ENGINE Oil CONFIRMING TO GRADE 15W40 WITH API-CI4 PLUS SPECIFICATION (To be Supply 210L capacity non-returnable mild steel drum). MAKE-HPCL, IOCL, BHARAT SHELL, BALMER LAWRIE, BPCL, GULF OIL CORPORATION, VOLVO LINE ONLY. MATERIALS TO BE PROCURED FROM OEM OR ITS AUTHORIZED DEALERS ONLY. DEALERSHIP CERTIFICATE TO BE SUBMITTED. [NOTE: As per Recommendation of Committee on Policy on Procurement of Spares of Track Machines Vide Authority: Railway Board Letter No.2016/Track/III/TK/4 dated 29.06.20