David Hayward wrote:

> The product is simply a GM COOLING SYSTEM SEAL TABS (part no. 1051687). The
> make up (as shown on the back of the pkg) states it is made from GINGER,
> ALMOND SHELL & BORIC ACID.
>
> Do any of you engine experts know anything of this product or have any
> experience with it ?

I've heard an ancient tip from generations ago, to drop some cinnamon powder
into the coolant to stop seeping coolant from small holes in radiators. I've
tried it once, in a friends Peugeot, it worked for a couple weeks.

PerL
87 Syncro 112i