Dang. I wish I had known that. I used steel wool on the tracks to clean off the rust. I did afterward use a rag with WD on it to clean it off. I think I got it all off but let me know if I need to do something to the track further. Thanks for the input.

Hello all. I am not an avid train collector. I had an O gauge when I was a kid in the late 60s. I ran across one from a neighbor. Its a Lionel set he got as a kid in 1949. comes with eng. tender open car tanker and caboose.  It comes with transformer that was original and also a rotating flood light and stop light. He also had an extra dual transformer 90 volt and three cars that are not original to his set he picked up. A tanker, caboose and log car all O gauge. I bought it for 90 dollars. The eng. works. Tracks need some cleaning. Did I do OK or not? Thanks for any help. I will post photos later today.