Original World War 2 business industry trade magazine vintage ad for SOCONY VACUUM OIL COMPANY. We Announce Flying Horsepower. For America's Fighting Planes, amazing new gasoline will permit as much as 35 percent higher power output from aircraft engines, 25 percent heavier bomb loads or 15 percent wider cruising range. Eugene Houndry pioneered the development of the Houdry catalytic refining process. From this beginning has stemmed the only method by which 100 Octane aviation gasoline can be produced in the vast quantities needed by the United Nations air fleets. Unique 1943 old petroleum products refining and process magazine advertisement. WW2 wartime era propaganda advertisement.