Not Recommended-Conductive grease use on electrical connectors
Dielectric Grease 0.33 oz. Tube | K.L. Jack
MOLYKOTE® G-5008 Dielectric Grease
Permatex 22058 Dielectric Tune-Up Grease, 3oz. - High Performance Dielectric Grease Used To Protect Terminals, Spark Plugs, Wiring And Other Electrical Connections Against Salt, Dirt, And Corrosion : Amazon.co.uk: Automotive