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Shell's Caprinus R Oil guards towboat EMD's against corrosive wear of rings and liners. The switch is on! Here's why over 40 towboats are now using Shell's high-alkalinity Caprinus R Oil 40. We were proud to introduce Cap- rinus® T Oil a few years ago and delighted with its performance on the waterways. Caprinus T is a hard act to follow. But Caprinus * R Oil 40 is a significant step ahead. Towboat operators agree and are now using this premium lubricant in over 40 EMD- powered motor vessels. Caprinus R Oil 40 is higher in initial alkalinity than Caprinus * T Oil (10.2 TBN-E compared to 7.5) and retains effective alkalin- ity in extended high-stress ser- vice. That means Caprinus R Oil can continue to neutralize combus- tion acids and guard against cor- rosive wear of rings and liners over long periods. It helps pre- vent corrosive wear caused by high-sulfur fuels. Maximum filter service life The dispersant additive system in Caprinus R Oil helps keep insolu- bles in suspension to promote engine cleanliness. Results: In some installations it has been possible to extend filter service life to the limit of filter element durability—an important main- tenance saving. And what engineer wouldn't like the long oil service life of Caprinus R Oil! It offers high oxi- dation stability, high detergency to meet the needs of the latest- design diesels with up to 250 hp per cylinder. Fights thickening and deterioration over the long haul, too. Caprinus R Oil has all the properties to do the job and keep at it! Workhorse Tornus® Oil will still be available For many years, Shell's Tornus* Oil has worked its way in and ac- ross ports, harbors and the inland waterways of the U.S., deliver- ing good performance in high- horsepower diesels. Its alkalinity level is considerably lower than that of Caprinus R Oil (TBN 5.7 compared to 10.2). But it does provide good wear protection, helps keep engines clean and gives good oil and oil filter life in moderate service. *This is a trademark for the product indicated above and is used as such in this writing. Shell will continue to offer Tor- nus Oil but encourages a change to Caprinus R Oil 40 to meet the demanding requirements of mod- ern engines and high-sulfur fuels. Send for full details — we'll be glad to send you our technical bul- letin on Caprinus R Oil — its properties and applications in marine power plants. Just write: Shell Oil Company, Manager, Commercial Communications, One Shell Plaza, Houston, Texas 77002. Come to Shell for answers
