Page 4th Cover: of Maritime Reporter Magazine (January 15, 1973)

She's just completed 20,699 hours without an oil change

More than three years ago, this Mississippi towboat was switched to Mobilgard 445 oil.

Now 20,699 hours later, the boat's diesel is still in top condition—and the oil has never been changed.

The crankcase, for example, is bright and clean.There's absolutely no port blockage—no sludge or carbon deposits on the top-deck rocker arm assembly. And the rings are free.

One reason for this remarkable achieve- ment is Mobilgard 445's ability to sustain a high alkalinity almost indefinitely. This not only eliminates the most common reason for d rai ni ng, it also red uces corrosion- erosion wear by as much as 30% [which is another way of saying the engine lasts 30% longer).

Then there's Mobilgard 445's out- standing dispersant/detergent characteristics—the engine's parts are continuously scrubbed clean and the contaminants are held in suspension, leav- ing less work for the filter, thus greatly extending filter life. That's

Mobilgard 445. The greatest lifesaver you can buy, for your engines—and your filters. Mobil Oil Corporation, Marine

Sales Dept., 26 Broadway, New York, NY10004 M©bil

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