Tenders for Supply of Lubricating Oil Grade Sae 15W40 Api Ch4 For Demu Engines To Rdso Approve D Brands: 1Servo Pride Xl 15W-40 Ch4 Of Indian Oil Corporation Ltd. 2 Hp Dieselino 15 W-40 Ch4 Of M/S. Hindustan Petroleum Corporation Ltd. 3 Mak-Ch4 15W-40 Of Bharat P Etroleum Corporation.Ltd. Specn: Grade Sae 15W40 Api Ch4 Warranty Period: 30 Months After The Date Of Delivery