Chevron Delo 400 XLE SAE 15W-40 Heavy Duty Diesel Motor oil with ISOSYN Advanced Technology, is a premium synthetic blend long drain and mixed fleet engine oil recommended for naturally aspirated and turbocharged four-stroke diesel fuel engines and four-stroke gasoline engines in which the API CK-4 or SN service category and SAE 15W-40 viscosity grade are recommended. You can also expect it to provide high performance piston deposit control and turbocharger protection due to its superb oxidation performance. Its high performing detergent and dispersant additives allow for extended diesel engine component protection. Cylinders, pistons, rings and valve train components are well protected against wear and corrosion, providing optimum service life and minimal maintenance. It is backwards compatible with previous API oil service categories. Suitable for use in four-stroke gasoline and naturally aspirated turbocharged and modern electronically controlled/low emission diesel engines calling for an SAE 15W-40 heavy duty engine oil. Chevron oil allows users with a wide mix of engine brands to enjoy simplified inventory and dispensing systems that may contribute to saving money, space and time. Don't skimp on quality when it comes to the performance of your diesel engine. Put the best in to get the most out of your vehicle with Chevron Delo 400 XLE SAE 15W-40 with ISOSYN Advanced Technology. Check your automotive aisle for other diesel truck oil and motor oil gallon sizes.