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Old 07-31-2018, 08:37 PM   #1
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Anti-Freeze

What is the difference between pink and green anti-freeze? I have 3208 T/As...
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Old 07-31-2018, 08:43 PM   #2
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What is the difference between pink and green anti-freeze? I have 3208 T/As...
The color.
I know that answer may look stupid but...

L
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Old 07-31-2018, 08:44 PM   #3
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The color.
I know that answer may look stupid but...

L
You stole my answer.
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Old 07-31-2018, 08:48 PM   #4
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You stole my answer.
Very glad to meet another great mind lol

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Old 07-31-2018, 08:59 PM   #5
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Green antifreeze contains Glycol and cannot be used for winterizing as you cannot dump it into the water when starting your engine. Green should only be used in your fresh water cooling (also orange). Pink antifreeze is used for raw water systems and potable water systems.
Unless I'm missing something with the original post this is very common knowledge.
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Old 07-31-2018, 09:16 PM   #6
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Green antifreeze contains Glycol and cannot be used for winterizing as you cannot dump it into the water when starting your engine. Green should only be used in your fresh water cooling (also orange). Pink antifreeze is used for raw water systems and potable water systems.
Unless I'm missing something with the original post this is very common knowledge.
John
Don't mind me but this is not quite true.
The "green" (and note that color is just a dye) is ethylene glycol. The pink (again a dye) is propylene glycol. Both are glycol but of different type and the "pink" is less "environmental toxic" than "green". Propylene glycol is compatible with potable water plumbing and food processing chain (even if it is a type of glycol).

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Old 07-31-2018, 09:28 PM   #7
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Just as a short sideline; Detroit suggests the use of their pink colored anti-freeze in the DDA 8.2L engines. Something about SCCA's being good for their old innards; just sayin'
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Old 07-31-2018, 09:32 PM   #8
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Lou is correct. Ethylene glycol which is dyed green, yellow or orange is used in engine cooling systems and is very toxic. Dogs have been known to die from lapping up a puddle of it.

Propylene glycol which is usually dyed pink is used for winterizing water systems and is reasonably safe to drink (a little).

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Old 07-31-2018, 09:39 PM   #9
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Ok; I'm assuming the green we're talking about here is the type used in auto's and not some marine type that i'm not aware of. In New Jersey and Pennsylvania used green antifreeze needs to go to a recycling center. If you dump it into the water you're looking at a very hefty fine.
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Old 07-31-2018, 09:45 PM   #10
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What is commonly called pink is the propylene glycol usually used to winterize water systems. However you do not want to use that in your engine, especially a diesel.

Automotive antifreeze (usually but not always ethylene glycol) can be had in a rainbow of colors depending on the manufacturer, including something looking a lot like pink. The long life versions have a different corrosion inhibiting chemistry than antifreeze in the past. I'd find what the engine manufacturer recommends and stick to that spec. Sometimes there is even a reason for it.
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Old 07-31-2018, 10:20 PM   #11
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Cat makes a pink antifreeze for their engines. Best you read the labels. Cat antifreeze is DEAC, definitely not the same As RV antifreeze. Color may not be the way to decide whether your AF is correct.
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Old 08-01-2018, 05:21 AM   #12
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Color is not the determiner, chemistry is.

The explanations of glycol and propylene have been correct.

Some colors may be hard to determine in a cooling system, if not sure there are recommended flushing procedures to ensure a good, new clean mix.
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Old 08-01-2018, 06:25 AM   #13
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Folks using "drinkable " AF to winterize the boats fresh water system will do best by filling the lines and leaving them full.


If you simply flush with the pink goo some will be left in lines and devices , where it can go solid.


This means in the spring it may take a week and multiple flushes to soften the dried out AF and have clear water .
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Old 08-01-2018, 06:45 AM   #14
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I have been told not to mix them in the same engine--will cause clumping.


But, that might have been a discussion about the Cummins blue anti freeze and others.
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Old 08-01-2018, 06:54 AM   #15
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Greetings,
Mr. ASD. As an aside...I have found from past winterizations of the potable water system that IF I use the "pink" RV stuff (propylene glycol) in the water heater, it takes, what seems to be, forever to flush the residual taste out of the system. So, as a result, I drain the water heater, bypass it and fill the rest of the system with AF. In the spring, a thorough flushing with fresh water with the water heater STILL bypassed is SOP. Seems to be successful. YMMV.
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Old 08-01-2018, 07:20 AM   #16
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Folks using "drinkable " AF to winterize the boats fresh water system will do best by filling the lines and leaving them full.


If you simply flush with the pink goo some will be left in lines and devices , where it can go solid.


This means in the spring it may take a week and multiple flushes to soften the dried out AF and have clear water .
Good point! I always let each fixture "run pink" and close it up. But where it is left to evaporate, like in the sink, it does take a bit of effort to remove. If that happened inside the lines, you'd be tasting it all season!
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Old 08-01-2018, 11:02 AM   #17
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Quote:
Originally Posted by Lou_tribal View Post
The color.
I know that answer may look stupid but...

L
Quote:
Originally Posted by Drake View Post
You stole my answer.
Quote:
Originally Posted by Lou_tribal View Post
Very glad to meet another great mind lol

L
And I thought I was the only one too, but had to ask!
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Old 08-01-2018, 11:07 AM   #18
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OK not winterized fluid. Pink or orange is the same to me. So there really isn't any difference then, other than color. On Prestone's bottle it says their anti-freeze (green) can be used in either system.
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Old 08-01-2018, 08:34 PM   #19
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Green antifreeze contains Glycol and cannot be used for winterizing as you cannot dump it into the water when starting your engine. Green should only be used in your fresh water cooling (also orange). Pink antifreeze is used for raw water systems and potable water systems.
Unless I'm missing something with the original post this is very common knowledge.
John


I didnít know it, but then I have an uncommon level of ignorance.
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Old 08-01-2018, 08:38 PM   #20
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Continuing with my ignorance theme...

Why canít propylene glycol be used in an engines cooling system?
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