Prevention of Freezing in the Cooling System
With the approach of zero weather the question of something to prevent the freezing of the cooling system is of great importance. It is not so much a question of getting some liquid that will not freeze as of getting one that will not injure certain parts of the cooling system, says William H. Stewart, Jr., in Motor. There are many proprietary compounds on the market, some of which have been shown to be excellent for making anti-freeze solution. Again there arc made-up solutions which are very good. In view of this it hardly pays to employ expensive products for the purpose of making one’s own antifreeze. One thing that must be watched is found in the fact that some of the oroducts are simply chemical salts, cheap in price, but camouflaged to appear like an expensive product. Care should be exercised in this case to use an antifreeze compound of recognized standing, under a well-known brand of manufacture. Alcohol has always proved a satisfactory antifreeze, though its tendency to evaporate has been against it, and this year its price will be almost prohibitive. Calcium chloride and salts in general lower the freezing point of the water, but it is claimed that their action on the radiator tends to disintegrate the solder and produce leaks.