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 > Antifreeze no longer pink

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DrewE

Vermont

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Posted: 12/13/20 12:58pm Link  |  Quote  |  Print  |  Notify Moderator

The dye color can fade, but so long as the bottle is sealed, there's no way for the antifreezing components (ethanol and/or PEG) to escape. I wouldn't have any qualms about using year-old discolored antifreeze, assuming of course it doesn't seem like there's something slimy growing in it or it's otherwise obviously bad and not merely faded.





rlw999

Washington State

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Posted: 12/13/20 01:30pm Link  |  Quote  |  Print  |  Notify Moderator

DrewE wrote:

The dye color can fade, but so long as the bottle is sealed, there's no way for the antifreezing components (ethanol and/or PEG) to escape. I wouldn't have any qualms about using year-old discolored antifreeze, assuming of course it doesn't seem like there's something slimy growing in it or it's otherwise obviously bad and not merely faded.


I have a year-old bottle of RV antifreeze and its color didn't fade, so I don't think I'd use a bottle if it did fade given the expensive consequences if it doesn't work as expected.

magicbus

Nantucket Island, MA

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Posted: 12/13/20 01:31pm Link  |  Quote  |  Print  |  Notify Moderator

Tom_M wrote:

Put some in your freezer and see what happens. RV antifreeze can freeze but will not expand. It will likely turn to slush.
Why guess. This test will tell you all you need to know. I keep RV antifreeze from year to year and never saw it fade, but a simple test is better and cheaper that replacing something that probably is still good.

Dave


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cavie

Port Charlotte Fl/ Hindsdale MA

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Posted: 12/13/20 08:10pm Link  |  Quote  |  Print  |  Notify Moderator

throw it away and spend $5.00 on new.


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olfarmer

Iowa

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Posted: 12/13/20 11:26pm Link  |  Quote  |  Print  |  Notify Moderator

I am with everyone that said buy new, not worth the risk for what it costs. I am curious though because I winterized my MH a year ago and haven't used it. I hope the antifreeze is still good!


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olfarmer

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Posted: 12/13/20 11:27pm Link  |  Quote  |  Print  |  Notify Moderator

double post deleted

* This post was edited 12/15/20 09:50pm by olfarmer *

wa8yxm

Davison Michigan (East of Flint)

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Posted: 12/14/20 05:09am Link  |  Quote  |  Print  |  Notify Moderator

I recall a thread oh. perhaps 12-15 years ago somneone asking if he could use ENGINE type antifreeze instead (NO by the way)

I ask why At the time Engine stuff was like 8.00/gallon
Pink stuff on sale at ACE. hardware 1.00/gallon


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ItsyRV

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Posted: 12/14/20 10:08pm Link  |  Quote  |  Print  |  Notify Moderator

Monkeyman_and_Lady wrote:

I'm about to winterize my rig. I go to two of the gallons of antifreeze I've had since last last year. Unopened, but the pink colour is gone.

Is this stuff still okay to use?

If it's a Chemworld product they don't usually add the pink color to it. Just be aware it's a concentrate, so dilute to label specs before using in the system. Most people will add some food coloring just so they can see when it runs through the system and when flushed out.


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Blaster Man

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Posted: 12/17/20 01:28pm Link  |  Quote  |  Print  |  Notify Moderator

Color of coolant is irrelevant. There are too many variables....for gas engines, for diesel engines, standard, extended life, probably more, and they don't mix well.


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