another antifreeze question...
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Joined: Oct 2013
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another antifreeze question...
I own a new to me 1998 corvette high mileage unknown maintenance history.
Im in the midst of an overall tune up...
Its coolong system time...I bought new rad hoses, thermostat and waterpump plus belts.
I noticed that the coolant in my system is the grewn stuff.
Do I replace with green stuff? Or switch over to the orange dexcool?
Im in the midst of an overall tune up...
Its coolong system time...I bought new rad hoses, thermostat and waterpump plus belts.
I noticed that the coolant in my system is the grewn stuff.
Do I replace with green stuff? Or switch over to the orange dexcool?
Safety Car
Joined: Nov 2000
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From: Shenandoah Valley Virginia
The cars were designed for and should use the Dexcool. There are extra additives that help with aluminum anti corrosion properties. THOROUGHLY flush the green stuff out of the system, cross contamination of types is a problem. Then fill with Dexcool at the proper percentage.
Race Director
Joined: May 2012
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From: Phoenix area, AZ
The cars were designed for and should use the Dexcool. There are extra additives that help with aluminum anti corrosion properties. THOROUGHLY flush the green stuff out of the system, cross contamination of types is a problem. Then fill with Dexcool at the proper percentage.
Le Mans Master
Joined: Sep 2013
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From: Wisconsin
I hope the new Dexcool is better than the old Dexcool. Might be why previous owner switched to green stuff.
http://gmauthority.com/blog/2011/03/...ol-settlement/
Read more: http://gmauthority.com/blog/2011/03/...#ixzz2s64nMwe2
http://gmauthority.com/blog/2011/03/...ol-settlement/
Back in 1995, GM began to use “Dex-Cool” coolant in its vehicles; in fact, you may very well be driving a vehicle that uses Dex-Cool. After GM had Dex-Cool vehicles out on the road, owners began to file complaints regarding engine and radiator problems that turned out to be linked to the Dex-Cool coolant. Despite this, GM kept using the coolant and complaints kept rolling in; then, in 2003, a series of class-action lawsuits were filed due to the coolant problems in model year 1995 to 2004 GM vehicles.
A settlement was reached in 2008, with GM paying out $24 million in fees to cover expenses for the lawyers and owners. In total, GM received 68,114 claims, most of which were paid until GM declared bankruptcy in 2009.
A settlement was reached in 2008, with GM paying out $24 million in fees to cover expenses for the lawyers and owners. In total, GM received 68,114 claims, most of which were paid until GM declared bankruptcy in 2009.
Read more: http://gmauthority.com/blog/2011/03/...#ixzz2s64nMwe2
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The cars were designed for and should use the Dexcool. There are extra additives that help with aluminum anti corrosion properties. THOROUGHLY flush the green stuff out of the system, cross contamination of types is a problem. Then fill with Dexcool at the proper percentage.
Got to wonder why the previous owner went with the green stuff.
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From: Wisconsin
Safety Car
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From: Fords, NJ
Hmmmm, makes me wonder what I got in mine ? Green or Orange?
I never looked as I never had a reason. I didn't read the article but it makes me think, do any of you guys have any problems ? I sure as hell don't. Is the problem central to one to two model lines or the entire fleet of GM cars and trucks ?
I never looked as I never had a reason. I didn't read the article but it makes me think, do any of you guys have any problems ? I sure as hell don't. Is the problem central to one to two model lines or the entire fleet of GM cars and trucks ?
Melting Slicks
Joined: Dec 2000
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From: Pittsburgh PA
Dex-cool, problems are long gone with it. When first used yes it was a problem, for a couple reasons. Came from the factory in my car 16 years ago, change every 5 years, No problem. Put in the dexcool and don't worry about it.
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I'm happy with the green Prestone. It gets changed every couple years. Owners manual says it's fine. Prestone says it's fine. My car still runs after all the years running it.
Le Mans Master
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From: Wisconsin
Was the formula changed? Seems like all the problems occurred from 97 to 2004.
Melting Slicks
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From: Pittsburgh PA
Don't know what they did. All I know is in the corvette, I have not had a problem in 16 years. I did have major problems in a 96 impala ss, that I did not buy new so can not say what was done. My understanding is when GM started using it they put some kind of additive in that created the problem. I am not sure that it was a problem into 04.
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. The Dexcool issue only involved a few models with certain engines. I had never heard of any sort of factory-fill Dexcool issues with Corvettes or LT1 or LS1 series engines.If the old green coolant doesn't show any signs of the brown mess that forms when the green ethlyene glycol coolant is mixed with Dexcool, I would say go ahead and stay with the green stuff. It will be a pain to get all of the green stuff completely out to make the switch back.
The only thing with the green stuff is that he will have to perform a cooling system service every two years instead of the Dexcool recommendation of 5 years/50K miles. Get a good quality green coolant concentrate and some distilled water. Mix it in a 50-50 ratio and make sure the coolant expansion tank is clean and filled to the proper mark.
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Le Mans Master
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From: Wisconsin
That is what I asked before. Did they change the formula? Since GM paid millions out in class action lawsuits, there must have been some problems with it. What is so funny about that? I had to replace my 2003 GMC radiator after 5 years. I am starting to wonder if the Dexcool caused the corrosion that created the leak. Never knew about the problem with dexcool before.
Last edited by JR-01; Feb 2, 2014 at 01:31 PM.
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That is what I asked before. Did they change the formula? Since GM paid millions out in class action lawsuits, there must have been some problems with it. What is so funny about that? I had to replace my 2003 GMC radiator after 5 years. I am starting to wonder if the Dexcool caused the corrosion that created the leak. Never knew about the problem with dexcool before.