After I realized that WD40 made my cube spin uncontrollably. I preceded to then destroy it even further by tearing off the core pieces. If you can't see it in the video, I am trying to show you the cracks from where the WD40 ate away at the plastic. No other cube of mine has these cracks, except for this one which I sprayed WD40 in. Also notice how the spring is coming out of the core arm, and it has now become nothing more than a piece of plastic.
WD40 made the cube turn horribly. And this is why I would NEVER recommend using it for Rubik's Cubes. Only squeaky doors, and other stuff listed on the can.