Will -50F Antifreeze Freeze Solid In Freezing Temperatures When Winterizing RV?
Published 10/20/2025
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Question:
Will the –50°F PG36ZR antifreeze freeze solid if temps actually hit zero?
asked by: Jim
0
Expert Reply:
Not solid, Jim, but the # PG36ZR Antifreeze will start to slush around freezing temps. The “–50°F” rating refers to burst protection, meaning your pipes won’t rupture even if the fluid thickens. For extended subzero weather, use the # PG96ZR rated to –100°F; it stays flowable far longer.
How cold does it typically get where you store your RV? Fyi, I've attached a help article that covers winterizing an RV.
expert reply by:
Andrew N
0
Product Page this Question was Asked From
Prime Guard Glycerin Free RV & Marine Antifreeze -50°F Burst Protection - 1 Gal - 6 Jugs
- RV Fresh Water
- Winterize
- Antifreeze
- Prime Guard
more information >
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