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Originally Posted by LarryM
As mentioned above in the lengthy ELC post the newer ELCs IMHO are used because they have a longer life than the old green/SCA that has been used for many, many years and in the long run for the big rigs are more cost effective.
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Longer life is only
one reason. Heavy Duty ELC's provide better cavitation and corrosion protection, particularly as miles/operating hours add up...Other coolants like conventional w/SCA and the Gold have to be flushed because their inhibitors are worn out. HD ELC's have better heat transfer...They leave no layer of SCA for the heat to pass through. HD ELC's contain no abrasive silicates, borates, or phosphates to eat your water pump or plug your cooling system...they are silicate-free. HD ELC's require no maintenance for long periods, making them more cost effective. They are coolants designed specifically for diesel engines and they meet the most strict requirements in the industry, EC-1. The Gold won't.
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Originally Posted by LarryM
Both Dodge and Ford for their parent bore engines use the Gold or Zerex G-05 as the recommended coolant in both their diesels and their gas engines as a best all around coolant meets each manufactuer's requirements
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Ford does not make this engine, International does. And International recommends and factory fills with Heavy Duty ELC. While the Gold G-05 may be a universal, one-size-fits-all coolant for Ford and it's entire line of gasoline engines, it is not the
best choice for a diesel coolant. It is merely adequate. It will not meet the most strict specs. The HD ELC will.
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Originally Posted by LarryM
They also still have a tech bulletin out stating that ELCs and gasket materials having silicone in them is a NO, NO and had failures with the ELC in the past before they changed some things.
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This is bad information, and completely false.
In the past LarryM has floated around a technical bulletin that relates to a unique front cover gasket/ELC problem with a
different International engine, the DT466. It does not apply to the T444E (Powerstroke), and nowhere in any bulletin will you find anything about failures with the T444E (Powerstroke) and HD ELC coolants.
In July of 2000 International approved the use of HD ELC coolants in all of its engines built after 2/2/99 (SN 940614). In fact they factory filled with it.
I also might add that the Gold G-05 that Ford recommends contains the same OAT carboxylate chemistry that HD ELC's do. The difference being that the Gold G-05 also contains the conventional silicate-containing chemistry of traditional "green" coolants. Thus it is a "hybrid" coolant. So if there were problems with the OAT chemistry in HD ELC's and the T444E Powerstroke's gaskets (there are not), it would also be happening with the Gold G-05 (it is not). Many PSD owners and fleets have been using HD ELC's for years without issues. We certainly don't see any here at "the diesel stop"....and I've been here well over 10 years (previously Abigndon/Ford diesel.com).
