On Fri, 25 Sep 2009 06:20:07 -0500, "dave AKA vwdoc1"
> wrote:

>!!!!WARNING WILL ROBINSON!!!!
>I worked on a vehicle where someone dumped some stop leak in the expansion
>bottle.
>That stop leak was able to close up a 1/2" hole but unfortunately that hole
>was the expansion bottle outlet pipe and hose. lol
>That vehicle overheated until things were unclogged and the leak elsewhere
>was repaired properly. ;-)
>
>It might be best, in your case, to take off the radiator hose and dump that
>stuff directly into the radiator!
>Of course replacing the radiator is an option too! <g>
>
>JMHO

I was just about to say the same thing! yes, remove the hose and use
that method, don't dump in the expansion tank...