While applying danish oil to a piece, I accidentally spilled quite a bit on the cast aluminum base of my planer. I didn't notice I had done this, and the oil has semi-dried to a gooey substance which obviously interferes with smoothly running a piece of wood through the planer. I'm wondering if anyone has any advice on what cleaning products to use to clean up the spill? I want to be careful not to damage the planer. Much appreciated, in advance.