Caprinus R Oil 40, Shell's medium viscosity index (MVI) lubricant for medium-speed diesel engines, is now an API CD quality oil for marine diesel engines.

This means Caprinus R Oil 40 meets the performance requirements of Cummins and Caterpillar marine diesels—both frequently used as auxiliary engines aboard shallow-draft vessels.

One-oil purchasing convenience is now possible, thanks to the API CD designation, states a Shell spokesman. It is also believed that chances of mislubrication will be reduced because of the broader field of application of Caprinus R Oil 40.

Caprinus R Oil 40 is a high alkalinity oil, approved as a Superior Class II oil by General Electric Company and recognized as "Satisfactory for General Use" by EMD (Electro-Motive Division of General Motors Corporation).

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