dex-cool

[tmon103]

I'm confused,I thought Dex-cool was the latest and greatest coolant.Why is everyone flushing it out and going green?Should I do the same?
Tmon

[JCS44]

Originally Posted by tmon103

I'm confused,I thought Dex-cool was the latest and greatest coolant.Why is everyone flushing it out and going green?Should I do the same?
Tmon

This is a new one me. Everything I've read indicates that DEXCOOL is the latest and greatest, and more importantly, it is totally incompatible with the green stuff. You can't switch because there's just no way to totally flush the green stuff from every nook and cranny in the block. Stick with what came in it.

JCS44

[Mr. Smith]

I use dexcool with no problems, with proper maintenance. Thats the key.

Originally Posted by tmon103

I'm confused,I thought Dex-cool was the latest and greatest coolant.Why is everyone flushing it out and going green?Should I do the same?
Tmon

[corning_d3]

When GM says change it after XXX,000 miles, your best bet is to listen. After dex-cool get used past recommend change interval, it has been known to cause waterpumps to fail, radiators/heater cores to stop up, and all kinds of nasty stuff. Regardless to what you have heard, you can use green antifreeze in a dex-cool system, but it must be changed every 30,000 miles, according to GM.

[icedawgs88]

You can replace the dex cool with green coolant. The dex cool will actually gum up your engine. I work for quaker state and alot of times see cars come in where there is excess build up on the radiator cap meaning this is evident in the whole radiator. They make a machine that pulls out all of the old coolant and puts new back in with no problem. Alot of people say stick with dex cool however i say wait until warranty is over then change it just because if anything goes wrong with the engine they will nto cover if flushed with a different coolant. Also dex cool does not last 150,000 miles except in rare cases it will. Most dex cool systems need flushing at 100,000 miles but the green coolant is cheaper and will work just as good and can find it everywhere. If your not sure if you want to do this just flush it out twice best bet is to go to an oil change shop that does oil changes and have them do it this way any concerns you have, or any problems that company is legally responsible for any damages done to your vehicle after servicing. No worries with switching from dex to green, i do this every day for a living and flush alot of dex cool systems over to green with the coolant machine.

[MT-2500]

If dex cool came in it use it. It is made for your engine and your engine is made for it.
Do not believe all of the dex cool is bad stuff crap.
Old timmers said the alternators were a bad deal when they changed over from generators to.
Would you go back to a generator?
Look how long and how many cars GM has been using it in.
Just flush it out/change it ever so often.
And it is only a couple dollars higher than the old geen stuff.
Beside that green stuff will curl up your dogs toe nails if he takes a drink of it and I have heard of a few wives giving there husbands a swig of it to.
MT :

[horse482]

I was talking to the head mechanic at my local Chevy dealer and he told me to flush the dex-cool out of my system on my wifes '02 and put the green stuff in, all the problems that gm vechiles have with intakes leaking stems from dex-cool. If the coolant gets low on a vechile running dex-cool it will cause the antifreeze to turn curosive.

[Mr. Smith]

Originally Posted by horse482

I was talking to the head mechanic at my local Chevy dealer and he told me to flush the dex-cool out of my system on my wifes '02 and put the green stuff in, all the problems that gm vechiles have with intakes leaking stems from dex-cool. If the coolant gets low on a vechile running dex-cool it will cause the antifreeze to turn curosive.

The dex doesn't have crap to do with leaking gaskets. The gaskets fail due to the material they are made from and the aluminum/iron composition of the engines. Dex isn't a forever anti-freeze like GM claims 150K but I can run 3-4 years no problem and not have to change it every other year like that green crap.

You state the obvious that if you fail to maintain your vehicle bad things happen internally. Well stop the presses, there's a newsflash. I think your "mechanic" is a moron for saying that. First he may be a parts changer...his job. But when it comes to simple maintenance he wants to lull you into the obvious, work for him to do. Typical folks don't maintain their vehicles like they should. With that said neglected coolant systems are big bucks to fix. It doesn't take a genus to see this.

Whatever you decide to use is a personal choice but I have over 300K over 3 vehicles with DEX. No coolant related issues here because I maintain them properly.

[MT-2500]

Right on there Mr Smith
You got that figured right.
It is not the coolant it is the mantiance.
Nothing last forever.
MT

[icedawgs88]

As good as those last comments sound i am still gonna say switch to the green coolant. The dex cool will gum up your engine regardless of maintnence. Its just a garbage product. In alot of cases people will get that build up right on the radiator cap wich will show you how good this coolant is. I knowi dont want that in my engine. I guess its all on personal choice. If you have faith in dex cool use it. If you know how the crap really works than switch it. Its as simple as that.

[corning_d3]

I run green also, and just change it every 30,000 per GM instruction..

[Mr. Smith]

Originally Posted by icedawgs88

As good as those last comments sound i am still gonna say switch to the green coolant. The dex cool will gum up your engine regardless of maintnence. Its just a garbage product. In alot of cases people will get that build up right on the radiator cap wich will show you how good this coolant is. I knowi dont want that in my engine. I guess its all on personal choice. If you have faith in dex cool use it. If you know how the crap really works than switch it. Its as simple as that.

Green with sludge up as well with neglect. You do what you want as you said it is a personal choice. But you make claims and fail to back them up and thats fine too.

I call it ignorance to make such statements.

[MT-2500]

Again right on there Mr. smith
You hit the nail on the head.
It is the service and care that counts.
To many people do not know how to service and care for there cooling system.
MT

[corning_d3]

I'd use Dex-Cool, but I'm just too damn cheap right now..!

[MT-2500]

Corning_d3
You may be in luck the price of green has almost caught up with Dex-cool.
MT