Shell Rotella® T4 Triple Protection 15W-40 is designed to provide hardworking protection that adapts to your driving conditions. With millions of miles of real world testing, Shell Rotella® T4 Triple Protection 15W-40 uses a proprietary formula exclusive to Shell. It is designed to protect under the most severe engine conditions found in modern low-emission engines and older hard working diesel engines. 3 Gallons/Case, Pail