How to winter check antifreeze coolant in a car truck tractor motor vehicle

I quick diy video of how i winter check my cars for antifreeze.
Took a sample from the car using an pump from a household cleaner bottle.
Put the sample in my freezer overnight at minus 20 to minus 21 Celsius, next day i removed the sample it had 95% frozen, with gave me the answer that my car needed antifreeze if there was a deep heavy minus 20 Celsius frost.
Now im sure most did notice in the video, it didnt take long till it returned to its liquid state, this show that there was some antifreeze in the mixture but not enough.
I will renew antifreeze in this car " for peace of mind" if do get a bad winter.

[@JoeRafferty0]

Great video, as always!

[@thenotorious2312]

Them sample bottles from the doctor come in handy alright. Ha