Page 25: of Maritime Reporter Magazine (December 1977)

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