I hate wasting expensive automotive paint. But it's better than making a mistake.. So I have a half gallon of red acrylic enamel, and some partial quarts of other colors. Figured I might mix them into a bitchin' maroon or something and paint my heap with it. Guess it doesn't work that way. I can get a decent orange, maybe, if I mix in yellow, which I have almost two quarts of, with the red. Anything else is pretty funky, so far. Wasn't really thinking orange but I'm not too picky. If I did use something like this I would spray a test panel, wait and see what happens. I could always paint my tractor.. The red in the photo is not that orange, just on the top from not being fully stirred, same with the yellow.