Borrowing from the Chrysler experience (Subaru head gasket problems)

Discussion in 'General Motoring' started by Sh.N, Jan 25, 2005.

  1. Sh.N

    Sh.N Guest

    There are now several new "Block Sealer" products out with sodium silicate
    in them, the most popular being the K&W brand. The alchemists called sodium
    silicate "water glass" since it turns to glass when dried. When added to
    coolant, first it is sucked into a crack by the intake suction, then the
    exhaust blast dries some of it out and turns it to glass, making the leak
    smaller. This continues with each stroke, the leak getting smaller and
    smaller as concentric layers of glass are laid down, until the leak stops
    leaking. Genuine MOPAR antifreeze, recommended in Chrysler owners manuals,
    contain a small amount of sodium silicate to stop internal leaks as they
    develop. Hence, leaking head gaskets and cracked heads are usually only a
    problem if you haven't been using genuine MOPAR antifreeze as Chrysler
    recommends. Sure you have them, but you never have cause to know about them.
    Sh.N, Jan 25, 2005
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