Thanks. I'm a real novice. Problem I have is that I can't get to the motor to oil. I have an old Chessie system C&O 4301 engine. I can get it out of the plastic but there are no apparent screws to get to the gears. Any ideas?  I searched you tube and could not find an example for mine.

What kind of oil to lube the loco?

I can run a train immediately afterwards. But not the same one.

What's best to clean tracks and wheels. I did clean tracks with rubbing alcohol. I'm only using one engine at a time. Some last longer than others.

I have a train that I set up around the tree. The engines run for a while then stop. After a few minutes they can start again. Engines have been sitting around anywhere from 15 years to 35 years long. In boxes. Any ideas?