I would like to revive this thread as my 06 X2 is leaking in the exact same spot and I have tired a couple of different options to seal the crack with the same results as the original poster. Has anyone managed to fix a leaking KGB tank? Or have any suggestions that are different than what was already tried?
2006 Mastercraft X2
1995 Mastercraft ProStar 190, New Dimension Tower
1990 Supra Conbrio