quote:IMO, it fails miserably as a lubricant.
I am not a big fan of WD-40, I posted the manufacturer's claim because the manufacturer encourages the belief that it is a lubricant, and many people believe that.
I use WD-40 as a metal protectant on tools, and sometimes as a cleaning agent / rust remover.
It does work as a penetrant in some cases, but I find that PB Blaster works better.
Liquid wrench works well for me too.
I prefer to use CRC 2-26 as a metal protectant on the metal parts of trains that require something.