Cylinder Oil 600 W What Is For, What Will It Do 1920
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GARGOYLE CYLINDER OIL 600 W
fore, possesses uniformity of quality not possible to attain
in blended products derived from a variety of crudes and
from different refining processes.
Physical Tests
The physical properties of a cylinder oil are no indication
of its lubricating valne. It is, therefore, impossible to draw
correct conclusions as to the lubricating value of a cylinder
oil from any known analysis of its physical properties. The
physical tests most frequently applied by chemists are:
specific gravity, cold test, flash point, viscosity, loss by
evaporation and the degree to which the oil is compounded.
None of these tests indicate the lubricating efficiency or
service value of an oil.
„ ... Specific gravity is the weight of a definite
quantity of oil compared with the weight
of the same quantity of water. The gravity
of a cylinder oil depends largely upon the crude from which
it is made, the temperature and conditions under which it
is distilled, and the nature and percentage of fixed oil with
which it may be compounded. The gravities of different
cylinder oils vary in such an inconsistent manner that it is
hopeless to try to draw from this test any conclusions as to
their service value.
Cold Test This test *s to determine the temperature at
which the oil congeals, i.e., ceases to flow.
The cold test of a cylinder oil is rarely, if ever, an important
qualification.
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