Prestone® Extended Life 5/150 Antifreeze/Coolnt
it appears to be compatable with DEX-COOL and Honda engines...
http://www.prestone.com
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http://www.evanscooling.com/main27.htm
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Shell Rotella ELC, silicate-free,

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Havoline Extended life (DexCool type) which is silicate-free
http://www.havoline.com/products/na/antifreeze.html
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Any automotive non-silicate, non-nitrite antifreeze
http://faq.f650.com/FAQs/Coolant_Change_FAQ.htm
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prestone extended life
http://www.vfrdiscussion.com/forum/lofiversion/index.php/t11369.html


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Honda coolant, type 2, (type 1 is silicate based), comes in a 4 liter jug, long life coolant.

Refrences:

http://pages.infinit.net/mcrides/engine_tech/engine_coolant.htm