I've been using moly (moybendenum disulphide) for over20 years now in all my vehicles, and nothing ever seems towear out. I've had issues with one producer of moly inAmerica actually sending PTFE in moly labeled containers.They were actually committing fraud. I was glad to discoverLubro Moly with a sealed at factory bottle.It comes fromGermany and is recommended by some European car manu-facturers. The price is very good and quality appears goodThe worst aspect of all moly is it is grey and turns oil grey.Use as directed and regularly; for a cooler, less friction, morepowerful running vehicle.