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Originally Posted by dmbrisket 51
ok, as i said in post number 9 i beleve, the green stuff has a different base from the Dex cool, the green likes to eat away at that plastic rubber intake gasket, and you will eat through the seal with green... and to get brown sludge in a Dex system, your 97 was not taken well care of, Dex cool sludges up when it is mixed with oxygen and exposed to heat (will do it in just oxy. but the heat speeds the process up) keep a good rad. cap (factory ones are shitty) on the dex cool and keep it toped off and you will have no problems with it
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I too replaced dex-cool with the green stuff in my 96 blazer, and now have a leaking intake manifold. Should I go back to dex-cool (which I hate) or specify a green anti-freeze friendly gasket? It has a 130K miles on it, should I replace the CPI, while I'm at it?