TOTAL RUBIA OPTIMA 2100 XFE 10W-30 is developed for certain newest on-road diesel engines (post 2016) according to OEM recommendations.Due to its low High Temperature High Shear (HTHS) viscosity, TOTAL RUBIA OPTIMA 2100 XFE 10W-30 may not be suitable for older engines, so please consult the OEM.With its "low-SAPS" (low sulphated ash, phosphorus and sulphur) technology, TOTAL RUBIA OPTIMA 2100 XFE 10W-30 protects engines equipped with any kind of post-treatment systems, such as diesel particulate filters (DPFs).