dimethylpolysiloxane?

[NutmegCT]

I just got new plug wires (Beck/Arnley). Included in the box was a small packet of "dimethylpolysiloxane". I figure it's a dialectric grease.

I've never ever used any kind of lubricant with ignition wires.

Is it just to help the rubber caps slide down on the coil towers?

Or is it to be put on the wires' metal terminals (both ends) and on the plug terminals?

Thanks.
Tom

 

[BustedKnuckles]

Try this...https://askville.amazon.com/di-electric-grease/AnswerViewer.do?requestId=511336

 

[Banjo]

Good article. He states things very well, except:
"DO NOT ever grease an oxygen sensor connector as the sensor is vented through the wiring on many sensors and the grease will contaminate sensor over time and it will cease to function."
He is right about keeping di-electric grease away from O2 sensors. You don't want to contaminate them, they need to read atomspheric O2, but they have never been "vented" through the wiring. I don't know how that would even be accomplished.
"Bon-jour"

 

[TR3driver]

Is it just to help the rubber caps slide down on the coil towers?

Also helps keep the silicone rubber boots from sticking to the plug ceramic, making it easier to remove them later without ruining the wire set.

Not essential, IMO, so don't use it if it bugs you. But since they give you the little sachet, why not use it?

 

[LarryK]

Waterproofs eletrical rubber connectors too! Try not to let set on corrosive metals like aluminum and copper. Rubbed on the rubber or silicone boots and pushed on the ceramic does keep them from sticking, especially if plugs or coils are in a hard to reach areas.

 

[Lukens]

Try this...https://askville.amazon.com/di-electric-grease/AnswerViewer.do?requestId=511336

Okay article, but I never put too much stock in these kind of sites. Like Wikipedia, they never qualify the authors. I'm just an old skeptic.