SOCONY Polarine For Motor Lubrication Socony Polarine Oil is the direct road to lubrication satisfaction. It does not break up and run thin when the engine heats, but reduces friction to a minimum. It burns up clean and goes out with the exhaust, leaving the least possible carbon. Socony Polarine is also made in a Heavy and Extra Heavy body, for use where heavier oils are required. For transmissions and dif- f-erentials, Socony Polarine Gear Oil and Socony Polar- ine Gear Compound are best. Socony Tractor Oil has been especially devel- op-ed and is recommended for use on all types, makes and sizes of tractors.