100% synthetic lubricant, intended for diesel engines of high power heavy vehicles, of the EURO V and EURO VI types, subject to the most severe operating conditions. Due to its low ash, phosphorus and sulfur content (low-SAPS), it protects and guarantees the longevity of advanced exhaust gas treatment systems such as Diesel Particulate Filters (DPF), Exhaust Gas Recirculation (EGR) systems ) and nitrogen oxide catalytic converters (SCR NOx). It allows to achieve very long oil change intervals, even under severe conditions of use, maximizing vehicle availability and minimizing operating costs. Its low viscosity (grade 5W-30) allows to obtain fuel savings, without, however, compromising protection against engine wear. It fulfills, among others.