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Unknown ELC in cast iron diesel - how to proceed #5089939
04/28/19 10:02 PM
04/28/19 10:02 PM
Joined: Dec 2002
Posts: 42,971
New Jersey
JHZR2 Offline OP
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My 82 MB 300CD turbo diesel had an orange Rotella ELC of some sort when I bought it out in LA, CA. I used the rest in a maintenance routine around 2013. The car has sat since then due to kids, but I want to start driving it again...

OE coolant was G-05, now superceded to G-48. I’m not a huge fan of going to G-48 due to the 2-eha. Ive had a lot of these cars that all keep original cooling systems on Oe coolant. They all have aluminum radiators and the nitrite content of g-05 hasn’t been an issue over 35+ years, so... I’d rather take continued chances with nitrite than 2-eha in the nitrite free g-48.

I have no reason to think poorly of the ELC, I just don’t know what I have. It seems that there are many types of ELC and EC-1 coolants out there, even under the rotella name. The stuff in my car is a pleasant, solid orange color. It may well be a gen-1 ELC that has 2-eha in it. But I’d rather not, if possible.

So, any opinions on what to do? I just got some G-05 on sale at Napa. I’m thinking of going to JD Coolguard II in my 91 350SD. But the 82 is not a mixed metal engine, so...

My 240D (one less cylinder) runs G-05. I’d prefer to have at least the 240d and 300cd on the same coolant, but in reality another coolant in the garage isn’t a big deal given that I already have Dex, g-05, g-48 and Honda blue...

Rotella ultra ELC? G-05 via a lot of draining and refilling? Cool guard II? Something else?

Thanks!

Re: Unknown ELC in cast iron diesel - how to proceed [Re: JHZR2] #5089966
04/28/19 10:31 PM
04/28/19 10:31 PM
Joined: Sep 2005
Posts: 6,476
MIchigan
Warstud Online content
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Re: Unknown ELC in cast iron diesel - how to proceed [Re: JHZR2] #5090055
04/29/19 01:50 AM
04/29/19 01:50 AM
Joined: Oct 2015
Posts: 3,084
Balearic Islands , Spain
FordCapriDriver Offline
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I would go with G-05


1975 Ford Capri II Ghia 3000 V6, - Shell Helix HX3 20W-50 w/ 20% Rimula R4X 15W-40 HDEO.
1988 Ford Escort XR3i Cabrio, - Shell Rimula R4X 15W-40
G40 Si-OAT coolant in both


Re: Unknown ELC in cast iron diesel - how to proceed [Re: JHZR2] #5090993
04/29/19 08:05 PM
04/29/19 08:05 PM
Joined: Apr 2009
Posts: 1,308
oh
roadrunner1 Offline
roadrunner1  Offline

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oh
Just use the CoolGard II and you'll know you are safe


'15 F350 6.7
Re: Unknown ELC in cast iron diesel - how to proceed [Re: JHZR2] #5094284
05/02/19 09:46 PM
05/02/19 09:46 PM
Joined: Sep 2017
Posts: 191
Southeast
BlakeB Online content
BlakeB  Online Content

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Peak Final Charge is Nitrate and 2-eh free and does not require SCA’s. It’s premixed 50/50 and only $12.xx/gallon at Walmart. You can get full strength, but WM has 50/50 red.
Walmart has the red version, but it’s avaialble in yellow as well.

https://www.peakhd.com/wp-content/u...e%20%20Red_Spec%20Sheet_hires.pdf?x38462

https://www.peakhd.com/wp-content/u...ellow_Spec%20Sheet_0215_hires.pdf?x38462

Re: Unknown ELC in cast iron diesel - how to proceed [Re: BlakeB] #5095501
05/04/19 08:25 AM
05/04/19 08:25 AM
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Originally Posted by BlakeB
Peak Final Charge is Nitrate and 2-eh free and does not require SCA’s. It’s premixed 50/50 and only $12.xx/gallon at Walmart. You can get full strength, but WM has 50/50 red.
Walmart has the red version, but it’s avaialble in yellow as well.

https://www.peakhd.com/wp-content/u...e%20%20Red_Spec%20Sheet_hires.pdf?x38462

https://www.peakhd.com/wp-content/u...ellow_Spec%20Sheet_0215_hires.pdf?x38462


Thanks., wonder how it is cat EC-1 rated yet nitrite free.

Re: Unknown ELC in cast iron diesel - how to proceed [Re: JHZR2] #5096138
05/05/19 01:02 AM
05/05/19 01:02 AM
Joined: Sep 2017
Posts: 191
Southeast
BlakeB Online content
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Re: Unknown ELC in cast iron diesel - how to proceed [Re: BlakeB] #5096349
05/05/19 09:41 AM
05/05/19 09:41 AM
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New Jersey
JHZR2 Offline OP
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That says it meets, but doesn’t address nitrite specifically. Iirc, a range is stated in EC-1.

Re: Unknown ELC in cast iron diesel - how to proceed [Re: JHZR2] #5096879
05/05/19 08:18 PM
05/05/19 08:18 PM
Joined: Dec 2009
Posts: 27,776
Regina, Saskatchewan, Canada
Garak Offline
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Regina, Saskatchewan, Canada
Just for interest's sake, you may want to take a look at Shell's document portal. They have something like three or four HD ELC type coolants under Rotella, and you mentioned them in your original post, and one of them might suit your fancy.


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, Wix 57356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
Re: Unknown ELC in cast iron diesel - how to proceed [Re: Garak] #5099003
05/07/19 11:46 PM
05/07/19 11:46 PM
Joined: Dec 2002
Posts: 42,971
New Jersey
JHZR2 Offline OP
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Originally Posted by Garak
Just for interest's sake, you may want to take a look at Shell's document portal. They have something like three or four HD ELC type coolants under Rotella, and you mentioned them in your original post, and one of them might suit your fancy.


I did, and even contacted them. Rotella Ultra looked good, but Imwas told it is being discontinued. They were pushing Rotella NF though it has 2-EHA.

Re: Unknown ELC in cast iron diesel - how to proceed [Re: JHZR2] #5099046
05/08/19 02:27 AM
05/08/19 02:27 AM
Joined: Dec 2009
Posts: 27,776
Regina, Saskatchewan, Canada
Garak Offline
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Regina, Saskatchewan, Canada
Ah well, that doesn't help. Maybe a fair bit of the Ultra might be available at a distributor, at least to keep you going for a while. wink G-05 is always an easy option, but I'm beginning to wonder about its availability, too, with both Mercedes and Ford changing things up.


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, Wix 57356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
Re: Unknown ELC in cast iron diesel - how to proceed [Re: BlakeB] #5099870
05/08/19 06:51 PM
05/08/19 06:51 PM
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Posts: 191
Southeast
BlakeB Online content
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Originally Posted by BlakeB
Peak Final Charge is Nitrate and 2-eh free and does not require SCA’s. It’s premixed 50/50 and only $12.xx/gallon at Walmart. You can get full strength, but WM has 50/50 red.
Walmart has the red version, but it’s avaialble in yellow as well.

https://www.peakhd.com/wp-content/u...e%20%20Red_Spec%20Sheet_hires.pdf?x38462

https://www.peakhd.com/wp-content/u...ellow_Spec%20Sheet_0215_hires.pdf?x38462

Actually I can’t read, it’s nitrite free, not nitrate free.

Re: Unknown ELC in cast iron diesel - how to proceed [Re: JHZR2] #5099956
05/08/19 08:04 PM
05/08/19 08:04 PM
Joined: Dec 2002
Posts: 42,971
New Jersey
JHZR2 Offline OP
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Nitrites are the bad ones for aluminum. My system has aluminum in it...

Actually, just got 6 gallons of JD Coolguard II because it was recommended for my 350SD mixed metal engine. So I’m going to use that in both the SD and my 300CD. I have enough G-05 in stock to use that in my 240D for another few changes...

Re: Unknown ELC in cast iron diesel - how to proceed [Re: Garak] #5099962
05/08/19 08:11 PM
05/08/19 08:11 PM
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Originally Posted by Garak
Ah well, that doesn't help. Maybe a fair bit of the Ultra might be available at a distributor, at least to keep you going for a while. wink G-05 is always an easy option, but I'm beginning to wonder about its availability, too, with both Mercedes and Ford changing things up.


Yeah, G-05 long term availability was one thing on my mind. Seems like JD Coolguard II is the (IMO) rightful replacement for G-05 as it is a low Silicate Antifreeze HOAT with new-tech OATs, excellent corrosion protection, and no 2-EHA.

The 2-EHA was a great part of my concern. My 350SD was really well maintained. The HG hadn’t breached into the combustion chamber. In being well kept, it had G-48 in it as that’s what the MB 325.0 sheet now lists (vs G-05 which it used to). G-48 is nearly identical but it has 2-EHA. Could my HG have a silicone seal that was breached?

So now I’ll use the same coolant for two if not three of my diesels, keep Dex in my S-10, Honda in the Hondas, and G-48 I my BMW... unless I go cool-Gard there too!

Re: Unknown ELC in cast iron diesel - how to proceed [Re: JHZR2] #5099968
05/08/19 08:16 PM
05/08/19 08:16 PM
Joined: Dec 2009
Posts: 27,776
Regina, Saskatchewan, Canada
Garak Offline
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Yes, fortunately JD can be relied upon for some of these things over the years. I haven't been in the Walmart auto section for so long, I'm not even sure how much G-05, if any, is still available there, and if it's only premix, or what. Generally speaking, we do okay up here, since there are obvious problems in providing premix only coolants in our climate. You do a real flush and fill without a concentrate, January and February could get very interesting.


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, Wix 57356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
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