Dielectric grease is for the actual metal contacts. Not really for ease of manipulation. It's not clear how the dielectric it helps with conductivity other than keeping out water and air that contribute to corrosion. However, it is proven to prolong the reliable lifetime of mechanical electrical contacts.Initially, I thought this thread was some kind of joke. Would lubricant make for slicker lumens of headlight visibility? Does it grease the skids for light rays?
I wasn't even going to post here.
But I was replacing all my light bulbs this week, adding LED upgrades where possible. Top end LED headlight bulbs cost over $120 per pair. Then, I attempted to remove the Halogen headlight bulbs that had been in the car for 14 years.
I can see where a little 3-in-1 oil or Teflon grease would be helpful for a forthcoming bulb-exchange. My fingers are a bit stressed after fiddling with the bulbs and wiring harness.
But Joebklyn may have properly interpreted the mechanic's recommendation.
It’s also used for coating battery terminals so that they don’t corrode from reacting with hydrogen gas venting from the battery.Dielectric grease is for the actual metal contacts. Not really for ease of manipulation. It's not clear how the dielectric it helps with conductivity other than keeping out water and air that contribute to corrosion. However, it is proven to prolong the reliable lifetime of mechanical electrical contacts.