Hi all,

Just wanted to say thanks for the all the explanations on my question.  I
believe the core answer that let's me understand it is that the contacts
have enough force (either spring force, or bolt, etc.) to push the
dielectric grease out of the way, and allow the metal to make contact.
Certainly makes sense on a sliding male/female connector that is typical for
so many connections on cars.  It was a little counter intuitive, and being a
skeptic I wanted to argue that there would still be a microscopic film of
grease adding resistance.  But I give up :)  , intuition isn't fact,
science, or testimony and I am happy for the explanations from all the
experienced people and need to go buy some!  Thanks all.

Roland