*Ta t RURAL NEW.YORKER 
561 
TRACTOR 
ENGINE 
^ mi ^ 
More Work per Gallon 
'Tractors generally work at practically full load—with the throttle wide open. This pro¬ 
duces an unusually high operating heat. For correct lubrication and efficient and eco¬ 
nomical operation tractors accordingly require an oil especially suited to meet unusually 
severe service conditions. 
So-CO-ny 
Tractor Engine Oil 
is made to stand the extra high operating heat of tractor engines. It is the oil that leading 
tractor manufacturers recommend. It insures correct lubrication, full compression and 
minimum wear on the vital parts of your engine. Assures maximum power with low 
operation and upkeep expense. Gives more tractor work per gallon of lubricating oil and 
more power per gallon of fuel. 
Why Piston Pin Lubrication is Important. Piston pins receive the full force of every 
explosion. Unless their bearings are adequately cushioned with oil of correct body and 
lubricating qualities they soon wear loose and cause “knocks” and racking vibration that 
soon destroy connecting rod and crankshaft bearings. Correct lubrication with So-CO-ny 
Gas Engine Tractor Oil is a safeguard against this danger. 
For transmission gears and other parts requiring a heavier oil use Polarine Gear Oil — 
keeps gears operating quietly with least possible wear. 
Fill the cups with Polarine Transmission Cup Grease. It is acid-free and all lubricant. 
For reliable and economical tractor operation buy your oils, greases and fuel where you see 
the So-CO-ny Sign. 
■■Fei'g/T>| J STANDARD OIL CO. OF NEW YORK 
I .. l. r-T-1 1 ■ r: M ... I Principal Otiicc* 
I New York Albany 
Buffalo 
Boston 
IflPfl 
SOCONY 
TRACTOR 
OIL POR 
PISTON 
PINS 
