Sparkplugs & Dielectric grease

[ghs215]

Sparkplugs & Dielectric grease...how should you grease a spark plug?

What if you get it on the conductor tip and spring inside the boot? There seems to be many schools of thought since its "non-conductive".

 

[peebee]

I'll be honest, and will probably be chastised for it, but I don't grease my plugs. I guess if you off road heavily with a lot of moisture it can probably help in keeping the coil pack boot from corroding. If you're going for it, just put a pea sized dab in the boot nipple.

 

[MikeInNH]

I've never used grease in over 40+ years owning and working on my vehicles. Even when I worked as a mechanic while going to college.

 

[Gecko123]

same here, never used the stuff for 30 years of car ownership and i have changed many spark plugs. I don't claim to be an expert but my personal experience, never had an issue with any of my cars. I just change the spark plugs when need and that should keep everything healthy.

 

[t-rex grrr]

I just followed this guy's instructions

How to change spark plugs - Toyota 4Runner 2006 - YouTube

 

[NuclearN8]

I only apply a light coat to the rubber disk on top and the bottom and exterior surfaces of the rubber plug cover. I apply it to keep moisture away from the plug contact surface and to keep the rubber from dry rotting. The dielectrica grease never touches the contact surface of the plug to the coil.

 

[Bob J]

I use it anytime I am working on electrical connections (including my spark plugs).... In some cases I've used it liberally and never had a problem with getting a good connection after.....

 

[Dylan]

I used it, but then again on the V8s which use platinum Denso/NGK plugs it's apparently not needed due to the coating they already have on the threads. I don't think it's an issue using the grease as long as you don't over tighten them which could be a problem from the added lubrication it provides. But mine still unscrew without having to bear down on the wrench so I'm not worried about it.

 

[KidVermicious]

I used it, but then again on the V8s which use platinum Denso/NGK plugs it's apparently not needed due to the coating they already have on the threads. I don't think it's an issue using the grease as long as you don't over tighten them which could be a problem from the added lubrication it provides. But mine still unscrew without having to bear down on the wrench so I'm not worried about it.

They're not talking about antiseize, they're talking about dielectric grease, which are two very different things. I hope you're not putting grease on your spark plug threads?

 

[Dylan]

They're not talking about antiseize, they're talking about dielectric grease, which are two very different things. I hope you're not putting grease on your spark plug threads?

Ahh you're right! I wasn't thinking, it wasn't dielectric grease. I put anti-seize on the threads and some dielectric grease on the tip of the plug that connects to the wire.