The Washington times., 1916-12-30
EXPERT TELLS HOW
TO STOP FREEZING
Some Substances Now Used
May Work Havoc With
Mechanism of Car.
ny MAX HAGELsTINE.
studebsker Service Expert.

II was only a few weeks ago that
I publicly urged all motorists 20 pre-
pare their cars for the advent OF
zero weather. and gave them spcci'
fc directions for the preparation OF
an antLfreeze mixture that would
guard against the freezing OF the
water In the cooling system OF their
cars.
While u 10 true that some motorists
made adequate preparations for the
cold weather. Il II also true that .
great many owners woke up the
other morning and found that Jack
Frost had got In his work: that the
radiator was damaged and the cylin.
ders cracked. And TO my way OF think.
ing. cracked cylinders and split radi'
ator tubes cost q lot more than alco'
hoI or Elycerine.
II Is not always the man who has
his firrt machine that II caught nap
ping. Experienced motorists are not
infaliible. and IL II that class OF own.
ers who never cross q bridge until
they come Co II that bring business
to the concerns who repair radiators
and those makers who supply spare
parts.
wre.s Aati.freese Mixture.
while the most easily prepared so
luton IL. perhaps. tho calcium chlor'
ide. u IL absolutely the wrong anti
freeze mixture TO use. A number OF
cars have recently been brought Into
our service station for repairs which.
upon investigation, showed that cal
cium chloride had apparently been
used In the radiator. Unless one can
secure the chemically pure form. cal.
cium chloride IL q mighty dangerous
solution TO use.
The commercial calcium chloride.
commonly sold for an anti freeze
mixture. IL highly injurious because
OF the action on the components Of
the cooling system. Such alkaline
solutions are productive OF an cleo
tricai action wherever two dissimiiar
metals are utilized. such as the brass
tubing OF n radiator and the solder
used at the joints: the iron w.ter
Jackets. and the brass or copper
pAtes. etc. And. too. ] strongly ,ad-
wise against the use OF all soluble
salts. because OF their harmful action
on the metal.
In addition 90 damaging the radi.
ator. the use OF calcium chloride may
work havoc with the cylinder. the
pump. and the inlet and outlet water
pipes. Tho owner usually has 60 buy
a new radiator before he can put his
car into service again, besides hAv-
ing TO stand the cost for the labor OF
replacing with the new. And the ex'
pense does not always end with this
work
Summary shows Preferences
A summary OF the opinions OF motor
car manufacturers as TO the value OF
various anti.freeEe solutions shows q
decided preference for denatured al
cohol and glycerine. The proportions
for the use OF the alcohol depend upon
tho temperature, II viii require q D
per cent solution OF alcohol 20 pre-
vent freezing at 20 degrees, and a %
per cent solution will take care OF the
water system down to zero. As low
as 10 below the solution should be
80 per cent. and II The mercury hap
pens 20 drop 20 10 degrees below the
percentage will be IS per cent OF alco-
hoi. whereas 10 more degrees below
will require a 20 per cent solution.
Alcohol has one undesirable featur-,
however. and that 10 It's eyaporating
prociivities, But IL you will take the
trouble to add a small amount OF
giycerine TO the alcohol as you pre-
pare Il for the radiator, you will
greatly reduce the evaporation rate.
Regarding the glycerine, the un'
bleached variety which may be pro-
cured at practically any drug store
Is cheapest and best.