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Old 05-17-2016, 03:28 AM   #1
Join Date: Mar 2010
Location: Texas
Posts: 212
Year: 1997
Coachwork: AmTran
Chassis: Genesis
Engine: DT466
Rated Cap: 84
HD Extended Life Coolant

After going nuts with coolant research, I have come to the conclusion that this stuff FAQ - Final Charge | is the best stuff to get, in particular for my 1997 DT466 engine.

It is an OAT type heavy duty ELC without nitrite and (most importantly) compatible with silicon seals. It also meets the Cat EC-1 guidelines.

The key which makes it 'the best' is that it is rather foolproof with not requiring any additives or test strips, supposedly providing superior protection to the green stuff with SCA, being easier on the water pump and cooling components, and lasting 6 years.

There are other brands I ran into with similar specs, all good, but the Peak stuff had more straightforward information on what was going on. I also ran into many which were decidedly NOT compatible with silicon seals due to use of the cheaper ethyl-hexanoic acid.

I have also learned that Zerex G05 is not probably not a good idea for this engine, despite what I had initially thought.

This said, the 'basic green stuff' with proper SCA additive and upkeep will run fine too. The engines were designed for it, after all. This is basically a 'what is best for me' choice.
Timelord is offline   Reply With Quote
Old 05-17-2016, 10:17 AM   #2
Bus Nut
Join Date: May 2014
Location: West Ohio
Posts: 917
Year: 1984
Coachwork: Bluebird
Chassis: International 1753
Engine: 6.9 International
Rated Cap: 65
That's what we use on any diesel that has an egr cooler. It's one of the few that are silicate free which is why I chose it. Silicates have been known to fall out of suspension and subsequently plug up egr coolers. Ford/Navistar had a hard time with that in their 6.0 and especially the 6.4 engines.

It's good for 8 years/1,000,000 miles. It's not cheap by any means but I will agree that it is probably the best stuff on the market for diesel engines.
Booyah45828 is offline   Reply With Quote

antifreeze, coolant, dt466, elc, sca

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