Mobil Delvac MX 15W 40 is an extra high performance diesel engine oil that provides excellent lubrication of todaysdiesel engines promoting extended engine life. As a result this product meets or exceeds the specifications of virtually all major European and American engine manufacturers. This extra high performance has been proven in the field in a wide variety of industries applications and mixed fleets. The advanced chemistry of this product provides outstanding performance in both modern demanding low emission diesel engines and older diesel engines operating on low or high sulphur fuel. Mobil Delvac MX 15W 40 combines a blend of high performance base stocks with a progressive additive system to provide superior control of oil thickening due to soot build up and high temperatures as well as outstanding resistance to oxidation corrosion and high temperature deposits.