Early June there was a member who submitted a post outlining a problem that he was having with the smell of anti-freeze on his WR, but could not find the leak. I have had the same problem for the past two seasons but could never locate a leak nor did my anti-freeze level drop noticeably. While mountain riding in Cadomin Alberta this year the leak became noticeable but still not to the level of being problematic. The leak was right above the exhaust on the part of the rad where the fins meet the bottom reservoir area. Has anyone tried those stop leak radiator additives. I am very hesitant to add something to like this to the cooling system. Other then installing a new radiator $$$$$$ does anyone have any suggestions?