Coolant Flush - VC9 - Page 2 - Diesel Forum - TheDieselStop.com
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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.

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Old 11-05-2009, 10:47 PM   #16 (permalink)
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Acustrip makes test stips to test your glycol nitrates and freeze point.

$5.67 for 4 test strips delivered.

http://www.acustrip.com/CTS-3_Retail_Order_Form.pdf

Acustrip - Products



BTW - the key test is for NITRITES!
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Old 11-05-2009, 10:55 PM   #17 (permalink)
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Originally Posted by bismic View Post
BTW - the key test is for NITRITES!
No harm done. I thank you for questioning me.

Bismic: My coolant temperature / oil temperature has been approximately 7 - 9 deg different running unloaded on level ground at 65mph. Do you think I should redo my flush with VC-9 to get as much coolant / rust residue out of the system as possible? Especially to remove any deposits from the oil cooler.

Cody
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Old 11-05-2009, 11:06 PM   #18 (permalink)
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Originally Posted by steel10 View Post
No harm done. I thank you for questioning me.

Bismic: My coolant temperature / oil temperature has been approximately 7 - 9 deg different running unloaded on level ground at 65mph. Do you think I should redo my flush with VC-9 to get as much coolant / rust residue out of the system as possible? Especially to remove any deposits from the oil cooler.

Cody
I had the same question to answer for myself. At 50k I flushed the system without the VC9. I decided I would not re-do it MAINLY because I have a coolant filter and the last 3 filter changes did not have much solids. Also when I drained the fluid the first time during the flush procedure, I did not see any solids.

Do you have a coolant filter? Did you see any solids during any of the drains?

Your temperature differential does not seem too bad to me. Have you ever seen it over 15 *F - even before the flush?
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Old 11-05-2009, 11:13 PM   #19 (permalink)
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It seems like some are getting confused by my procedure. The last flush left 15.5 quarts of distilled water in the system when the pet**** quit draining. I then added 2 gallons (8 quarts) of pure Ford Gold Antifreeze.

8 quarts/15.5 quarts = 52% Antifreeze / 48% Water

I continued filling the coolant reservoir with a 50/50 mixture of Ford Gold Antifreeze and distilled water until the reservoir was full.

I checked my freeze protection using a coolant tester and it indicated that I was slightly over a 50/50 mix as was indicated by the freeze protection of ~-42deg F. A true 50/50 mix will yield a -34deg F freeze protection.

Cody

I think your reading with the coolant tester is correct. You will really never get all the antifreeze out of there... You calculations are not correct though.

50/50 is: half the capacity of the coolant system is water and the other half is straight antifreeze. Not 50% of the water left in the engine after you drain the radiator (thats where you got your 52/48 - 8 divided by 15.5). If you have 15.5qts of water and only 8qts of coolant you have 29.09% coolant in there (but there is still some old coolant in the "clear" water). It is essentially 50/50 of the 27.5 quarts not 50/50 of the 15.5 quarts.
Did you run the heat when you were heating it up? If not then you still had old coolant in your heater core.
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Old 11-05-2009, 11:36 PM   #20 (permalink)
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Bismic:

I have a coolant filter. I changed the filter after my flush / refill procedure. I didn't see any sediment / deposits coming out while draining nor in the filter when I cut it apart. Since I didn't see any deposits and my EOT / ECT hasn't varied by more than 7-9 degrees, I do not think I will redo and flush with the VC9.

Thanks,
Cody
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Old 11-06-2009, 08:45 AM   #21 (permalink)
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Thank you bondsman, I was just getting ready to do that. Also, are you testing the coolant in the tank? As the 50/50 concentration that you last put in may not be mixed with the rest of the coolant yet; you should test it from the pet****. Not to Hi-Jack but since so many people are watching this thread, what kind of filter systems do ya'll like best? And to help me not be an anal retentive ass what's the most efficient, quick and dirty way to change coolant if you plan on doing it every year. Thanks in advance, Eli.
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Old 11-06-2009, 05:31 PM   #22 (permalink)
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Originally Posted by 24hrsparkey View Post
I just had a re placement thermo stat + a power flushing , by the dealer. ( now there is a good chance i will have heat .

The dealer worksheet / invoice states they put in 2 gallons of gold.

I was thinking thats not enough , not sure.

**********************************

New NAPA anti freeze tester. Hey it was $9 and i wanted to know about my freeze protection situation

Tested from pet**** into small clean container Yelded freeze protection to minus 35-45 F
So i guess i'm good to go , and the dealer may have done it correctly. Corrosion protection and exact pure coolant percentage vs water , i dunno. At least it will not freeze.

I did a small container of 50-50 mix while i had my handy dandy tester out , just for giggles. 50-50 yielded -25F protection But most likly would not have the corrosion protection that seems nessisary in these engines.

thats all i know about that.
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Old 11-06-2009, 10:01 PM   #23 (permalink)
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My apologies - I did not read it that way. Good job!
your math should be 8qts out 27.5 not 8/15.5. if you take 15.5/27= 57% water and 43% antifreeze.
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Old 11-06-2009, 10:38 PM   #24 (permalink)
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your math should be 8qts out 27.5 not 8/15.5. if you take 15.5/27= 57% water and 43% antifreeze.
Removed my original math and redid it because you are correctd and I must have been brain dead .......

He left 15.5 quarts of water in and added 8 quarts of pure antifreeze. That now makes 8 quarts out of (15.5+8) or 8 out of 23.5 - that is 35%. Topping off w/ a 50/50 will never get you to a 50% concentration. Topping off w/ 100% will get you to the 43% you mention.
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Old 12-09-2009, 09:22 AM   #25 (permalink)
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Guys please answer his question what about the VC-9 Iron cleaner.

And can you get it at NAPA.

Question: I didn't use the VC-9 iron cleaner. Do you guys think that I need to repeat the flushing process illustrated above but use the VC-9 to clean the internal coolant passages as well as the oil cooler?


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Old 12-09-2009, 10:28 AM   #26 (permalink)
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Guys please answer his question what about the VC-9 Iron cleaner.

And can you get it at NAPA.

Question: I didn't use the VC-9 iron cleaner. Do you guys think that I need to repeat the flushing process illustrated above but use the VC-9 to clean the internal coolant passages as well as the oil cooler?

The only place I found the VC-9 was at dealer. $26.50 per qt. 2 needed. As for repeating I cannot answer that since I have no idea the condition of your system. The only reason I went with the expense is the tech at the local dealer said that he always uses it and it is a Ford recommendation if not a requirement. Ford did say to use it in the letter that they sent me on nitrates.
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Old 12-09-2009, 10:38 AM   #27 (permalink)
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When did our society get so scared of offending someone that PET**** has to have letters blanked out?

Main Entry: pet·****
Pronunciation: \ˈpet-ˌkäk\
Function: noun
Etymology: pet- (perhaps from petty) + ****
Date: circa 1864
: a small ****, faucet, or valve for releasing a gas (as air) or draining
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Old 03-04-2010, 11:16 PM   #28 (permalink)
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confused....

Ok ive read this whole thread 3 or 4 times.


If the coolant capacity of the truck is 27.5 quarts and the mix is to be 50/50, then doesnt that require 13.25 quarts of coolant?

50/50 means half water and half coolant. Therefore 13.25 quarts water, 13.25 quarts coolant.

correct?
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Old 03-04-2010, 11:17 PM   #29 (permalink)
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sorry i meant 13.75 and 13.75
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Old 03-04-2010, 11:58 PM   #30 (permalink)
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Originally Posted by bismic View Post
I had the same question to answer for myself. At 50k I flushed the system without the VC9. I decided I would not re-do it MAINLY because I have a coolant filter and the last 3 filter changes did not have much solids. Also when I drained the fluid the first time during the flush procedure, I did not see any solids.

Do you have a coolant filter? Did you see any solids during any of the drains?

Your temperature differential does not seem too bad to me. Have you ever seen it over 15 *F - even before the flush?
You are missing an important reason for using the flush on any diesel engine. The flush most importantly removes what is left the depleted and broken down protective layer that forms on the cylinder walls and other metal surfaces inside the cooling system. Once the system has been cleaned installing the correct coolant containing the SCA will allow a fresh layer to form providing continued protection from corrosion and cavitation erosion.

The coolant filter systems are not a bad idea and they do remove the debris from the system but you still need to service the system chemically. It is not wise to skip the flush.
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