The right stuff is the powder that comes in the tube.  It says "golden
seal" on the side.   (It is not the aluminum stuff.)

Some people also use the Subaru coolant conditioner.  This you can get
at any Subaru dealer for a buck or two.  Some of the Subaru's require
that the conditioner be used for the warranty to stay valid.

-Wes

Allan Streib wrote:
> On Jan 29, 2008, at 12:27 AM, Scott Daniel - Shazam wrote:
>
>> Either treat it with Bars Leak, which is the ONLY stop leak I
>> recommend, and I have never had it cause any problems ever.   Or
>> take the head off and measure things
>
> Which Bars Leak product are you talking about?  They have a lot of
> different ones?
>
> Allan
>