Tulsa daily world. [volume] (Tulsa, Indian Territory [Okla.]) 1905-1919, 1917-12-09
ENGINE CHANGES
FOR POOR FUELS
Increasing Demand of Gasoline
Makes New Carburetor
Systems Necessary.
NAY USE L0WER-GRADE OIL
Larger Proportion to Be Avail.
able Without Any Decrease e
in Efficiency.

Radical changes in gasoline engine
construction must be made in the rear
culture If the war and commercial
needs of the country depending upon
gasoline for fuel, are to be maintained
ut their highest efficiency, w. p.
Deppe, mechanical engineer told
the members of the metropolitan sec
tion of the Society of Automotive En-
gineers at their meeting in New York
recently, says the New York Times.
The problem of obtaining "a reason
able amount of efficiency with the
grade of gasoline now in use has al
ready become sufficiently important
to arouse the attention of the leading
automobile engineers and various
methods of adapting the carpuretion
system to give maximum results with
The low grade fuels are being her
aided with more or less success
Mr.. Deppe made no attempt 10 dis
guise the fact that the motorist will
probably never again see the lay of
the high grade gasoline which was so
readily obtainable before the outbreak
of the war. At that time this fuel for
the internal combustion engine repre-
sented barely 5 per cent OF the entire
crude oil production. The tremendous
increase of automobile use in America
supplemented in recent years with its
demand for war uses has forced the
oil refiners to use about IS per cent Of
the total production for commercial
fuel. Naturally such large percent
age means poorer quality. This is the
grade of gasoline that the automobile
owner is now using.
This Is a condition that must be
recognized and met, said Mr.. Deppe,
by the automobile manufacturing in
dustry. He did rot stop there, but went
so far as to affirm that by improved
methods of carburetion design 1t
would be possible to use as CONNER
cial fuel from 40 to so per cent of the
crude oil production.
Mr. Deppe based his main argument
upon the necessity OF obtaining IN ad-
ditional supply of gasoline fuel, not so
much by conserving its use under
existing methods. but by finding
means to use a much larger proror.
tion than Is now available without
any decrease sin efficiency, indeed
he showed that 1t would be possible
to obtain greater efficiency with the
lower-grade fuels
:, IL Miles Per Gallon.
"All cars now average about twelve
miles per gallon of gasoline" said Mr..
Deppe. They can average from
eighteen to twenty miles by better car
buretion, using the low grade fuels
representing dDOul DUt-Hdll EdSJllIle
and one-half kerosene. Trucks now
average from four to five miles per
gallon. They can be made to average
from six to eight miles"
The crude oil production OF the
United States is now about $40, ,0e1, 900
barrels. The present worlds produc-
tion is something less than 100000 900
barrels. The demands upon America
by our allies, it was stated, indicate
Oh N 4. l.,
are needed in excess of the annual
production, and this will be obtained
by breaking in on the storage supply.
OF the 100000 barrels production
only about 100000 to $4,000, 900
barrels, representing IS per cent car.
be used as gasoline for motor engines
"Over 5000, 900 motor cars, Trucks
etc. of which over 4,250,000 are in use
in this country, are the foundation or
which is now built the transportation
systems of the world" said Mr.. Deppe.
Gasoline engines furnish the prime
motive power for two-thirds of all the
mechanical power now serving the
civilized world. In addition, there VIII
be supplied from this country about
thirty thousand airplanes, each or
two hundred horse power or over and
using twenty gallons of high grade
gasoline per hour If they deliver any
'iHfS llht tItiT power. Al all
average Of five hours service per DAY,
here is an additional demand next
year Of seventy thousand barrels OF
good gasoline per dav. to say NOTHING I
OF over fifty thousand military trucks
and thousands Of commercial vehicles
I'VE can no more cut down the u.s.,
Of gasoline engine vehicles than we
could cut down the use of steam and
electric car lines. A way must be
found to make more commercial gaso
lines out Of crude oils and also secure
more useful work out Of every gallon
of oil now furnished, or we are coins
to get some unpleasant .jolts In the
near future"
New Engine Designs Necessary.
Divested of excessive technlcalities.
Mr.. Deppe's explanation of the neces-
sary engine design 70" the lower-gradc
fuels was substantially as follows:
The gas engine world using oils re.
fined In high temperatures in tho oil