After learning that silicates (powdered quartz) in coolant kill Honda bike
waterpumps, I have been running Dexcool in all my vehicles, not wanting to
spend $30 for Hondaline pre-mix once a year.
I didn't think too much about it when my VW diesel blew a headgasket last
fall with less that .0015 In. warpage. I have been running Dexcool in my
Goldwing for 3 years, and it blew a headgasket last month. I found less than
.001 In. warpage and the gaskets where they were free-standing in coolant
had all the material either gone or blistered up badly. A short Google turns
out that lots of people have had similar problems.
I changed the coolant in the other 6 vehicles.
Defender of Freedom, Advocate of Liberty
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