Delo 400 XSP SAE 5W-30 with ISOSYN Advanced Technology is a mixed-fleet engine oil recommended for naturally aspirated and turbocharged four-stroke diesel engines and four-stroke gasoline engines in which the API CK-4 or API SN service categories and SAE 5W-30 viscosity grade are recommended. It is formulated for engines operating under severe service. It is excellent for use in new, advanced engines developed to meet the latest emissions and reliability standards and in engines equipped with features like super-charging, turbo-charging, direct injection, higher power density, intercooling, full electronic management of fuel and emissions systems, exhaust selective catalytic reduction, exhaust gas recirculation, and exhaust particulate filters. Vocational and light duty fleets are often a mix between diesel and gasoline engines. This product is API SN and will meet the latest gasoline qualifications providing for one oil in a mixed vocational, short haul, or delivery fleet. Delo 400 XSP SAE 5W-30 with ISOSYN Advanced Technology is formulated for exceptional performance with many fuels, including low sulfur and ultra low sulfur diesel fuels, gasoline, most gasoline fuel blends, and many biofuel formulations. It is recommended for use in older engines in conditions when SAE 5W-30 viscosity grade is recommended, as well as in today's most modern low emission designs.