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6.0L Power Stroke Engine and Drivetrain Discussion of the 6.0L Power Stroke diesel engine and drivetrain in the 2003-Up Super Duties and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.0L Power Stroke engine.

Thread: Orange/Red spillage from degas. Reply to Thread
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  Topic Review (Newest First)
09-04-2018 09:00 PM
Boomer Pledge So this is the sound im talking about. Im not sure if the video helps. But i also noticed like a jingling sound... like chains or keys or something.

The first two are about the vacuum sound.

^ this one was supposed to be the sound of the jingle if you will. but you cant really hear it.
09-04-2018 03:43 PM
79jasper Oh, Florida. Well that answers that. Lol

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09-04-2018 10:19 AM
Boomer Pledge The were low. They dropped out of no where. after driving. the Temp outside was probably 75. I live in florida and it was night.
And i am not sure what a sooner is so not sure how to answer that one.
09-04-2018 09:25 AM
79jasper No, the noise was the fan coming on.
Those temps seem low. What was outside temp?
I have to ask, are you a sooner?
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09-04-2018 07:55 AM
Boomer Pledge I was driving the truck and out of no where both the EOT and ECT dropped by 25 degrees or so. Then I also noticed that when I came to a stop and then accelerated it sounded like an 18 wheeler acceleration/ or maybe a vacuum sound (that loud hum and the harder I accelerated the louder it was)? After it dropped the oil temp wouldnt go above 150 and the coolant was around 135-150 also im pretty sure MPG dropped as well. there were points where the deltas were 17 degrees and it stayed there for a while. I parked it and letting it cool down to see if the same issues will be replicated. Any ideas on what it could be? I googled it and it could be the turbo is leaking somewhere so I should check the hoses. but would the turbo cause the decrease in temps?
09-01-2018 05:04 PM
ArcticDriver Isn’t your Ford radiator aluminum and does not rust?
09-01-2018 10:01 AM
ArcticDriver There are a number of chemical flushes that remove rust.

Products like water wetter work by a different chemical process than glycol coolants.

It will require a very thorough flush when you go back to a proper coolant.

Plus I don’t think Water Wetter is even diesel rated or has sufficient SCA levels and would risk issues of cavitation. Hopefully someone can provide some facts.

I would add around 40% ELC coolant for the week it takes you to get a new radiator. Just one of the cheaper products.

There are some real junk aftermarket radiators. I would choose to keep my Ford factory radiator and have it cleaned at a radiator shop rather than buy a cheap aftermarket.
09-01-2018 07:50 AM
Boomer Pledge Spoke to a friend and he said once the radiator gets rusts there's no taking it out. So just to use it till it breaks and then replace it. What would be the negative effects if I used just distilled water and wetter in the degas redivior until I have to replace the radiator then I replace it with the cat elc1? I plan on doing it in the next two weeks. And not putting more than 500 miles on the truck. Also I noticed while I stay still the eot and ect get close like 3 degrees apart to each other (178 coolant 181 oil) the coolant gets hotter and the oil gets cooler while I'm driving they're a constant 10-13 difference the coolant gets cooler while driving and the oil gets hotter(172 coolant 185 oil).... is that normal?
08-30-2018 02:10 PM
bismic Fords procedure states a "careful acceleration to WOT" or something like that. Many people got frustrated with the vagueness of it, so an internet standard was sort of adopted. The standard is now a steady 55-65 mph on level ground. Of course it requires the engine to be fully warmed up.

That said, if an oil cooler is 100% healthy, you shouldn't exceed the 15 degree differential even when towing. Some people worry about a 20 degree differential when towing heavy on a 100*F day. I wouldn't be too concerned with that, but 20*F would be my upper limit when towing heavy (as long as you were below the 15*F under normal driving).
08-30-2018 11:12 AM
79jasper Most of the time the reading is done while at a constant in the highway. Takes some of the variable out.

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08-30-2018 09:03 AM
ArcticDriver Bismic,

I learn alot every time you post.

I should have been more specific. I think the 15* Delta has been shown a good rule to follow but I wonder if there are not parameters when the temperatures should be compared.

For example, an engine still warming up could see big deltas and so could an engine in traffic or topping a pass, etc..

Isn’t there some standard that the truck should be cruising on fairly consistent terrain with a steady load on the engine, etc?

08-30-2018 08:32 AM
bismic Certainly the 15 degrees is only a "guideline".

Remember Navistar and Ford first came out w/ a 25 degree limit. Later dropped down to 15 degrees.

Originally, it was to prevent EGR cooler failures due to the restricted oil cooler preventing coolant flow through the EGR cooler. Then they started seeing more and more oil cooler failures. Then we started seeing some examples of melted oil filter standpipes from extra hot oil!

IMO the OEM oil coolers are a GREAT design, but if the temperature differentials get too high it causes mechanical stress on the heat exchanger. The result of this stress is a failure. I believe that the 15 degree limit is possibly conservative, but this is an area that warrants the conservative approach.

The other thing to watch is the actual oil temp. Remember that the oil temp is really the coolest temp for the oil in the engine. The oil in the pan is often times as much as 50 degrees hotter. Oil in some engine locations could be even higher. Ford's oil temp (EOT) limit (when the PCM begins to "de-fuel") is 253*F. IMO this isn't conservative enough. I would put it closer to 235 *F personally. The hotter things are, the less operating life they will have.
08-30-2018 12:25 AM
Originally Posted by dillon134 View Post

I think people stress too much about the EOT / ECT deltas. If it is about 16 degrees and stays there, then you might have issues.

Also, don’t the Deltas only matter when the truck reaches operating temperature?

ECT of 160* ? Is that normal temp for a 6.0 ?
08-29-2018 11:16 PM
dillon134 For what it's worth, I just installed a new OEM Oil Cooler and BulletProof EGR Cooler and my deltas are usually 5-10 degrees. I run Zerex HD Coolant (Red).

I think people stress too much about the EOT / ECT deltas. If it is about 16 degrees and stays there, then you might have issues.
08-29-2018 09:05 PM
Boomer Pledge i dont get this truck. it depends the day i drive it if the deltas decide to be good and stay within 5 degrees of each other or not. yesterday i changed the oil to rotella t6 and changed the oil filter. today i test drive it and the deltas were within 3 degrees of each other until about 160 degrees where the coolant just hovered from 16-168 and the oil climbed to 180. today it decided to be a constant 11-14 difference with it hitting a difference of 16 for a brief min. With synthetic oil should the operating oil temp be lower? It really didnt go about 180 and i was driving on the highway at 60-70 mph. Also is the 16 degree delta detrimental or is it okay if it did that for a minuet?
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