Originally Posted by NCSUMike

YES, I agree 100%. In my world, WD-40 is only used as a penetrating solvent/lubricant in parts removal, a 1st step degreaser/adhesive remover, or as a surface rust inhibitor. Anything more, is an atrocity (well, I may have left out a few other "good" uses, but that's pretty much it for me).

Makes me wonder how many people have sprayed WD-40 directly on their disks/calipers, because their brakes were "making this annoying squealing sound".