Hudson 1936 Six, Owner'S Manual

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After thoroughly flushing the cooling system, the addition of Hudson Rust
and Corrosion Inhibitor to the water will neutralize the action of any cleaning
compound which may not have drained out. It will also prevent corrosion of
the cast iron, aluminum and other metals in the cooling system. The practice
of using the Inhibitor in the cooling water is particularly advantageous for
engines equipped with aluminum cylinder heads.
Hudson Radiator Cleaner and Inhibitor can be obtained from any Autho-
rized Hudson and Terraplane Dealer.
Anti-Freeze
Before putting any anti-freeze in the cooling system, it should be thoroughly
cleaned and all hose connections and gaskets checked for leaks.
The types of anti-freeze recommended are: Alcohol, Glycerine and solu-
tions of Ethylene Glycol marketed under various trade names.
Solutions containing calcium salts or other ingredients which promote electro-
lytic action should be avoided. They will cause serious corrosion of aluminum
alloy as well as the solder joints of the radiator. Also avoid the use of solutions
containing glucose or honey, as they will tend to clog the system; and of
kerosene or fuel oil which, when hot, liberate inflammable vapors.
The following table gives the quantities of the recommended solutions re-,
quired for protection against freezing at various temperatures:
O W N E R ’ S M A N U A L 2 3
Temperture
Fahrenheit
Alcohol
Quarts
Radiator Glycerine
(C.P.A. or Equivalent)
Quarts
Ethylene Glycol
(Prestone or Equivalent)
Quarts
+20°
+10°
0°
-10º
-20°
-30°
2½
3¾
5
5¾
6½
8 5¾
7¼
9
10½
12
13—Full Strength
2½
3½
4½
5
5¾
6½