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Old 12-31-2017, 04:02 PM   #1
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Default RV Anti-Freeze

I am sure this question is only for us northerners, but does anyone know how far below zero the pink RV antifreeze is rated? I had an extra jug sitting on the floor of my garage and noticed it was pretty well frozen and slushy. It has been about -30 on some nights. I keep my RT in an unheated garage with no electric. Has anyone run into a problem and how did you deal with it....other than move.
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Old 12-31-2017, 05:23 PM   #2
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My experience says RV antifreeze (the pink stuff) turns to slush below 32F. Put it in your freezer and see. If it is still slush at -30 it is working.

The purpose of RV antifreeze is to keep the pipes from splitting, not to allow fluid to flow. It does not function like radiator antifreeze or even windshield washer antifreeze.
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Old 12-31-2017, 05:33 PM   #3
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I have also seen some other RV antifreeze around here (Minnesota) that is allegedly good for colder, maybe -50*F, but haven't seen if anyone tested the "slush point".
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Old 12-31-2017, 08:15 PM   #4
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.

Water has the highest volume at freezing-point.
After that, as the temperature drops further, the volume shrinks again.

Slush is ok, it is harmless.
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Old 01-01-2018, 12:06 AM   #5
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Default RV Anti-freeze

Thanks for the thoughts....I am going with the idea that it won't freeze hard enough to do any damage. Additionally I am not sure what I could do to rectify it in this weather!!!l
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Old 01-12-2018, 12:54 AM   #6
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Quote:
Originally Posted by booster View Post
I have also seen some other RV antifreeze around here (Minnesota) that is allegedly good for colder, maybe -50*F, but haven't seen if anyone tested the "slush point".
In Southern Ontario the RV is marked for -50F as well. I have seen my turn to slush on more than one occasion, but has never been an issue in six years.
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