Hi Folks,Strange question I display a lionel SD50 diesel engine with my other engines (steam & diesel) the problem with the SD50 is that it seems to sweat in certain areas. It appears to have the consistency of water or condensation with no oder.I don't believe it is a byproduct of the plastic but I am not a chemist. I have not had any similar problems with any other engines and there are no drastic temperature changes in my home.If I wipe it off it just appears again. Any input would be appreciated. Puzzled in Michigan. RailDog

You sure it not of those Religious eligous miracles ?
Ok just kidding!!!

I think what u have there is a over lubercated engine as u use it it must be spashing every where , to verifie this next time it sweats get a track cleaning chemical and wipe the track I'm sure u will wee the problem on the rag also. Good luck