At a train show in Santa Clara California this past weekend I doubled my roster of K-Line steamers (to 2). I now own a K-Line Mikado with TMCC and a K-Line NYC Hudson with TMCC. Overhauling these engines has revealed that the Mike has a ratio of 22 revs of the motor to one rev of the drivers...

Is it ok to use mineral oil in a Marx 666 smoke unit? I've heard people say it makes really good smoke and cost a lot less than smoke oil from Hobby shops but I don't want to risk damaging my smoke unit which is original and works quite well as is. TLDiff