What is the Correct Coolant for the Commander? - Jeep Commander Forums: Jeep Commander Forum
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post #1 of 73 (permalink) Old 06-20-2009, 11:43 PM Thread Starter
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What is the Correct Coolant for the Commander?

I added some Prestone Coolant to my 06 Jeep Commander Hemi and I want to make sure its ok?

Thanks,

Here is what I used:




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post #2 of 73 (permalink) Old 06-21-2009, 12:03 AM
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I know the XK uses the red anti-freeze but I am not sure if there are different formulations. I have always thought that there was either Red or Green and you shouldn't mix them unless the one you buy says "mixes with all" so I think you have the right stuff but you may want to check out the Prestone website to see if there is one that is specifically for Chrysler vehicles and see if they have matching part or item numbers.

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post #3 of 73 (permalink) Old 06-21-2009, 08:26 AM
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Daniel,
You used the right stuff......no worries.

Rob


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post #4 of 73 (permalink) Old 06-21-2009, 08:40 AM
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That is not the correct antifreeze and needs to be drained out of your XK immediately. The Commander uses a special HOAT antifreeze (Hybrid Organic Acid Technology) and should not be combined with Dexcool or other antifreezes, it will cause leaks and plugging of the radiator and heater core. Prestone claims that it's 50/50 extended life is compatible with all makes and models but it's not. You either need to get it directly from the dealer or sometimes you can find it at a local auto parts store.

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post #5 of 73 (permalink) Old 06-21-2009, 08:41 AM
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Quote:
Originally Posted by robby View Post
Daniel,
You used the right stuff......no worries.

Rob
No he definately didnt use the correct antifreeze.

2007 4.7 Liter XK | Front OME MD Springs w/Superlift Preload Spacer | Rear 4" Superlift Springs | Bilstein 5125 Rear Shocks | JBA UCA's | Rusty's Rear Adjustable Track Bar | Black Rock 997 Wheels | Fred Goeske 1/4 Inch Wheel Spacers | 305/70R17 Goodyear Wrangler MT/R w/Kevlar | Airflow Snorkel | Flowmaster 40 Series Muffler | Superchips Flashpaq | Mopar Skids | 4xGuard Belly Guard | American Rebel Rear Diff Cover | Rear Powertrax No-Slip | Front E-Locker | Rear Heat/AC Delete
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post #6 of 73 (permalink) Old 06-21-2009, 08:47 AM
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I was of the belief the Prestone claim is correct.....
Where are you finding info to contradict 07?
I doubt if a touch up in the overflow would be so dire, but if your info is correct then the OP should at least remove and drain the overflow.
A full coolant flush could be a bit extreme. (my opinion only)
You've gotten my attention as I may be giving out bad info.

Thanks,
Rob


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post #7 of 73 (permalink) Old 06-21-2009, 09:05 AM
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Quote:
Originally Posted by robby View Post
I was of the belief the Prestone claim is correct.....
Where are you finding info to contradict 07?
I doubt if a touch up in the overflow would be so dire, but if your info is correct then the OP should at least remove and drain the overflow.
A full coolant flush could be a bit extreme. (my opinion only)
You've gotten my attention as I may be giving out bad info.

Thanks,
Rob
A few months after our first trip to Rausch Creek I decided to take out the fan shroud/electric fan so that I could clean the radiator really well. My engine had been running a little hotter then normal due to all the dirt being clogged in the radiator from the huge water holes we decided to drive through. Well in order for me to get the fan shroud/electric fan out I had to disconnect the upper radiator hose and lost quite a bit of fluid. Well enough to need to add more I guess you can say. I knew the fluid wasnt the original green fluid used in other vehicles I previously owned so I check out the owners manual and it states that you can only use HOAT type antifreeze which you buy directly from the dealer. So I talked to the Jeep dealer to find out more info about this antifreeze and they said the owners manual is correct and that you cant mix this HOAT type antifreeze with other types. Even if the bottle says compatible with all other antifreezes. The guy at the dealer pointed me in the right direction to where I could get this antifreeze and not have to pay out the butt at the dealer. Out of the 4 auto part stores in my area, only one actually carries HOAT type antifreeze. On the back of the bottle it states that its for 2002 and up Chrysler/Jeep's. I cant remember the name brand of the antifreeze but once I get up and about today ill check it out and let you guys know.

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Last edited by 07JeepXK; 06-21-2009 at 09:46 AM.
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post #8 of 73 (permalink) Old 06-21-2009, 09:08 AM
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Thanks 07,
I'll look for your info later.

Rob


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post #9 of 73 (permalink) Old 06-21-2009, 09:33 AM
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This is some PDF file I found from the Filter Manufacturers Council at http://www.filtercouncil.org/techdata/tsbs/05-2.pdf. The short answer is DO NOT MIX! I think it is possible to do a coolant flush and swap for the more conventional green IAT coolant, that would be my choice.

Quote:
The Color of Antifreeze
Until recently, the color of the most commonly used antifreezes for both light duty
and heavy-duty engine cooling systems was predominately green. Its change
interval is normally about every two years or 30,000 miles (50,000 km) of use.
Then, long life (LLC) / extended life (ELC) coolant / antifreeze was introduced in
an effort to reduce maintenance costs, downtime and environmental disposal
costs and issues. With the introduction of this totally new concept, antifreeze
manufacturers wanted to differentiate this new product from existing antifreezes.
To accomplish this, they introduced different colored dyes for their LLC / ELC
products. Orange and red dyes were used first; now it appears there may be
virtually no limit to the different dye colors that may be used.
The purpose of this bulletin is to describe the dye colors currently available, the
chemical technologies being used and which vehicle manufacturers are using
which technology based on the information that is readily available at the time
this bulletin was published. The member companies of the FMC are confident
this issue is not static and new technologies and dye colors will continue to be
introduced in the future.
Antifreeze is used in cooling systems to both lower the freeze point of water and
raise its boiling point. It is also used as a carrier for different types of additives
such as sodium silicate to protect aluminum from corrosion, anti-foaming agents
and other corrosion inhibitors. Although straight antifreeze actually freezes and
boils quicker than tap water, when mixed with water in the proper proportions (a
50% / 50% mix is ideal) in a cooling system, it greatly increases the cooling
system's ability to perform its designed function of removing heat from critical
engine parts and to enhance the service life of the various cooling system
components.
Inorganic Acid Technology (IAT) is the chemical composition for the traditional
antifreezes that are green in color. An IAT can be used with either ethylene glycol
(EG) or propylene glycol (PG). The normal IAT service life is two years or 30,000
miles (50,000 km).
Organic Acid Technology (OAT) was the first LLC / ELC introduced in North
America in 1994. OAT antifreeze had been widely used in Europe before its
introduction in North America. OAT can be either EG or PG but is mostly EG
based. Its first dye colors were orange and red. These dye colors are still used by
General Motors and Caterpillar. Green, pink and blue have been added to the list
of available OAT antifreezes. It is recommended that OAT not be mixed with any
other antifreeze technology. The normal OAT antifreeze service life is 5 years or
150,000 miles (250,000 km).
Hybrid Organic Acid Technology (HOAT) is a combination of IAT and OAT with
nitrites added. This makes HOAT suitable for use in both light duty and heavy
duty systems. Currently, two manufacturers are using HOAT for their vehicles.
Daimler/Chrysler's version is dyed orange and contains 10% recycled antifreeze.
Ford Motor Company’s version is dyed yellow and does not contain any recycled
antifreeze. Both of these HOAT antifreezes use the marketing designator of GO-
5. They are compatible with each other but mixing them with IAT or OAT is not
recommended. The normal HOAT antifreeze service life is 5 years or 150,000
miles (250,000 km).

Nitrated Organic Acid Technology (NOAT) is an OAT with nitrates added. This
makes NOAT also suitable for use in both light duty and heavy duty systems.
NOAT and HOAT are very similar in performance characteristics. Currently, no
OEM vehicle manufacturer is using NOAT. The normal NOAT service life is 5
years or 150,000 miles (250,000 km).
Since antifreeze is clear when it is manufactured, and water is clear, dye is used
to color the antifreeze for identification and marketing purposes. The color of
antifreeze is no longer an accurate indicator as to whether it is an IAT, OAT,
HOAT or NOAT formulation. Further, some antifreeze manufacturers market a
“universal” antifreeze they say is compatible with all OAT, HOAT and NOAT
formulations. These "universal" formulas are not for use with IAT and they will not
convert an IAT to an LLC/ELC antifreeze. Mixing IAT with OAT, HOAT or NOAT
antifreezes will not damage your vehicle’s cooling system; however the mixture
will negate the long life/extended life attributes of these formulations.
In conclusion, there are currently two oranges, two reds, green, dark green,
yellow, blue, blue-green, clear and pink dye colors available. With this variety of
dye colors and more to come, the service technician’s ability to properly service
and maintain light duty and heavy duty cooling systems properly will be greatly
challenged. It is imperative the technician be fully aware of what the vehicle
manufacturers' requirements for antifreeze are and those recommendations be
carefully followed. For further information regarding cooling system maintenance,
refer to TSB's 88-1R3, 89-1R2, 97-2 and 02-1.
For additional information, contact:
Filter Manufacturers Council
P.O. Box 13966
Research Triangle Park, NC 27709-3966
Phone: 919/406-8817 Fax: 919/406-1306
www.filtercouncil.org
Administered by Motor & Equipment Manufacturers Association

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Last edited by adamag25; 06-21-2009 at 01:58 PM.
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post #10 of 73 (permalink) Old 06-21-2009, 09:39 AM
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Excellent thread.

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