I was originally thinking too using blue tubing for cooled water and tubing color eventually turning red just before radiator.
Nah, I said. So right now I'm going for clear tubing, badass car-rad and turning my Sonata II totally black with red lights. I'll post a worklog or something later this week, and I'll finally add my baby to this sweet WC case gallery.
And leo_bsb, that orange tubing looks good for me, alltough you'll have to go orange with the rest of your setup too, because those tubings are quite domating. And change that coloured liquid :confused: