RV Anti-Freeze Freezes
Just discovered that undiluted Supertech RV antifreeze, rated for -50F and sold at Wal-Mart, freezes solid at MINUS 2F!! I have 6 gallons of undiluted SuperTech in my 2010 5th wheel currently. Went ou...
Forum Discussion
Mocoondo wrote:
Yes it does freeze. :)
I've been telling people this for years. And yes, it does expand too. I've seen far too many water systems damaged by the "pink stuff" that I will never use it. The only anti-freeze you have half a chance with is the good marine anti-freeze that has burst protection down to very low temps.
Don't know where you got your info.
I have copper pipes at the cottage. Been using the pink stuff for close to 30 yrs, never a problem. It often goes down to -35 for days, it's -20 right now.
I drain the system then fill it with antifreeze and leave it all winter.
Copper does not expand and will crack easily
