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whiteeye42's avatar
whiteeye42
Explorer
Aug 27, 2014

RV anti-freeze

I know this is a little early in some part of the country but here in wyoming it is getting cold at night and we won't be using the trailer the rest of the year do to work and such so i was going to put anti-freeze in my lines now and be done with it and i was wondering if you can mix different brands of anti-freeze thanks in advance
  • We don't put RV antifreeze into the fresh water system. The lines are blown out with air and all faucets, and drains are left open. RV Anti freeze is only used in the sink/shower p-traps, and toilet bowl...
  • Think maybe I'll stick to alcohol...relatively nontoxic ??? No thanks.

    Water-propylene glycol mixtures dyed pink to indicate the mixture is relatively nontoxic are sold under the name of RV or marine antifreeze. Propylene glycol is frequently used as a substitute for ethylene glycol in low toxicity, environmentally friendly automotive antifreeze (such as Sierra, Prestone Low Tox, and Texaco PG). It is also used to winterize the plumbing systems in vacant structures.
  • I use Prestone RV Antifreeze as it is propylene glycol based, whereas some of the other brands are ethyl alcohol based.

    Don't know what affect mixing propylene glycol based type with ethyl alcohol based type would have. Maybe those posting above know.
  • Yes, you can mix RV antifreezes. You want to use this kind (any brand):



    AND NOT ANYTHING LIKE THIS:

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