I used Labelle 102 gear oil to lube the wheels and they run fine. I did notice mine does run a little jerky when you start to reverse it. I think the ears wheels start to move before the front. It does run perfect on 054 but the small rear wheels did slip off on a S on 042. Maybe it's because I use the large diaphrams. I have a old Loco Sound version from the firsr run and it actully runs and pulls better than the new Proto 3 version.
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