Shell Carnea-41/Oil Machinery/General Purpose Machinery Oil To Is:493-81 Part-I, Reaffirmed 2004 Gr. Vg-100.(With Rust Prive Characteristics Test, As Per Is: 1448-P-96, Method A). Sup Plier/Brand Name Allowed:- Iocl/Servoline -100 Hpcl/Yantrol-100 Bpcl/Bharat Univol-100 Or Bis Approved Make Only