TOOK THE DEX COOL PLUNGE

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Your engine is the series 3 3800. They where introduced in 2004 in the grand prix.
 
Originally Posted By: onion
I even heard once that Dexcool is poisonous if you drink it. And yet it looks JUST LIKE Koolaid.


Ethylene Glycol is extremely poisonous if ingested and all non-safe coolants contain it - including Dexcool. But if you want to try to find out, just drink a glass of it. I wouldn't recommend it though, you won't like the way you die. It'll be slow and very painful.
 
Originally Posted By: Moose016
Originally Posted By: George7941
Dexcool gets blamed for everything, now for excessive evaporation!


Dexcool is the cause of global warming. It also shot Kennedy.


Dex-Cool wasn't invented when JFK was shot. It must have been Penzzoil sludge that shot Kennedy. They had a lot of that stuff in the 60's
 
Originally Posted By: lucerne06


so what do you guys think? I had them drain,flush and refill the system with new dexcool, just to make sure, it cost me 120.00 total.


Did they do a compression check? Pull your spark plugs and see if one of them is cleaner than the others. you might have a small leak in the heads that only happens when the engine is hot
 
I called another dealer 100 miles away from me in PA. Spoke to the service mgr.Told him I was 100 miles away and looking for an honest answer since it would not affect him/them at all. I told him what was happening, and what the dealer by me said/printed out on my invoice..He said to me that they do the exact same thing,always fill whenever the cars come in for service and they consider 12-16 oz of dexcool loss(due to evaporation) per year to be normal.

I am going to call one more dealer and just explain the symptoms and see what they say without them hearing what another dealer told me.
 
I have a 2007 Lucerne with a V6. It does seem to loose coolant about the rate yours does. I think some of it sloshes out the top of the coolant recovery tank. I am not overly concerned. For now I am chalking it up to evaporation?? Am going to change to G05 on the next nice day.
 
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Good to know someone else is seeing this..so it's just not me..Oh as a side note...I had to take the lucerne back into the authorized dealer again today and drop it off for re-servicing. I decided to check the Coolant with my hydrometer..don't know why I wanted to.. anyway it seems that only 40% dexcool was used to 60% water. So it was only good for -23. not the recommended
-34 for a 50/50 mix. Now this jerks my chain..what would you guys do??
 
Originally Posted By: chiefsfan
I have a 2007 Lucerne with a V6. It does seem to loose coolant about the rate yours does. I think some of it sloshes out the top of the coolant recovery tank. I am not overly concerned. For now I am chalking it up to evaporation?? Am going to change to G05 on the next nice day.


Right, don't worry about losing coolant on a GM V-6 with Dexcool. What could it possibly go wrong??? Don't believe those silly rumors about Dex-Sludge. Just add some more coolant, no problems. GM never had to replace engines with broken camshafts, or millions of IMGs, it's just sour-grapes from disgruntled owners. By all means, take the dealer's word that there is no problems. I'm sure that is exactly what all the other owners did with their GM V-6s with Dexcool too.

Again -- Don't worry -- Dexcool doesn't cause problems, all these other guys think its good.
 
TIme to start doing some UOA and look for coolant in the UOA. I thought they changed the gaskets and intake manifold ont he 3.8 to fix that issue. It used to be that the Dupont66 Glass Nylon intake would erode att he EGR port and then coolant would leak into the engine. So you would replace the lower intake and upper intake with a different design to solve the problem. THe 3.8 Buick did not suffer from gasket issues like the 60°V6's in GM's line up. The first year my Camry had vanishing coolant issues. It would every so often be a few onces low. I would top it up with distilled water and a few months latter it would be down a few onces again. No signs of leaks any place and pressure test was good! I put a few onces of LC in it because Terry tried on his Daughter's VW BUG(new model). It stoped imediately. Eventhough I change my coolant ever year andhave not put any more LC in it has never been low since!
 
Originally Posted By: ZGRider
Originally Posted By: chiefsfan
I have a 2007 Lucerne with a V6. It does seem to loose coolant about the rate yours does. I think some of it sloshes out the top of the coolant recovery tank. I am not overly concerned. For now I am chalking it up to evaporation?? Am going to change to G05 on the next nice day.


Right, don't worry about losing coolant on a GM V-6 with Dexcool. What could it possibly go wrong??? Don't believe those silly rumors about Dex-Sludge. Just add some more coolant, no problems. GM never had to replace engines with broken camshafts, or millions of IMGs, it's just sour-grapes from disgruntled owners. By all means, take the dealer's word that there is no problems. I'm sure that is exactly what all the other owners did with their GM V-6s with Dexcool too.

Again -- Don't worry -- Dexcool doesn't cause problems, all these other guys think its good.



You do realize this is a series 3 engine not a series 2. The series 3 have a redesigned intake manifold that don't suffer from the problems the series 2 intake did.
 
Originally Posted By: wapacz

You do realize this is a series 3 engine not a series 2. The series 3 have a redesigned intake manifold that don't suffer from the problems the series 2 intake did.


You don't want to confuse ZGRider with facts. He is just on his usual anti-Dexcool rant.
 
Originally Posted By: George7941
Lube Control makes an oil additive and a fuel additive. What does this have to do with the cooling system?


Supposedly Terry Dyson used to use it in the cooling system of his VW Bug.
 
Originally Posted By: wapacz
Originally Posted By: ZGRider
Originally Posted By: chiefsfan
I have a 2007 Lucerne with a V6. It does seem to loose coolant about the rate yours does. I think some of it sloshes out the top of the coolant recovery tank. I am not overly concerned. For now I am chalking it up to evaporation?? Am going to change to G05 on the next nice day.


Right, don't worry about losing coolant on a GM V-6 with Dexcool. What could it possibly go wrong??? Don't believe those silly rumors about Dex-Sludge. Just add some more coolant, no problems. GM never had to replace engines with broken camshafts, or millions of IMGs, it's just sour-grapes from disgruntled owners. By all means, take the dealer's word that there is no problems. I'm sure that is exactly what all the other owners did with their GM V-6s with Dexcool too.

Again -- Don't worry -- Dexcool doesn't cause problems, all these other guys think its good.



You do realize this is a series 3 engine not a series 2. The series 3 have a redesigned intake manifold that don't suffer from the problems the series 2 intake did.


So, are you saying that Dexcool didn't cause any HG problems either? Where's the coolant going then? Dexcool users can think of more excuses as to what Dexcool doesn't cause, or what cars or parts aren't affected by Dexcool. When will they just admit that it did and still does cause problems? I have a term for this: cognitive dissonance
 
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