Dielectric grease should only be used on rubber parts around a metal electric connection, like spark plug boots, or wiring connectors, never on the metal ends. It impedes the conduction of electricity, not enhances it. Silver based electrical conducting paste is made for putting directly on the metal connection.
The Dielectric grease purpose, by definition is to PREVENT the flow of electricity.
Definition: "a dielectric material is a substance that is a poor conductor of electricity."
That's why it is recommended to be used on spark plug wire boots and other rubber insulator parts. It should never be used on any metal part or connection that carries an electrical current.
Even if it's wiped off, a layer of it remains, and is a barrier to the electron flow.
YES, your spark plug will still work, as will any connection that dielectric grease is used "sparingly" on, but it won't fire at maximum efficiency. Contarty to popular belief, you are not helping an electrical connection when you put dielectric grease on the metal parts. It does however establish a barrier against moisture, but at the expense of inhibiting the election flow.
There are products made to promote and maximize the election flow, they are called electrical conductive greases, and are usually silver based, such as this one:
Conducto-Lube
Unfortunately electrical conductive greases are more expensive and not found in auto parts stores. Too bad.
Z
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