btfarm America First! Messages 19,358 Reaction score 10,187 Location Sandwich, Illinois Dec 5, 2009 #21 The only stop leak that I would ever recommend is the silver seal flakes. But they're for small pinholes only. They don't plug your heater core.
The only stop leak that I would ever recommend is the silver seal flakes. But they're for small pinholes only. They don't plug your heater core.