gold coolant
Post Fiend
Joined: Feb 2002
Posts: 10,600
Likes: 3
From: Carhenge
Originally Posted by blown99
If your new antifreeze is ethylene glycol based you will be alright (although your ford owners manual says to not mix the two). It is when you switch from glycol based to the RED (dexcool, texaco extended life antifreeze, etc.) that you will have the problem. The o-ring gaskets were getting eaten up/pitted after the swithc from glycol based to red elc. As I stated earlier, the units that came trough from the factory with the Red elc had virtually no leaks. The leaks were only/mainly the units that were switched. I think navistar had a section in there TIPS book on this subject, I'll see if I can locate. None of this is an opinion but rather facts compiled over a 4-5yr period on a line set of over 250 identical vehicles with the only difference being the coolant type. If I could access the navistar web site from this computer I would copy the list of failures for you all to see. You'd probably want to get rid of your trucks though.
The only non-ethylene glycol coolant I'm aware of is Evans, which is also ok for engines as far as compatability goes.
Color makes no difference, it is simply a dye. You can get any of the above coolants types (except Evans) in purple, green, yellow, red, orange or just about any color you want. My Wife's Concorde has orange coolant in it, but it's not dexcool, and the cooling systen is not dexcool (OAT) compatible.
Everything I've read indicates that HOAT, NOAT, and traditional silicate coolants are all compatible with our 99.5+ cooling systems. The older engines need to stick with tratitional silicate coolants.
If you're putting OAT (dexcool) coolant in, you are indeed going to have problems.
Fleet Owner
Joined: Jan 2004
Posts: 26,007
Likes: 575
From: Brentwood,CA
clux,
i emailed SOPUS to find out on the shell elc, i asked if it is dexcool based. they said dexcool is general motors trade name, but that it was made using the same base but they could not say it is dexcool base. as that would infringe on trademarks.
ok did some more digging, it turns out shell makes a dexcool based ELC and a glycol based coolant.both are the same color and same bottle just different part numbers.here is the specs for the glycol based one.
http://www.shell-lubricants.com/prod...RotellaELC.pdf
i emailed SOPUS to find out on the shell elc, i asked if it is dexcool based. they said dexcool is general motors trade name, but that it was made using the same base but they could not say it is dexcool base. as that would infringe on trademarks.
ok did some more digging, it turns out shell makes a dexcool based ELC and a glycol based coolant.both are the same color and same bottle just different part numbers.here is the specs for the glycol based one.
http://www.shell-lubricants.com/prod...RotellaELC.pdf
Last edited by ford390gashog; Jan 13, 2006 at 10:01 PM. Reason: edit
Junior User
Joined: Feb 2005
Posts: 83
Likes: 0
Clux, You say the OAT is Dexcool ??? The product I am looking at is Peak final charge global ELC 50/50 ,listed as OAT
(Organic Acid Technology ) its properties are
50% Water
45-49% Ethylene Glycol
0-2.5% Diethelene Glycol
Do you think this is ok in my 2000 ?? Thanks
(Organic Acid Technology ) its properties are
50% Water
45-49% Ethylene Glycol
0-2.5% Diethelene Glycol
Do you think this is ok in my 2000 ?? Thanks
Fleet Owner
Joined: Jan 2004
Posts: 26,007
Likes: 575
From: Brentwood,CA
ok just checking.so then when members buy rotella elc make sure to get the 94060 and not the 94060 dexcool. i wonder why rotella did not make these look different. this could cause confusion and the wrong coolant may be used by mistake. the packaging looks the same just a different part number.
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Senior User
Joined: May 2005
Posts: 343
Likes: 0
From: Sewanee, Tennessee
Originally Posted by clux
Go over to TDS and post that diesel ELC's are no good in the 7.3.
But put your flame suit on first.
But put your flame suit on first.
Senior User
Joined: Aug 2005
Posts: 123
Likes: 0
Originally Posted by clux
That's the most important point out of this whole thread, ford390. You shouldn't choose your coolant based on the color, because it doesn't mean anything.
Elder User
Joined: Jul 2004
Posts: 756
Likes: 1
I found this, and it helped me a little. Atleast now I know why there's 2 reds.
http://www.filtercouncil.org/techdata/tsbs/05-2.pdf
http://www.filtercouncil.org/techdata/tsbs/05-2.pdf
Fleet Owner
Joined: Jun 2004
Posts: 25,090
Likes: 1,111
From: Rio Rico, AZ.
Fords4me that did help.
After all this is that has been said in this thread, I think I am going to stick with the Shell Rotella that I have in my truck now. Just about every problem that I have read about is when different coolants were mixed into the cooling system and driven that way. Mine was flushed for a good half hour with a hose running the whole time after I drained the system and removed the block drains. There is no way that there is anything but Rotella in my system. Time will have to prove me right or wrong. Plus I have no intention of leaving the coolant in there forever. Knowing me, I'll most likely have changed it out within 5 years because I am just paranoid that way.
Blown99 I want to thank you for your input in this thread, the voice of experience has great value.
After all this is that has been said in this thread, I think I am going to stick with the Shell Rotella that I have in my truck now. Just about every problem that I have read about is when different coolants were mixed into the cooling system and driven that way. Mine was flushed for a good half hour with a hose running the whole time after I drained the system and removed the block drains. There is no way that there is anything but Rotella in my system. Time will have to prove me right or wrong. Plus I have no intention of leaving the coolant in there forever. Knowing me, I'll most likely have changed it out within 5 years because I am just paranoid that way.
Blown99 I want to thank you for your input in this thread, the voice of experience has great value.