Was changing the brakes on a friends Tahoe and decided to check his fluid. Well, it was GREEN.
I couldn't tell what color it was at first since it just appeared dark. There was also some type of solid at the bottom of the resevoir. Took the Res off, poured the fluid out and saw the green tint. Then flushed the lines, and there was green fluid in there too. Can brake fluid store enough water to permit the growth of algae (the truck had been sitting for about 1 1/2 years)?