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Old 03-11-2007, 01:48 AM   #1
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Default Interesting read about DexCool, (with pics)

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Old 03-11-2007, 03:57 AM   #2
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HMMMMM..............

That looks rather nasty
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Old 03-11-2007, 05:17 AM   #3
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OMFG
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Old 03-11-2007, 05:42 AM   #4
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Quote:
Originally Posted by ten_gigahertz
OMFG
Squared!

That does it. The coolant in the new Pontiac Torrent is getting dumped, flushed with water, and reloaded with conventional 50/50 mix. I don't care if it is still under warrantee or not.

I've already done the other cars over the years. The '94 Camaro, first one I owned with DexCool, suffered a complete coolant dump about 5 years ago when a freeze plug rusted through from the inside-out. I wrote it off to a bad freeze plug. Having seen the insides of my overhauled 3800 Series II project, I know different.

The '87 Camaro and '90 Bonneville never had DexCool in them, and their original radiator cores look brand new.
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Old 03-11-2007, 12:56 PM   #5
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Any new news on the rumor that GM recently (and very quietly) reformulated the DEX?
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Old 03-11-2007, 01:16 PM   #6
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I used to use the Dex in my 95... Years back I switched to Prestone Longlife.. And when I finally puled the lower gaskets after the prestone the gaskets looked like brand new...

I like My Prestone

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Old 03-11-2007, 01:33 PM   #7
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I'm glad GM didn't use that stuff in 1990 , those pictures look sickening :(
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Old 03-11-2007, 01:36 PM   #8
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I just had my coolant flushed and switched to prestone too. If the engine had Dex in it until about 2 weeks ago, will the green stuff prolong the life of my gaskets/ etc. or am I still screwed and should I get it done as soon as possible
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Old 03-11-2007, 01:40 PM   #9
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Rach.....the damage is already done. You still need to replace your LIM gaskets. And do the upper while you're at it.

Every car here that has had DEX for over a year or two should change it soon. My opinion, but well-founded by our research and experience.
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Old 03-11-2007, 04:19 PM   #10
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Okay. Mine had dex for nine non serviced years.
It was recently flushed in June. I am running the orange stuff still (Halvoline)....should I flush it over to the Green stuff soon?
Cause that is easy enough to do...
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