Engine Oil, Series Delvac, Container Size 1 gal, Compatible Vehicle Type Buses, Trucks, Base Formulation Conventional, SAE Viscosity Grade 15W-40, Standards Cummins CES 20085, Compatible Engine Type Natural Gas Engines, Features Advanced Wear Protection, Effective Detergency/Dispersancy, Optimized Ash Level, Shear Stability, Thermal Stability and Oxidation/Nitration Control, Flash Point 419 Degrees F, Pour Point -16.6 Degrees F, Viscosity Index 140