Big Owl Heavy Duty Diesel Engine Oils are high performance, heavy duty diesel engine oils with a high TBN for extreme engine protection in engines where the fuel sulfur content is as high as 0.5%. Engineered with carefully chosen additives & highly refined based oil, Big Owl HDEO CI4 Plus Oils are sure to give more confidence through quality & performance reliability. Recommended where trucks, buses, and commercial vehicles recommend 15W40 CI-4 and CI-4 Plus.
Big Owl Heavy Duty Diesel Engine Oils also meets or exceeds the service requirements of Mack EO-M Plus, EO-N, Premium Plus, ACEA E3, E5, Navistar, Global DHD-1, Volvo VDS-2, Cummins CES , 20071, 20076, 20078, DB 228.3, and MB 288.3 and CAT ECF-1.