Walt,
You are correct in your assessment that it does not look green. Unfortunately, some manufacturers make DGLE more green than it actually should be. The original Pennsy recipe was something like a quart or gallon of green added to a barrel of black (not the exact recipe, but something like it). It makes it not true black and not true green, though I bet it did vary some from batch to batch. Despite it not looking too green, the Pennsy did call it Dark Green Locomotive Enamel (DGLE).
My original concern was that using regular black paint would make it stand out on a shell that is not true black. I have seen people use black markers and black paint to touch up engines that have been painted in DGLE and it tends to show the touch up more than it hides it especially in certain types of light.
