Dex-cool - Page 3 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


General GM Chat When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made. Chat about all things GM (and related cars). Off-topic stuff should be in the Lounge, and all Model specific mechanical problems should be posted in the proper forum.

Reply
 
 
 
Thread Tools Search this Thread
Old 06-06-2006, 02:14 PM   #21
Junior Member
 
Join Date: Aug 2005
Location: North of Buffalo, NY *** NEBF '05, '06, '07 *** ***ONBF & NYBF 06; 07*** ***WCBF 06***
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
singscountry1967 is on a distinguished road
Default

When I went to buy some coolant to "top off" my overflow... I was sold something that is supposed to be compatible with both the Green and the Dexcool. Does this make sense to anyhow? If you can't mix the green with the orange, then how can they make a product that can be added to either?
singscountry1967 is offline   Reply With Quote
Old 06-06-2006, 02:17 PM   #22
Senior Member
True Car Nut
 
Join Date: Oct 2005
Location: Central Florida
Posts: 7,030
Thanks: 0
Thanked 0 Times in 0 Posts
lash is on a distinguished road
Default

It'* true. Don has been touting it'* use for quite a while for those that are concerned about Dexcool use.
lash is offline   Reply With Quote
Old 06-06-2006, 02:21 PM   #23
Junior Member
 
Join Date: Mar 2003
Location: Purgatory
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
vital49 is on a distinguished road
Default

As a matter of fact, you really have to search for the orange stuff. Everything now is the mixable coolant. I just went throght this hassle this past weekend when I replaced my LIM gaskets. I ended up using the mixable Prestone coolant.
vital49 is offline   Reply With Quote
Old 06-06-2006, 03:53 PM   #24
Guest
Posts like a Northstar
 
Join Date: Nov 2004
Posts: 584
Thanks: 0
Thanked 0 Times in 0 Posts
ssei1995 is on a distinguished road
Default

The only problem I see with a court settlement is that GM will try to weasel themselves out easy. Instead of paying money to the victims, they will probably pay a fine to the government and then give out a voucher for a discount on your next GM purchase.
ssei1995 is offline   Reply With Quote
Old 06-06-2006, 03:54 PM   #25
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Honestly Joe...i wouldn't be paying on the coolant. when it'* probably a plastic gasket issue.
BillBoost37 is offline   Reply With Quote
Old 06-06-2006, 04:02 PM   #26
Guest
Posts like a Northstar
 
Join Date: Nov 2004
Posts: 584
Thanks: 0
Thanked 0 Times in 0 Posts
ssei1995 is on a distinguished road
Default

Bill, I know what you mean...I have a friend that used to work at the GM Proving Grounds..he has a lot of stories of testing he had to do for product liability cases.
ssei1995 is offline   Reply With Quote
Old 06-06-2006, 06:37 PM   #27
Senior Member
True Car Nut
 
Join Date: May 2003
Location: Lethbridge, Alberta, _______Canada._______ West Coast Bonneville Fest ___05,06,07 Survivor___
Posts: 8,134
Thanks: 0
Thanked 0 Times in 0 Posts
SSEimatt93 is on a distinguished road
Default

Old owner of my 97 called me today, took it in, had a new rad cap installed, it was leaking, and had the entire cooling system flushed for 250 dollars.
no cost to me at all
what a nice guy, im pretty happy anbout that.
one less thing to worry about
SSEimatt93 is offline   Reply With Quote
Old 06-06-2006, 08:40 PM   #28
Senior Member
Expert Gearhead
 
Join Date: Dec 2002
Location: Mississauga, Ontario
Posts: 20,892
Thanks: 0
Thanked 1 Time in 1 Post
Jim W is on a distinguished road
Default

I've heard/read etc that Dex-Cool was introduced as a long life coolant for vehicles that featured 50-60K mile first tuneups. Apprently its better suited for all aluminum engines as opposed to engines that use a combination of aluminum and cast iron materials.

I've never heard of all aluminum engines have DexCool problems, only cast iron/aluminum. Its ok to switch to antifreeze/green coolant after a complete flush, however it has to be maintained for acidity and degredation over miles of usage. DexCool eliminated that babysitting of the cooling system.
Jim W is offline   Reply With Quote
Old 06-06-2006, 11:23 PM   #29
PopaDopaDo
True Car Nut
 
popatim's Avatar
 
Join Date: Jan 2005
Location: NY
Posts: 4,957
Thanks: 0
Thanked 0 Times in 0 Posts
popatim is on a distinguished road
Default

From the IMCOOL website:
1. Keep the cooling system filled. In fact, fill the reservoir bottle to “Hot” level when the system is cold. Problems arise when a system’* coolant level is not maintained. (Fleet vehicles receiving regular maintenance, and with reservoirs kept slightly above normal, do not show signs of contamination. This even applies to the specific “problem” vehicles.)

2. The coolant problems found in this survey were caused by system contamination, and not due to the breakdown of DEX-COOL.

3. Check and keep the pressure cap clean and functioning. A contaminated and/or malfunctioning cap causes low coolant levels, which in turn causes overheating and a greater loss of coolant: the notorious vicious cycle. No matter what the vehicle, if the cooling system acts suspiciously, test the pressure cap.

4. On the ST vehicle models mentioned in the GM DEX-COOL video, you “must” replace all suspect radiator caps, especially those with a Drop-Center design, with a Stant Model 10230 or 11230 (Spring-Center type). (Just do it.)

5. Make sure that the coolant is at a 50-50 mix. Often, the flush water was not being removed from the engine block. Consequently, when a 50-50 mix is added to the system the resultant mixture could approach 30-70. Like any fluid that has been diluted beyond its recommended levels, the lowered level of inhibitors will not be able to protect the coolant system effectively. Low levels of inhibitors can cause pitting on aluminum surfaces and general corrosion of cooling system metals.

6. A safe method of achieving a true 50-50 mix is to first determine the actual capacity of the system (use the owner’* manual). Then add 50% of “that” amount of undiluted DEX-COOL (or any coolant), and top it off with water.

7. Mixing a “green” coolant with DEX-COOL reduces the batch’* change interval to 2 years or 30,000 miles, but will otherwise cause no damage to the engine. In order to change back to DEX-COOL however, the cooling system must first be thoroughly drained and flushed.

8. Bacteria cannot live in a hot, Ethylene Glycol environment and is therefore not a threat to DEX-COOL.

9. While there have been intake gasket failures on CK Series, V8 powered vehicles for various reasons, DEX-COOL has never been found as a cause.

10. Use a refractometer to check the condition of DEX-COOL. Its inhibitor package is strong enough that if the batch still provides proper freeze protection, it is probably still providing proper corrosion protection as well.

11. DEX-COOL can handle the minerals in hard water better than silicated conventional chemistry coolants. Drinkable water is suitable for top off.
popatim is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
GM/Dex-Cool Class Action Update lash General GM Chat 90 09-16-2008 07:30 PM
dex-cool removal? atauri_92 1992-1999 7 04-23-2006 01:35 AM
Investigation of Dex-Cool; potential class-action lawsuit big_news_1 General GM Chat 7 03-03-2006 08:37 AM
GM Dex-cool 99_Bonney_SLE 1992-1999 12 02-02-2006 03:37 PM
Dex-Cool...Good, Bad, or Ugly Mario Rosso 1992-1999 12 02-16-2003 04:18 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 08:17 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.