Shell Rotella T1 30W Diesel Engine Oil is formulated to provide dependable lubrication and protection for compatible diesel engines and equipment. Its SAE 30 viscosity provides reliable lubrication at operating temperatures and helps protect engine components against wear, deposits, and oil breakdown during demanding service conditions. Designed for applications requiring a single-grade diesel engine oil, it is suitable for compatible commercial vehicles, equipment, and fleet maintenance applications. Supplied as a case of 3 one-gallon containers, it is convenient for professional service and maintenance operations.