As you know, most car glass cleaning fluids are made from isopropyl alcohol. Methyl alcohol is prohibited by law from being used for these purposes, and ethyl alcohol is too expensive.
The onset of the freezing point of a liquid depends on the proportion of alcohol in it. As the alcohol fraction increases, the freezing point of a given alcohol-containing substance decreases. Usually, careless sellers dilute the antifreeze with water and thereby reduce the proportion of alcohol in it. At the same time, its freezing temperature increases.
What will you need?
Therefore, before pouring glass washer fluid into the reservoir, you should check it for alcohol content using a simple and inexpensive device called alcohol meter. It can be purchased at almost any hardware store.
Quick check of the anti-freeze “per degree”
To do this, pour the liquid to be tested into a narrow but fairly high container and lower it into it. alcohol meter. The scale of this device is graduated in percentages.So, if the float has sunk to the number “30,” this indicates that this aqueous solution contains 30% ethyl alcohol.
This antifreeze will withstand frosts down to -30 degrees Celsius.
But since anti-freeze liquid for car glass washer is made mainly from isopropyl alcohol, to ensure its performance down to -30 degrees Celsius, the proportion of such alcohol should reach up to 65%.
