I've been using the Dex-Cool stuff a number of years without any obvious
ill effects. I recommend that all the green or blue stuff is removed for
best results. One effect of this stuff is that leaks become obvious.
Leaks will leave a large orange trail of crud. It has been noted that
any restrictions in the cooling system will cause this effect to clog up
radiators and heater cores if they are not perfectly clean. I do not
know why but my 1999 motor home with the Ford Triton V-10 has numerous
warnings in the owners manual not to use anything that resembles the
Dex-Cool.

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM] On Behalf
Of George Thorburn
Sent: Sunday, June 29, 2003 12:54 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Prestone anti-freeze (Dex Cool)

Hello List,
Is Prestone long life anti freeze OK for water boxers?  It says on the
label that it meets GM Dex cool specs.  It also states that is free from
phosphates and silicates.
Thanks,
George
'85 Westfalia