Good for cleaning the windshield alone, it creates a relative foam and smells like alcohol. Based on relative information from the internet.

Temperature -4oC -9oC -18oC
Antifreeze 25% 50% 100%
Water 75% 50% 0%

According to the table, in order to have -18 resistance, you need to fill the car's container with pure cleaner, about 3 liters (12 bottles of 250 ml) at a time....
To be at "normal" -4, for every liter, 250 ml should be cleaner, so for a 3-liter container you need 3 bottles at a time...

It is easily understandable that one bottle of 250 ml in a 3-liter container will not do anything as an antifreeze, only as a mild cleaner...

Looking at the characteristics of the corresponding original Ford, I see that in a ratio of 1 liter / 2 liters of water, it reaches -11, so taking into account the multiplied price of the original and the fact that the workshop is unlikely to put one liter, I realize how much of a fool I have been all these years thinking that the original, although more expensive, does the job with such a large dilution...

Maybe in the end, adding a little alcohol as some suggest is the most honest solution...