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How to Read the Chart 
T HE correct grades of Gargoyle 
Mdbiloils for tractor engine lubri¬ 
cation are specified in the Chart below. 
A means Gargoyle Mobiloil “A” r 
B means Gargoyle Mobiloil “B” 
BB means Gargoyle Mobiloil “BB’’ 
Arc means Gargoyle Mobiloil An tic 
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 recommenda¬ 
tions should be followed during the entire 
period when freezing temperatures 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. 
If your tractor is not listed in this 
partial chart, consult the Chart of Recom¬ 
mendations at your dealer’s, or send for 
booklet, “Correct Lubrication for Trac¬ 
tors,” which lists the Correct Grades for 
all Tractors. 
names of tractors 
Alli«-Chalme r* [General Purpo*e) 
'* " All Other Model* 
All Work. 
Appleton .. 
Auliman-Tavlor (18-36) 
*' ** (22-45) -- 
'• M (15-30) (Wauketha Eng.) 
" *' All Other Model* 
Averv (5-10). 
" Motor Cultivator & Planter 
" All Other Model*. 
ll.tu Steel Mule. 
Bran-Track-Pull.... 
Big Bull. 
Buckeye (Findlay, Ohio). 
l -*e (9-18). . 
- .00-18). 
** "(10-20).- . 
” (12-25 U 20-40i ... 
115-22). 
** All Other Model*. 
Chirac. .. 
Cleveland/. . 
( Pitman ... 
Common Senst.. 
COD.. 
Craig ..... . .. 
C reeping Gnp.'.s. 
t B. (9-16). . 
*• (Reeve*). 
** All Other Model* .... 
Hour City (20-35) ... 
'* , All Other Model* . 
^ordson .. 
C.a* Pull .. 
Grain Belt . 
Happy Fanner . 
liart Part. 
Heider .. 
Hetsion.... ....... 
Molli* . 
Holt Caterpillar (Model 18) . 
- _ - (Model 45) . 
*• ~ *' All Other Model* 
Huber?;......*. 
Illinois. 
Indiana. 
K. C. Prairie Dog . 
I.a Crosse ... 
Liberty . 
l.ightfoot . . 
Minneapolis.. 
Mogul (8-16). . 
^ - All Other Model*_ 
Moline Universal..... 
Monarch. . 
National .. 
Ncvertlip (20-12). . 
“ (30-18,10-6) . 
" All Other Model* .. 
tjaw Age. 
Nil*on . 
Oil Pull (14-28. 10-20) . .. . 
. ” ** (12-20.16-30). 
** " (20-40). 
" '* AH Other Modch .. . 
Barrett. 
Pioneer. 
Royer. 
Rumely (8-16).. .... 
" (12-24).. 
Russell (Giant). 
" All Other Model* .... 
Sandusky.... 
Square Turn (15-30). 
“ * ( 18 - 35 ). 
To-Ro. 
Townsend. 
Tmndaar.. 
Turner Simplicity... 
1 win City 'Model 15). 
** “ (Model 16). 
" ** (Model 12-20).... 
" ** (Model 20-35). . .. 
** *• All Other Model* . 
Vdit... 
Wall i*.. 
“ Cub. 
*' " (Junior)...*. 
Waterloo Boy. ... 
Wheat.. 
Whiracy..... 
Wi*comin.... 
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Farming Costs and Farm Profits 
Some enlightening figures on both subjects 
R ESULTS of an investigation made 
by the Department of Agriculture 
show that in the last seven years the 
average return on farm investment in¬ 
creased from 4 r c to 7%. I he Depart¬ 
ment found, however, that in spite of the 
comparatively higher prices paid for farm 
products, few farmers made more than 
$500 cash a year, over and above the 
things the farm furnished toward the 
© 
family living. 
These figures are eloquent. 
The modern farmer who is fully alive 
to the possibilities of his investment will 
see a close connection between these 
figures and the reduction of operating 
expense. On farm machinery alone it is 
often possible to effect 
a saving of astonishing 
size in the course of a 
single year. 
Prominent engineers 
state that over 50% ofall 
engine repairs on auto¬ 
mobiles, trucks and tractors are due to 
incorrect lubrication. 
In hundreds of tests Gargoyle Mobil¬ 
oils, when used as specified in our Chart 
of Recommendations, have shown sav¬ 
ings in oil ranging from 50% to 70%, and 
fuel economies of 17% to 25%. 
Lubrication, which seems a small item, 
is the most important factor in farm 
machinery operating costs—particularly 
tractors, trucks and automobiles. Scien¬ 
tific lubrication means longer life, fewer 
repairs, and slower depreciation. 
The Vacuum Oil Company is known 
rhe world over as the leader in the 
science of lubrication. Gargoyle Mobil¬ 
oils when used as specified in our 
Chart of Recommen¬ 
dations (shown in part 
on this page) enable 
you to (jet utmost effi¬ 
ciency from your trac¬ 
tor, truck and automo¬ 
bile. 
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. 
DOMESTIC 
BRANCHES: 
New York 
Boston 
Philadelphia 
Pittsburgh 
Detroit 
Chicago 
Minneapolis 
Indianapolis 
Kansas City, Kan. 
Des Moines 
VACUUM OIL COMPANY 
Specialists in the manufacture of 
high-grade lubricants. O' tamable 
everywhere in the world. 
NEW YORK. US.A. 
M 
