Red or green antifreeze?
#4
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Join Date: Aug 2011
Location: Slidell, Louisiana
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Yeah they say you are supposed to use the dex-cool coolant because it will keep the aluminum heads from corroding; however, I believe this to be crock of bull. Like country said don't mix them but put either one in there, you will be okay.
#5
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As I understand it the advantages of Dexcool are: its ability to do better with aluminum, its less harsh on seals and gaskets, it last much longer then standard antifreeze... dexcool will go the full 100k miles and 5 years of your warranty without servicing...
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#8
CF Senior Member
I bought my 2004 Silverado used in 2010. It had the DexCool (orange) coolant in it, so when I had it flushed, I had them use the same stuff. Also, it is what is recommended by GM.
In my other vehicle, a Nissan Sentra, I use the green Prestone stuff.
#9
IMO, As long as truck is out of warranty I would consider "green" antifreeze. I had issues with intake gasket failure on a 99 5.7 li Vin R that I really believe was a result of using the orange antifreeze. I suspect the orange stuff degraded and attacked the gasket material causing it to fail. Failed gasket was like a "wet noodle" at the point where it failed. Could have been the gasket but I felt better using the green stuff because I never had trouble with it before. Had to replace a leaky water pump early too.
Changed to green antifreeze about a year ago and have not had any issues with it.
Whether using either green or orange it should be serviced according to recommended schedule or a little earlier.
Changed to green antifreeze about a year ago and have not had any issues with it.
Whether using either green or orange it should be serviced according to recommended schedule or a little earlier.
#10
What he said. Biggest thing is to change it out when it's due. I use a little added insurance and every other year add a can of "anti-rust' or in the old days "Water pump lube"
You don't want to mix dex-cool with anything. I wouldn't even take a chance with the new formulas that say mixes with anything.
Dex-cool will form a gel if you mix it with the regular green stuff. Worked on a couple gelled ones and it's a pain to get them open again. Same if you make the mistake of adding Dex to regular. Either way it's a bad scene.
IMHO Out of warranty, I'd go with a standard non Dex long life coolant.
You don't want to mix dex-cool with anything. I wouldn't even take a chance with the new formulas that say mixes with anything.
Dex-cool will form a gel if you mix it with the regular green stuff. Worked on a couple gelled ones and it's a pain to get them open again. Same if you make the mistake of adding Dex to regular. Either way it's a bad scene.
IMHO Out of warranty, I'd go with a standard non Dex long life coolant.
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mountainlady
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September 18th, 2011 8:00 PM