Because of the freezing weather here in Houston, I had a few questions those up north may help with.
Antifreeze here is mostly anti-boil over for automobiles in the hot summer. It also has a secondary duty for the few days a year it freezes. Remember, here, it might be a light freeze overnight 28-32F then come up to 50 during the day.
Rarely do we get continuous freezing for 3-4 days or dip down into the teens.
OK, I tested my antifreeze with a tester and it says it was good down to 0F.
But it really is a home made chemical solution? What kind of variance do you really have?
What do you do? Not think about it? 100% antifreeze? Something in the middle?
When I was young one of my vehicles froze and pushed several of the freeze plugs out of the engine. Yea, I know that is what they are made for but it was really a big hit at that point in my life. (Money, no vehicle, etc. ) Now, I am paranoid.
“The price of freedom is the willingness to do sudden battle anywhere, any time and with utter recklessness.”
― Robert A. Heinlein, The Puppet Masters