RE: Antifreeze

[Virtual Bob <h93young@creighton.edu>]

>...
>"PHOSPHATE FREE" antifreeze was something exceptional.  The plain Prestone
>green stuff makes no mention of phosphates, but states on the label that it
>is "compatible with all modern aluminum cooling systems".  Does the Prestone
>green stuff in fact contain phosphates?  If so, and phosphates are dangerous
>to aluminum cooling systems, how does Prestone get away with advertising
>"aluminum compatible" on their product?  I can certainly buy more VW/Audi
>...

The last time I asked the question, the answer seems to be that there's
sacrificial agent that prevents break down of aluminum. But when this
agent is gone, then the protection is gone -- or so the story goes. That
means you have to stick with flush schedule very carefully.

If you want something that's phosphate-free, then look for packages that
explicately states it.

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