In a message dated 12/3/2010 1:28:32 P.M. Eastern Standard Time,
fonman4277@COMCAST.NET writes:

Actually, I've used it and still have a leak from the right side  head.
Also, as far as I know, it was only DOHC 2.5 Subies that had leaky heads  for a
while, not all of them-certainly not my neighbors 2.2 with over 300K
miles! I only used one bottle of the "coolant conditioner", maybe I should  dump
another one in there-it was only $2.50 a  bottle.

hey jeff  all the subies even the old 1.8 and 2.2 had problems , just  not
as bad as both of the 2.5L did even the SOHC and the DOHC.  I think  they
improved them in 2006 . On vannies it normally will take at least 2 bottles
of the subie stuff to work and even then I have seen some where nothing other
 than fixing them worked.  later  mark d