I believe Lionel used quite a bit of Bakelite in everything from ZW (and other transformer) casings, accessory controllers (90, 390, UCS controllers) and track (UCS track, 022 switches etc).
I have typically cleaned and got some shine back using WD-40 sparingly. I have not seen any negative effects over time - has anyone had good or bad experience using WD-40 with Bakelite?
I recently read on a forum for restoring classic Bakelite telephones that some folks had a good experience with Avon Skin So Soft bath oil.
Any Bakelite restoration and cleaning thoughts or suggestions based on your experience?