Page 21: of Maritime Reporter Magazine (January 1978)

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 *This is a trademark for the product indicated above and is used as such in this writing. 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 OO (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.

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.

Shell for answers