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TEXACO M. V. Kolsnaren. Transatlantic S.S. Co. U R S A This motor vessel has been using Texaco URSA oil for the lubrication of its Diesel engine cylinders, auxiliaries and air com- pressors, ever since May 17th, 1923, O | f for Diesel Engines Burns Cleanly! It cannot form troublesome deposits of hard carbon. _ It is true, of course, that there is no oil—whether for Diesel Engines or any other prime mover—that will not deposit some carbon. BAut—and this is important—there is a marked difference in the nature and quantity of carbon deposited by different makes of Diesel Engine lubricants. A trial of Texaco URSA Oil for example, will convince you that it leaves a surprisingly small amount of carbon. And the little there is, is of a soft fluffy nature. This is due largely to the entire absence of paraffin or cylinder stock, and to the scrupulous care in our process of refining which removes all tarry or gummy residues that might form hard, wear producing carbon. But that is only one of the reasons why Texaco URSA Oil is so especially suited for the lubrication of Diesel engines. Here are others equally important— 1—It lubricates thoroughly. 5—It is of proper viscosity to meet bearing pressures. 2—It does not form gummy deposits. 6—It maintains effective cylinder compression, thus assuring easy starting and the delivery of full 3—It goes through the separators powverent hnally: easily and is readily cleaned and reclaimed. 7—It can be depended upon for uni- formity. Because no matter what 4—As it has an exceedingly lower port you buy it at—Texaco URSA pour test, it can be relied upon Oil is uniformly the same pure, not to clog piping at low tempera- clean, correct-bodied, dependable tures. oil for Diesel engine lubrication. We invite your inquiry and extend the cooperation of our Engineering Department. STOCKS KEPT AT PORTS THROUGHOUT THE WORLD. THE TEXAS COMPANY Texaco Petroleum Products Dept. V4, 17 Battery Place, New York City Offices in Principal Cities MARINE REview—April, 1927