Mobil Super 10W-30 is formulated from high-quality base oils combined with modern performance additives to help provide long engine life and protect critical engine parts from lubricant related failures for up to 5000 miles or your vehicle's OEM recommended oil change interval, whichever is longer. It is a synthetic blend motor oil. It contains 15% extra cleaning additive versus Mobil Special 10W-30 to help protect against sludge and engine deposits. Additionally, pour point depressants and a viscosity index (VI) improver are included in the product, where required, to provide the optimum viscosity and fluidity across a broad range of temperatures. Mobil Super 10W-30 contains friction-reducing additives. The American Petroleum Institute (API) classifies this viscosity grade (10W-30) as "Resource Conserving" engine lubricants and these viscosity grades meet or exceed ILSAC GF-5 / API SN Plus. Those claims are backward compatible with earlier performance levels such as API SN, SM, SL, and SJ and previous ILSAC categories.