Shell Rotella T 15W40 Motor Oil, 1 Gal, with Advanced Soot Control. This premium, heavy-duty multigrade oil is designed for all-season use in diesel-powered or a mix of gasoline- and diesel-powered equipment. It meets or exceeds the warranty and service requirements of virtually all diesel and gasoline engine manufacturers, including newer and older engines. Recommended for highway and off-highway applications, especially where all-season use is desired. Protects against engine wear that occurs due to soot. Extends the life of your engine and can be used on a variety of vehicles. Use in passenger cars, light trucks, fork lifts and farm equipment to help protect engines.