"MAG 1 All Fleet diesel engine oils are specially formulated with the finest quality, hydrotreated, high viscosity index, paraffinic base oils and an advanced and rigorously-tested additive system to deliver top protection and performance. Protects heavy duty diesel and gasoline engines in critical performance areas High detergency and superior dispersancy, exceptional resistance to thermal degradation, superior anti-wear agents, higher starting TBN and highly reliable performance. U.S.A. Only available for sale in the continental United States. High detergency and superior dispersancy keep engines clean and soot suspended in the oil despite longer drain intervals and increased soot loading Exceptional resistance to thermal degradation , even under the most severe operating temperatures, prevents viscosity increase and the deposit formation and wear that can result Superior anti-wear agents extend engine life despite high operating temperatures and extended service intervals Higher starting TBN provides added protection against acid buildup that can cause rust and corrosion. Highly reliable performance over a wide range of temperatures, including severe cold Meets current API specifications"