Glossary / General

dielectric grease

8 Episode Mentions

Too Afraid to Ask

Dielectric grease is a special grease that helps keep water out of electrical connections. In ignition systems, it’s used around the coil boot so moisture and arcing are less likely.

Technical Definition

Dielectric grease is a silicone-based lubricant/insulator used on ignition components to help keep moisture out and reduce the chance of electrical arcing. It’s typically applied to the inside of the coil boot/connector area rather than to the spark plug’s firing tip.

Hear It Discussed

"The other thing is, is when you're putting the bulbs in, use dielectric grease to keep the [534.8s] moisture out of the socket so you don't have any issue there and make sure there's no..."
The Car Repair Experts Answering Any Car Question You Throw At Us Under The Hood show 08:43

"Can I pack that connector with dielectric grease without concern or do I have to be aware of what sort of sensor I'm working on before I just randomly do that? Absolutely, you can always use..."
Ron Ananian, The Car Doctor - May 16, 2026 - Hour 1 Ron Ananian The Car Doctor 25:15

"dielectric grease them and all that good stuff when I put it together and [731.7s] so boy it's weird for that code to pop back up"
Fathers Day The Reckon Yard Podcast 12:06