I go with Jorge. My experience with various lubricants has been variable but mostly bad. To make your wood parts slip (like the older negative carriers) try rubbing a very little bees wax on a spare carrier and slip it in and out a couple of times. Then wipe it down with a soft lintless cloth or a product like Kem-wipe. It will not migrate into unwanted areas. It lasts a long time and is quite stable.