on either side of the fw?[/EMBED]
Here's how I'd summarize it.
The dielectric grease is for resisting high voltage. If not used, the possible issue is carbon track.
The other components the main issue we're trying to head off is corrosion. Use moisture resisting grease to for this job. Insulation to prevent shorts should be provided by the connector and the wire support.

Looks like wide blade terminals in that bulkhead connector, due to the design of the male and female terminals the grease probably gets scraped off as the terminals go into each other. So with those style connections it's probably not as much of an issue, just work the connector in and out for a better connection if you have too.

I probably should have mentioned some styles of terminals that you could get away with, but it was late and I figured some people will fill in the gaps.

Anyway, the issues I've seen are with the looser fitting bullet style short an long terminals and other very small and skinny terminals of similar designs. These connectors with tiny bullet terminals can a PIA to clean out sometimes.