I've always used silicon spray but a couple of weeks ago I spotted a can of pams spray-on canola oil in the kitchen and thought there's no harm in trying it, much much better than silicon, you can even lick your box clean with this stuff.....I know what you are thinking :sneaky2:, so unless there's any longer term problems with it I'll keep using it.
Another thing I found with lubes is that lanacote is not the same as lanox, they are both lanolin based but lanacote in a spraycan collects dirt and leaves a thick tacky film on your tools and is more suited to weather protection, where lanox is more like an oily lube and not as thick and greasy.
Would be interesting to hear if anyone has had any bad experiences with there tool lube interfering with paint?