Page 4th Cover: of Maritime Reporter Magazine (February 15, 1971)

When you switch to Mobilgard 445, it's a lot longer between changes.

Mobilgard® 445 is making everybody overhauls. And overhaul intervals themselves involved with marine engines happy—except can be extended by months, maybe filter manufacturers. Specifically Finally, Mobilgard 445 doesn't need to be designed for medium-speed diesels in tow- drained between overhauls—and tests boat service, Mobilgard 445 has stretched show that it keeps the engine cleaner than oil filter life to the maximum allowed by current competitive oils that are drained regularly, filter materials. And as you know from your own experience,

And that's not all. In repeated tests, cleaner engines last longer—a lot longer.

Mobilgard 445 has completely eliminated the Mobil Oil Corporation, 150 E. 42nd Street, need to clean oil coolers between major New York, N.Y. 10017. m m • Mobil

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