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rick-l rick-l is offline
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Join Date: May 2002
Location: St Louis
Posts: 4,211
Subaru has a required "cooling system conditioner" for my WRX that looks an awful lot like stop leak solution.

They want you to add it when you change anti freeze.

EDIT I'm pretty sure it is for the head gaskets.
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Rick
88 Cab
Old 07-29-2011, 09:24 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #17 (permalink)