Giving this some more thought, Gunrunner John's use of 2000 and a light abrasive pad, on the outside rails, would be a good choice, because of drive tires. Many only clean our engines, but car trucks also contribute to poor track connections , so one must keep rolling stock wheels clean. Power for engines, tracks cirt for signals and assy depend on clean track. This is the price we pay for having a smooth operation.
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