Something to think about.....
There are thousands of different elements and solutions and compounds here on the planet Earth..
Question:How many of them expand when they freeze?
Answer: ONE,, yes, just ONE,, Water
PINK stuff, for example (RV antifreeze) Freezes very easily,, it just does not expand, thus it does not blow tanks up.
Truck drivers have to have DEF tanks, and often find themselves far colder than -11 out.. I mean I personally have walked around in -40 (but that was before DEF), I would not worry about it.
Home is where I park it!