I've been running Mayhems Pastel Sunset Yellow since November 2013 now and its slowly but surely been getting darker and darker. Color started off nice and bright, but now it is about the color of orange juice. Loop has never seen any other coolant- have only used Mayhems Sunset Yellow Pastel mixed with distilled per the instructions. No other additives, chemicals, coils, etc have been added.
Here's the progression:
I don't think this is normal at all. I had wanted to switch over to Mayhems Pastel White, but the color changing like this with white coolant would be pretty awful. Any ideas? I thought I would ask, maybe its a bad batch or something. I'd prefer not to move to distilled w/ a coil, but the coolant is not at all aesthetically pleasing like this.