Mobil Delvac 1300 Super 15W-40 is a high-performance synthetic blend diesel engine oil that helps to extend engine life for diesel vehicles and equipment used in on and off-highway applications. * Mobil Delvac 1300 Super 15W-40 is a premium synthetic blend diesel engine oil that helps extend engine life for diesel vehicles and equipment * Developed with top Original Equipment Manufacturers for a wide range of heavy-duty applications and environments * Helps to deliver extended performance for up to 50% beyond OEM-recommended oil drain intervals* * Fully backward-compatible to deliver exceptional performance in newer and older heavy-duty engines, as well as gasoline engines with API SN specifications * Provides excellent soot and viscosity control as well as resistance to oil consumption and corrosive wear