Yes, WD40 was not designed as a lubricant, but it does have uses as a lubricant and is in fact advertised as such in the WD40 website. However, it's use as a lubricant is very limited - it's only good for minor moving parts where lubricating properties is not critical. Who hasn't used WD40 to stop a door hinge from squeaking or pretreat a bolt or a nut that has a tendency to freeze? It is definitely not an all purpose lubricant.