So I drained the transmission fluid out of my 2011 Equinox this weekend because I was curious since it shifts so much. To my surprise it came out near-black. At only 36,500 miles I could not believe what I was seeing. Does anyone know if they put a dye in that assembly at the factory to check for leaks? If so, I could see that as being a reason it was super dark/black. Otherwise I suppose I'll be draining & refilling yearly from now on.