adds fluid capacity to the system to help prevent fluid boil over. I'm not a advocate to getting rid of it. I think it's kinda misunderstood and serves a good function. I don't struggle to bleed it, it always seems to behave for me.
SRC="http://www.yugobernie.com/images/TTnet_Sigs/yugobernie_ sig _b12m.jpg"> Bernie Bilskiberniebilski@cox.net President of Z-Car Club of Northern Virginia