Reply to "3 - Rail Track Cleaning Car"

I use the original Lionel 3927 modified with a Scothbrite pad cut to substitute the round foam pad. I cut a paper towel and put a several wraps around the rear track wipe to pick up the dirt. The towel saves on replacing track wipes. Put alcohol on the Scothbrite, run it till the towel is dirty then peel a wrap off and do it again. I usually pull it with a TMCC or DCS engine for better speed control over the cleaning process.  If the track is too dirty may have to use a postwar engine until track is clean enough for one of the others to run.