Don't put "Stop Leak" in ANY cooling system (nothing peculiar to DeLo). Is super glue, JB Weld, and goodness knows what else rolled into one. Usually stops up everything EXCEPT radiator (well, that's not true. Will stop up the little cooling passages, which are the important parts, but leave side channels unaffected, which is where leak usually is). Mechanic buddy once pulled what looked like big grey sausage out of a water jacket. Was wayward Stop Leak. He calls it "Stop Up". Note that a stopped up water jacket will also trap air. Bill Robertson #5939 >--- In dmcnews@xxxxxxxxxxxxxxx, "Dave Swingle" <swingle@xxxx> wrote: > Replace it. Not repairable, don't put any gunk in this cooling > system. > > OEM or brass replacement, doesn't really matter. OEM fits better, all- > brass cools better, cost about the same. > > Dave Swingle > > --- In dmcnews@xxxxxxxxxxxxxxx, "David Silek" <dsilek@xxxx> wrote: > > My radiator is leaking... Suggestions? Please send > reponses/suggestions > > off list to dsilek@xxxx . > > > > Thank you in advance, > > David Silek