"Doktor Tim" says:

> Will Sierra hurt my car????? I don't know. I don't know means the only
way
> to know is run the experiment.

Not scientific by any means, but, I used sierra in my '84 for 8 years
while in Hawaii and never developed any leaks.  I have no idea what was
in it when I got it, but it was green.

After I got to Maine, I had to replace one of the heads due to a crack
between the valve seats that was big enough to allow compustion gasses
into the coolant and didn't find a great deal of corrosion at the gasket
surfaces.  I did, however, change the coolant every year (still do ...
but I'm now using non-phosphate EG green stuff).

Mike
'84 GL 7 pass
'85 GL Westy