Havoline dexcool and Ford 6.7l?
Lead Driver
Joined: Nov 2005
Posts: 8,440
Likes: 4,945
To others who may not know better, like my dad, don't go to the parts store and ask them for coolant for your 2011+ ferd, most of them don't know the right kind to use.
My dad did this without my knowing and they gave him the gold G-05 coolant and he put it in his truck and now is going to have it flushed out and o'reilly auto parts will be footing the bill.
My dad did this without my knowing and they gave him the gold G-05 coolant and he put it in his truck and now is going to have it flushed out and o'reilly auto parts will be footing the bill.
Super Moderator
Joined: Aug 2008
Posts: 37,370
Likes: 1,858
From: Frederick, MD
I have a 2008 Buick with the dex cool.
Since I am the only who touches it the coolant system has been fine.
I just recently replaced the t-stat and coolant temp sensor. So in opening it up all is very clean. No gunk in the coolant overflow either.
Since I am the only who touches it the coolant system has been fine.
I just recently replaced the t-stat and coolant temp sensor. So in opening it up all is very clean. No gunk in the coolant overflow either.
Lead Driver
Joined: Nov 2005
Posts: 8,440
Likes: 4,945
There are really only issues with dexcool when someone isn't paying attention and doesn't use the right coolant for top off or doesn't change it when required.
Super Moderator
Joined: Aug 2008
Posts: 37,370
Likes: 1,858
From: Frederick, MD
Guilty as charged...but then again this car has never had a front end alignment either. Got it (the car)n 2007.
Mountain Pass
Joined: Jul 2014
Posts: 139
Likes: 48
From: Eastern Panhandle of WV
I just crossed 30k miles. When I tested the main coolant the strip did not fail, but it was not nearly as orange as the secondary. It was quite a bit more red. Has anyone had this test result? Was it followed by a failed test at the next interval?
I will most likely do a drain and fill at 45K miles. Should be cheaper than testing and revitalizer.
Anything special with this truck? Any high point vents, or remove a return hose and just slightly pressurize the bottle to move coolant into the block?
I will most likely do a drain and fill at 45K miles. Should be cheaper than testing and revitalizer.
Anything special with this truck? Any high point vents, or remove a return hose and just slightly pressurize the bottle to move coolant into the block?
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Lead Driver
Joined: Jan 2006
Posts: 6,267
Likes: 5
Mixing it with other coolants was a guaranteed disaster, but it also failed just fine on it's own as well.
Lead Driver
Joined: Jan 2006
Posts: 6,267
Likes: 5
I've yet to see a GM vehicle with dex cool newer than that have issues yet.
A lot of the GM vehicles with dexx cool problems had repair bills larger than something drastic like 6.0 diesel head problems, but I guess that doesn't count.
A co worker had the coolant go south in his duramax, flush and new heater core 3200$ with labor.
I have seen so many GM dex cool damaged vehicles now that I can't believe it's not talked about more on the internet, it is above and beyond any other GM issues I've seen.
They can blame it on gaskets or mixing coolants or whatever, but there are plenty of vehicles with 100% dex cool that have ended up trashed from the coolant separating or eating stuff away or whatever you want to blame it on.
GM junk IMHO.
Lead Driver
Joined: Feb 2005
Posts: 7,905
Likes: 2,625
From: The Great State of Texas
You just convinced me to go to my Ferd dealership and purchase Motorcraft coolant for my first coolant change.
Thanks again...
Thread Starter
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Logistics Pro
Joined: Jul 2002
Posts: 4,821
Likes: 19
From: South Dakota
From what I've read the best bit of advice is to use an airlift style of coolant vacuum tool to fill the truck in order to avoid trapped air in the system. I found one on amazon for about $65. IMO well worth the money for a diy guy like myself.
Lead Driver
Joined: Nov 2005
Posts: 8,440
Likes: 4,945
Back in the day like 2004 ish.
I've yet to see a GM vehicle with dex cool newer than that have issues yet.
A lot of the GM vehicles with dexx cool problems had repair bills larger than something drastic like 6.0 diesel head problems, but I guess that doesn't count.
A co worker had the coolant go south in his duramax, flush and new heater core 3200$ with labor.
I have seen so many GM dex cool damaged vehicles now that I can't believe it's not talked about more on the internet, it is above and beyond any other GM issues I've seen.
They can blame it on gaskets or mixing coolants or whatever, but there are plenty of vehicles with 100% dex cool that have ended up trashed from the coolant separating or eating stuff away or whatever you want to blame it on.
GM junk IMHO.
I've yet to see a GM vehicle with dex cool newer than that have issues yet.
A lot of the GM vehicles with dexx cool problems had repair bills larger than something drastic like 6.0 diesel head problems, but I guess that doesn't count.
A co worker had the coolant go south in his duramax, flush and new heater core 3200$ with labor.
I have seen so many GM dex cool damaged vehicles now that I can't believe it's not talked about more on the internet, it is above and beyond any other GM issues I've seen.
They can blame it on gaskets or mixing coolants or whatever, but there are plenty of vehicles with 100% dex cool that have ended up trashed from the coolant separating or eating stuff away or whatever you want to blame it on.
GM junk IMHO.
Lead Driver
Joined: Jan 2006
Posts: 6,267
Likes: 5
So then the GM gaskets were the problem then, not the coolant?
I really never figured out or learned much about the problem, I just know of a ton of GM vehicles off hand that I've seen with cooling systems full of gritty gummed up junk from dex cool.
For all I know, maybe dex cool was re formulated years ago and is 100% reliable but I'll never use it for anything just because.
Senior User
Joined: Apr 2010
Posts: 317
Likes: 1
From: Bismarck,ND
All the more reason to find a less expensive fluid and change it out every two years in your driveway whenever the time suits you!
I think a post in the tech folder is urgently needed.
1. Approved coolant options
2. Flush/fill procedures and required amount of coolant needed.
I think a post in the tech folder is urgently needed.
1. Approved coolant options
2. Flush/fill procedures and required amount of coolant needed.