Hi all, Suddenly, all my locos started slipping on a grade that they used to handle with no problem. Even with only one or two cars and even a helper from behind mattered not. The grade that was a piece of cake for any of my locos pulling a long train had seemed to turn into a toboggan run over night?! It was a real mystery. I did not oil the track. I thought, did my power supply get weak? Did all my locos go bad at once? Do I need to clean the track? I just did last week. Then it dawned on me, I’m trying out ULTRA FINE GRAPHITE POWDER on a few of my couplers that sometime stick. I puffed it on the couplers, 6 in all, while the rolling stock was right on the track. I think this stuff got spread all around. Agree? If this is the problem, do I hafta clean everything? Or will this stuff defuse/disappear with time (like oil does)? EK http://www.railimages.com/gallery/kyleengelmann announce1 Lesson here; Apply graphite to rolling stock at workbench, not on layout.