Does anyone here know where I can find the brown/tan corrosion resistant grease GM used inside the tail light bulb connectors? The grease in some of the connectors on mine has turned hard and I’d like to clean them out and replace the grease if possible. Thanks.

 

That particular product has been replaced/ superseded by modern day DiElectric Lubricant (non-hardening).

However, it should only be used when there is an issue with water intrusion/ corrosion...
Dielectric Lubricant does not conduct electricity (contradictory to common belief)...

So DO NOT get any on the Electrodes/ Electrical Contacts!

 

I was cleaning my tail light connectors and wanted to know what GM used so I can pack more in. If I can find it, would regular tan chassis grease work just as good?

I don’t want to remove the original grease because it looks like it’s offering good corrosion protection and the plated bulb connector pins still look like new. I figure it’s some kind of industrial compound grease used for corrosion control in electrical connections, but I don’t know the brand or type of product they used.

 

Can someone else please help me convey/ explain to the OP what the situation is?

Thank you!

 

The situation is I do not want to scoop out all the original tan goop from my tail light connectors. Since it seems to be offering good corrosion protection for almost 40 years, I rather just add more if I can. If I use dielectric grease, I will have to clean them out and then replace it with dielectric grease which is generally more watery than what was originally in there. I’d rather keep the original thicker grease in there and just add more. So, that’s why I’m asking about what kind of grease GM originally used and if I can still find it to add more inside the connectors.

I rather not create a debate about whether or not the grease was used to enhance electrical contact. It obvious the grease was there to keep moisture from forming corrosion on the tail light terminals inside the connectors.