Some of the crowd remembers this kit well.
I had a friend, since deceased, that was a job shop print owner, that build one many years ago, in attempts to keep his Tru-Scale(another topic) brass rail clean.
Being that he was in the printing trade, he keep a bith of acetone on hand for offset press cleaning.
He said what the hey, one day he decided to experiment with this cleaner, into the tank on the car.
Put it behind a locomtove and let it go.
One thing went wrong, the trucks on the track cleaning car had plastic wheel sets.
Figure it out…