High-performance, low-viscosity motor oils for heavy-duty work. These oils provide greater durability, reduce wear and corrosion, and are formulated to deliver superior fuel economy for modern generation heavy-duty diesel vehicles. This lubricant offers a fuel savings of 1.21% compared to a SAE 10W-40 motor oil. They are suitable for use in all Euro VI vehicles equipped with the latest generation after-treatment devices, such as DPF and SCR, using API FA-4 / MB 228.61 and Cummins CES 20087. These oils are formulated for use in on-road applications with diesel fuel sulfur content up to 15 ppm.