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Pink Coolant in a 2017 Suburban

Bigfutz

By Bigfutz
in Troubleshooting & Recalls

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Bob2C
Bob2C

So this is what I have found as far as color. The coolant is not the color of the cap. This appears to be what is in my truck.    

Posted Images

JimCost2014 Senior Enthusiast

JimCost2014

Posted
Posted
On 2/14/2020 at 3:11 AM, Bob2C said:

My 2018 Tahoe is definitely not orange. I bought it new

d9a48fa4928a47d3dfcaecb3b3780d11.jpg


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Is your overflow tank always so low?

JimCost2014 Senior Enthusiast

JimCost2014

Posted
Posted
8 hours ago, Bigfutz said:

Well, the cap color is more accurate than anticipated. The Prestone DexCool (left) is definitely orange, and what’s in the reservoir(right) is pink.
76b5683c6d78e6b201b43f2f75cf1193.jpg
42145e513017e09174ccdb5be1943606.jpg

Thinking someone added water, which is a no-no, I would have it changed out just to be safe.

 

This is what I keep in the shop, I know it is the right product:

 

See the source image

Bob2C Enthusiast

Bob2C

Posted
Posted
Is your overflow tank always so low?



Bought it new like that. Level never changed.


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SDfromSD Enthusiast

SDfromSD

Posted
Posted

I put a block heater in my 2017 Burb couple weeks ago. Dumped in what had came out and noticed it was pink instead of “Dexcool orange.”  Also owned from new so I know it hasn’t been changed. My pink looks exactly like the pictures above.

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Bob2C Enthusiast

Bob2C

Posted
Posted

Is it possible color change from usage?


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SDfromSD Enthusiast

SDfromSD

Posted
Posted
17 minutes ago, Bob2C said:

Is it possible color change from usage?


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If it does it changes quick. I have 8k miles now and have never ran it hot or had a problem. I lost a little putting the block heater in and didn’t top it off with Dexcool cause it didn’t match. If I don’t find an answer soon I’ll probably just dump some in. Would be nice to know what it is though.

Bob2C Enthusiast

Bob2C

Posted
Posted

So I found this on the Cruze forums. Interesting. The second attachment should be read first

 

83e1e3f79538ab0ccd6c8fe02b6fa873.jpg45c86b19ec1bdc736985e340eca42f42.jpg

 

 

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  • 5 months later...
Bob2C Enthusiast

Bob2C

Posted
Posted

I added some Prestone Dexcool to the tank and brought it up to the cold full line. It mixed well and had no issues.

newdude Senior Enthusiast

newdude

Posted
Posted (edited)
On 2/23/2020 at 9:15 AM, BlaineBug said:

Is Dex-Cool the same awful sludgy mess that it used to be?

 

Dexcool is fine.  It was the coolant's reaction to $hitty gaskets GM was using that caused all those problems early on and from people not changing it every 5yr/150k.   

Edited by newdude
newdude Senior Enthusiast

newdude

Posted
Posted

Yes, its Dexcool that is in there.  Yes it does look on the pink side.  Yes its normal and no GM didn't stop using Dexcool and switch to something else.  All the new vehicles have that pink-ish color to it.  

BlaineBug Enthusiast

BlaineBug

Posted
Posted
3 hours ago, newdude said:

 

Dexcool is fine.  It was the coolant's reaction to $hitty gaskets GM was using that caused all those problems early on and from people not changing it every 5yr/150k.   

I wasn't aware.  Was it an incompatible metal gasket or rubber that was causing the issue?

carkhz316 Enthusiast

carkhz316

Posted
Posted

Shucks, I missed this thread until now. I know it's been pretty much answered in the mentions above, but though I'd comment. So, I discovered my 2014 SS sedan had what appeared to be pink coolant as well. I couldn't find anything online or in the owners manual mentioning this besides "USE DEXCOOL". Earlier this year at a local tool/ parts store expo, I spoke with a PEAK antifreeze rep and he answered the question as they are a supplier for some some/ all of GM's production lines. He stated that (in addition to above mentioning the dye blends), that some of their coolant reacts differently with the metals and rubber seals in the vehicles of some vehicles, altering the color slightly. He said that they are are aware of the the GM Dexcool blend being of a pink hue, and said it's the same composition as the regular orange that you are used to. So, suffice to say, Pink in a GM vehicle = Orange Dexcool.

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