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Yellow plus red #4817880
07/19/18 07:54 AM
07/19/18 07:54 AM
Joined: Apr 2016
Posts: 6
NC
wsteveg Offline OP
wsteveg  Offline OP

Joined: Apr 2016
Posts: 6
NC
I have Buick with the 3800 engine that had dexcool in it. I had a water pump done. When done they filled with O'reilly yellow antifreeze universal that has turned a bit reddish as I guess the heater core retained some dexcool.
My questions
1) can I use ZEREX G-05 to top off
2) should I flush and use it
3) should I go back to dexcool
4) should I add O'reilly yellow antifreeze universal to top off

Re: Yellow plus red [Re: wsteveg] #4817890
07/19/18 08:07 AM
07/19/18 08:07 AM
Joined: Aug 2010
Posts: 6,231
Champlain/Hudson Valley
Kira Offline
Kira  Offline

Joined: Aug 2010
Posts: 6,231
Champlain/Hudson Valley
What year Buick?

It matters because the manifold gaskets which dissolved in the presence of Dex-Cool (thank you GM for that thoughtful design work) were changed to new materials after a certain year.

I don't know how Dex + G-05 + O'Reilly yellow play together.

Re: Yellow plus red [Re: wsteveg] #4817906
07/19/18 08:18 AM
07/19/18 08:18 AM
Joined: Jan 2003
Posts: 3,185
Coastal South Carolina
edwardh1 Offline
edwardh1  Offline

Joined: Jan 2003
Posts: 3,185
Coastal South Carolina
another thing the auto industry screwed up- something simple like antifreeze in the past now 8 varieties


These products are all new every year?? They are a revolution!!! Razor blades, mens shirts, TVs, wiper blades, gutter guards, hearing aids... according to the ads. But also all new last year
Re: Yellow plus red [Re: wsteveg] #4817907
07/19/18 08:18 AM
07/19/18 08:18 AM
Joined: Apr 2016
Posts: 6
NC
wsteveg Offline OP
wsteveg  Offline OP

Joined: Apr 2016
Posts: 6
NC
It's a 2002 Regal.

Re: Yellow plus red [Re: wsteveg] #4817953
07/19/18 09:01 AM
07/19/18 09:01 AM
Joined: Jun 2017
Posts: 733
DFW
JustN89 Offline
JustN89  Offline

Joined: Jun 2017
Posts: 733
DFW
I would flush it and fill it with ZEREX G-05. That's what I have in my '05 Impala and it works well.

Re: Yellow plus red [Re: wsteveg] #4818136
07/19/18 01:18 PM
07/19/18 01:18 PM
Joined: Aug 2017
Posts: 639
Nebraska
BJD78 Offline
BJD78  Offline

Joined: Aug 2017
Posts: 639
Nebraska
Zerex and Prestone prefer to use the term "Global" to describe antifreeze while some brands like O" Reilly or Durex or Napa, pep boys etc calls it "universal" either way they are the same thing and work with all makes models.

Some folks calls it a kaiser blade and some folks calls it a "sling blade".


2010 Forester:122K
2009 Sonata :189K

OCI 5K using TSC conventional Travelers oil.
Re: Yellow plus red [Re: wsteveg] #4822778
07/25/18 11:57 AM
07/25/18 11:57 AM
Joined: Jun 2014
Posts: 2,918
Phoenix, Arizona - USA
SirTanon Offline
SirTanon  Offline

Joined: Jun 2014
Posts: 2,918
Phoenix, Arizona - USA
I could be wrong, but I believe "O'reilly yellow" is basically just another spin on Dex-cool.


2010 Ford Fusion SE - 2.5 liter/6F35 Trans - 271,000mi
2014 Nissan Altima SL - 2.5 liter/CVT - 62,000mi
Re: Yellow plus red [Re: wsteveg] #4922607
11/12/18 10:04 PM
11/12/18 10:04 PM
Joined: Jul 2018
Posts: 150
Florida
DONWATERS Offline
DONWATERS  Offline

Joined: Jul 2018
Posts: 150
Florida
I would drain it, fill with water. Drive a few days, repeat. Once it looks clear go with cheap walmart universal green and water. I don't like the non green conventional coolants, when green is proven.

Re: Yellow plus red [Re: DONWATERS] #4949279
12/11/18 07:41 PM
12/11/18 07:41 PM
Joined: Jan 2004
Posts: 4,987
California
nthach Offline
nthach  Offline

Joined: Jan 2004
Posts: 4,987
California
Originally Posted by DONWATERS
I would drain it, fill with water. Drive a few days, repeat. Once it looks clear go with cheap walmart universal green and water. I don't like the non green conventional coolants, when green is proven.

Walmart green is Dex-Cool, just dyed greenish yellow and no GM approval for warranty service.

The OP shouldn't have a problem with using "universal" antifreeze, as long as it has 2-EHA and sodium neodecoanate in it. NO G-05.

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