f.llll'l. 
Chart of Recommendations 
for TRACTORS 
(Abbreviated Edition) 
How to Read the Chart 
The Farmer’s Yearly Balance Sheet 
National Interest demands that it show profits 
I N 1830 ten hours of labor produced three 
bushels of grain. Today the same labor pro¬ 
duces 60 bushels. The modern farmer more 
successfully combats insect blights, live stock dis¬ 
eases, soil conditions and in many cases even 
the elements. 
’I his advance has been made at tremendous 
cost through research by the Department of Agri¬ 
culture, Universities and other agencies sup¬ 
ported by public funds because successful agri¬ 
culture is vital to National prosperity. Only 
success can keep the best manhood on the farms. 
In spite of improved methods, however, many 
farmers make only a “living” from their work. 
In many cases criminal waste is the cause. Th is 
waste is glaring in the case of farm machinery. 
Millions of dollars are lost yearly by farmers 
because machinery is not protected from the ele¬ 
ments, and more important still, because it is 
inefficiently operated. 
Prominent engineers agree that over 50% of 
all engine troubles on trac¬ 
tors, trucks and automobiles 
are due to incorrect lubri¬ 
cation. Incorrect lubrica¬ 
tion not only means repair 
expense, but excessive oil 
and fuel consumption, 
frequent shutdowns and quick depreciation. 
1 he Vacuum Oil Company has for years been 
recognized the world over as an authority on 
scientific lubrication. Gargoyle Mobiloils when 
used as specified in our Chart of Recommenda¬ 
tions, have in hundreds of public and private tests 
shown a saving of oil from 50 to 70% and a fuel 
economy from 17 to 25%. Besides lower opera¬ 
ting costs Gargoyle Mobiloils enable you to get 
engine results, which mean more power, less 
trouble, less depreciation. 
Farmers fully alive to this situation have in¬ 
creased their profits to an appreciable extent by 
th e economies effected with scientific lubrication. 
i he Chart of Recommendations (shown in 
part, op this page) specify exactly u'hat grade of 
Gargoyle Mobiloils will give you best engine 
results from your auto, truck and tractor. 
* 1 * 
Gargoyle Mobiloils are put up in 1-and 5-gallon 
sealed cans, in 15-, 30- and 
55-gallon steel drums, and in 
wood half-bar relsandbarrels. 
Write for “Correct Lubri¬ 
cation,” a booklet containing 
complete automobile and tractor 
charts and other valuable data. 
Mobiloils 
A grade for each type of motor 
In buying Gargoyle Mobiloils from your dealer, it is safest to purchase 
in original packages. Look for the red Gargoyle on the container. 
VACUUM OIL COMPANY, New York, U. S. A. 
Specialists in the manufacture of high-grade lubricants for every 
class oj machinery. Obtainable everywhere in the world. 
DOMESTIC New York Philadelphia Detroit Minneapolis Kansas City, Kan. 
BRANCHES: Boston Pittsburgh Chicago Indi anapolis Des Moines 
T HE correct grades of Gargoyle Mobiloils 
for tractor engine lubrication are specified 
in the Chart below: 
A means Gargoyle Mobiloil “A” 
B means Gargoyle Mobiloil “B” 
B B means Gargoyle Mobiloil “B B” 
Arc means Gargoyle Mobiloil Arctic 
These recommendations cover all 
models of tractors unless otherwise 
specified. 
Where different grades of Gargoyle Mobiloils 
are recommended for summer and winter use, 
the winter recommendations should be followed 
during the entire period when freezing temper¬ 
atures may be experienced. 
This Chart is compiled by the Vacuum Oil 
Company’s Board of Automotive Engineers, and 
constitutes a scientific guide to Correct Tractor 
Lubrication. 
consult the Chart of Recommendations at your 
dealer’s, or send for booklet, “Correct Lubrica¬ 
tion for Tractors,” which lists the Correct 
Grades for all Tractors. 
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