Thanks to the suggestions from members of our community on my last post, I recently added 2nd electrical pickup rollers to several of my Lionel passenger cars. They're installed, they work great, and the lighting flicker has been 99% resolved!
I do, however, have a question regarding the small copper contact points that rub against the axles.
As you can see, the small copper plates simply rest against the axle bar as it rotates. I assume the friction here isn't going to be extreme, but the original rollers on the other truck are all lubricated with some kind of grease.
Should I lubricate these points as well? What type of grease should I use? I assume it needs to be some kind of electrically conductive lubricant, but I don't know what the best option for that is.
Thanks!