Sorry but traction tyres are 'muck-spreaders', likewise plastic wheels, I use neither on track or anything oil based, as far as I'm concerned it's banned if ya want good running. For tunnels, and the like, use track that has never been touched by any kind of abrasive - even any kind of pencil-lead, keep it clean, and smooth for excellent running, the slightest scratch on the rail-tops can cause trouble.