Quote:
Originally Posted by DIESELSITE
 Thanks Gooch and LarryM (other post) for posting their additional input.
I think it's very important that everybody gets the most complete information they can. If my post caused you the post the very detailed info that you did on all the coolant types, then the reason for my post worked.
Yes, much of the info in my post is very old, as many of the links are dated back to 1999 and 2001. However, can you tell I hate SCAs? 
Bob |
Bob,
My other post in the closed thread was directed more at the actual cavitation issues with at least the 7.3L parent bore engine. 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. 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, and Ford that has some Dodge/CAT engines recommends some additional additives to the Gold which evidently isn't very good for engines that use actual liners. IH/NAVSTAR for probably the same reason now use the ELCs in both their parent bore and cylinder lined engines (which the latter is probably the majority of their engines less those sold to Ford and is therefore more cost effective than using two different coolants). 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.
For these reasons I don't think the Evans gains you much at least in the 7.3L as far a cavitation goes, but because it's waterless should make things like the WP last much, much longer and be less corrosive on the weak links where ever they are like the thermo housing. Also, even tho it has less actual heat transfer properties than a coolant that uses water with at least the 7.3L engine that is evidently a non issue since the 7.3L cooling system is extremely robust.
Larry
