| Re: [GMCnet] Radiator Antifreeze Additive and Anode [message #229546 is a reply to message #229519] |
Tue, 12 November 2013 14:52   |
GMC_LES
Messages: 569
Registered: October 2009
Location: Montreal
Karma:
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Senior Member |
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Emery,
From my little bit of research, i found that not all of the OAT type coolants are created equally. Cummins have produced several tech documents that contradict the info in the link you provided. Apparently ( i am not an expert on this) Cummins was having gasket and seal problems with the early versions of the OAT coolants and created a new spec that carries their "Cummins 14603" certification. I have read that the ELC coolants carrying the 14603 spec are much safer, and we all know that everything we read on the web is 100% true.
My decision to use this coolant in my ford was based on reports of major engine problems related to use of the G-05 coolant that ford recommends. Apparently the designers of my engine (International) recommend using the Cummins spec coolants and not to use the G-05 in the commercial version of the engine.
For the GMC, It is sound advise to remain with the coolant that has worked for 40 years in our coachs, so i guess that is what i will do.
I still welcome any additional info on compatibility of the cummins spec coolant.
Les Burt
Montreal
1975 Eleganza 26ft
A work in Progress
On Nov 12, 2013, at 1:52 PM, Emery Stora <emerystora@mac.com> wrote:
> My opinion is that you should RUN, not WALK away from that idea.
> My son in law installed it into his older Plymouth Voyager van and it ruined the engine. He had a couple of thousand dollars of repair costs that the dealer attributed to the use of the Prestone ELC coolant.
>
> There are many articles on the net warning about the OAT technology. He is just one of them:
>
> http://forums.aaca.org/f162/urgent-warning-extended-life-anti-freeze-292163.html
>
> These coolants are not designed for older engines.
>
> Emery Stora
>
>> On Nov 12, 2013, at 9:52 AM, Les Burt <gmc.les@gmail.com> wrote:
>>
>> Emery,
>>
>> What is your opinion on the commercial grade "ELC" coolants used in the big diesels? Any benefit to us in our coaches?
>>
>> These coolants are rated for a life span of +/- 600,000 miles, 12,000 hours, or 6 years. Some are marked "OAT" for organic acid technology.
>>
>> They claim to have improved heat transfer rates and have no silicates so they are supposed to reduce or eliminate scale and deposits common to regular coolants.
>>
>> I am in the process of installing a coolant filter and the "ELC" coolant in my 2008 F250 diesel and was wondering if there would be any advantage or benefit to doing the same on my coach. I will probably convert all my vehicles to this same coolant so i only need to keep one coolant on hand. It reduces risk of mixing the wrong coolants.
>>
>> Your thoughts?
>
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Les Burt
Montreal
1975 Eleganza 26ft
A work in Progress
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