Hi Brian. I going to use this post to answer, as best I can, your question here and also your questons via the PM route (so that everyone can see my reply).
First of all, thanks for purchasing and downloading the Sept. 09 issue of BCM and reading my article.
I want to quote a question you asked via PM so that I can talk about the article:
Interestingly enough, the Shell Zone coolant I bought at a Freightliner dealer is not ASTM D-6210. It says it is formulated for heavty duty diesels and it also says it meets ASTM D-4985 for HD diesel engines.
That was in reference to the antifreeze you first put in your engine. The reason I wanted to include that quote is to point out that my article really only covered the basics of antifreeze. As I did my research, my mind was boggled at all the technology that has been developed in recent years. Some of that technology is just now beginning to become standardized by SAE and ASTM. Those two agencies will not work on a standard if there is only one supplier. Once other manufactures offer the same technology, the standards process can begin.
When I wrote the article, I listed the two most prevalent ASTM standards so as to avoid making the article to complex. As far as I know, the only automotive ASTM standard is D-3306 and products meeting that standard are the ones that DD (as well as CAT and Cummins) USED (more later) to say to AVOID. As I prepared this reply, my mind became even more boggled. You will see why in some comments below.
ASTM D-6210 is described as: a Standard Specification for Fully-Formulated Glycol Base Engine Coolant for Heavy-Duty Engines. ASTM D-4985 is described as: a Standard Specification for Low Silicate Ethylene Glycol Base Engine Coolant for Heavy Duty Engines Requiring a Pre-Charge..... There are other ASTM standards for HD Diesel engines that I did not want to site in order to keep the article simple
- yeah, right!
So, maybe I would have better served the subject by saying that D-6210 and any antifreeze designed for HD diesel application should be used; and then sited the various ASTM standards (D-6210, D-4985, etc). The other way to find what you want is to read the labels on the bottle. I bought a product labeled Power Cool with a DD part number 23512138.
So, today I read the label on my recently purchased Power Cool (23512138) and it does indeed meet all of the OEM's HD diesel standards and ASTM D-6210. It does not state that it is long life, but it is a sort of pink color.
BUT WAIT, what do I see on the label, but the fact that it also meets ASTM D-3306
So, now I am getting a bit lost as to what to recommend. For now (head swimming too much to do any more research), I guess a person should read the label and make sure it meets one or more of the following:
DD spec 7SE298
ASTM D-6210 or D-4985
RP-329 written by the Maintenance Council American Trucking (I have tried to find this on the net and can't - if anyone has link, please let me know).
Brian, I got my Power Cool antifreeze from ATTP in Denver (three zero three 301-7520) They have a website (http://www.todaysparts.com/
). but it does not have any significant content. I paid $10.91 on 12/30/09 as a walk in customer.
After all that, I think my name is