Is this real bad or what?

[TooManyToys]

Ford in their tech bulletins go out of their way to state the plugs have a coating on them already and not to use anti-seize as that may degrade the electrical contact between the plug threads and head.

 

[nelliott500]

Electrical contact?

 

[TooManyToys]

Only way it works.

http://en.wikipedia.org/wiki/Spark_plug

 

[oddball]

Isn't copper anti-seize highly conductive? Agreed that non-copper could easily cause problems.