CATCRD wrote:
Actually dielectric grease is non-conductive. Confusing since we are told to apply it to electrical connections, but its real purpose is to seal out air and moisture from corroding the contacts. The grease is actually (hopefully) squeezed out from the contact points.
http://en.wikipedia.org/wiki/Silicone_g ... ric_greaseI used the common copper colored anti seize on both my CRD's glow plugs without problems. Again, it is squeezed out from the thread contact points that conduct to the cyl. head, and it fills the gaps, preventing corrosion.
Correct. The reason for using antiseize is the galvanic corrosion between the steel jacket of the glow plug and the aluminum head. I also use the copper antiseize. When copper oxidizes, it only forms the green hue that we are all aware of. Oxidized steel forms rust. Rust is far more harmful to the close threads of the outer steel jacket of our glow plugs. Copper is very conductive material.