Pueblo chieftain., 1921-10-02

to determine efficient fabrication with
out the needed cooperation of the oil
chemist and oil refinere.
| Now the problem was to be attack
ed from both the chemical and physi-
cal sides.
In the chemical laboratory new ideas
:, were originated; new processes OF re-
filming given a trial, and analytical ex-
animation of oils made to determine
their suitability.
tested In all types of motors under
conditions similar to those which
would be met in actual use. 1t was .
substitution of accurate scientific
knowledge for the old hit-and miss
method. AS can be expected. discov-
saved many dollars for the autoist-
One of the first problems tackled
was the effect OF heat on lubricants.
IT had been long recognized that heat
was the arch enemy of lubricants
With temperature in the engine rang
ling all the way from 200 to 1000. 1t was
evident that there was no oil which
would not break down under this In
tensive heat, and deposit some scdi-
ment. The problem was to devise an
| oil which would stand up best against
heat. About this time the Faulkner
Process OF refining oil was devised
which produced a lubricant which un-
der heat shows so per cent less sedi-
ment. The test by which the amount
of sediment is determined is simple and
Interesting.
After a motor Is run on tho test
stand for a few hours. a sample drawn
will show that the oil has changed
from its original yellow color TO a gray
ish blue. After running several days,
| 1t will be found that the oil has turned
entirely black and become Opaque. A
sample drained from the motor into a
long narrow bottle and allowed to
stand "a hours will show a black sedi-
ment at the bottom. The oil floating
above the sediment will be red in color
and equally serviceable as when fresh.
The volume of thtA sediment depends
on three factors: he temperature OF
the parts with whicA it came in con-
tact. the condition OF the motor. and
the purity and stability of the oil
fused.
II an ordinary oil of impure quality
il subjected to the same tests. II will
turn black in a few moments. After
running several days II win show
heavy black sediment several times
greater in volume than the superior
oil.
II the two bottles arc stood side by
side, the more staple oil will show
only a small amount of sediment at
the bottom. In the ordinary oil the
sediment will show five or six times
as much. The two bottles, one with
the shallow deposit of sediment and
lone with the heavy deposit. have. been
very effectively used by the manufac-
turers to show graphically the differ
ence between good and ordinary oil.
This wide variance in the amount Of
sediment is OF keen interest to the
motorist Friction wear and expenses
increase directly as the sediment in
creases. The old thought that "On is
OIL" is rapidly being supplanted by
| tho belief that the Sest oil is the
cheapest in the long run.
There is only one way for the motor
lat to be sure of getting thefullest ad-
vantage of the progress that has been
made in fabrication. He must insist
on gettin- oils which are made by
houses who are constantly doing re-
search work which results in a steady
bettermcnt of their product. 1t re-
iquires only little vigilance when
buying. but it results in greatly in
creased power and satisfaction.
/ Lubricants are giving infinitely more
satisfaction than formerly because OF
the scientific work which has been
done. The motorist who negiects to
specify an oil made by progressive
house is neglecting to prof. by ad-
Lee N n which can he his nj M ,oaf