Kadee #KAD236. Kadee's driver cleaner is easy to use and efficient. Just hook the power leads to a 12 volt DC source and touch the brushes against the driving wheels of your locomotive from HO to O Scale.
Kadee #KAD231. 5.5 gram tube Also an excellent general purpose lubricant for use all around the layout to reduce friction in moving parts and bearing surfaces. Add a puff inside your couplers, move them back-and-forth a few times to burnish and enjoy smooth action of your couplers.