High-performance mineral motor oil for diesel engines. Motul Tekma Norma+ 15W40 is formulated based in the specially selected mineral oils and high-power additives developed for use in the diesel engines of old design. Motul Tekma Norma+ 15W40 is mainly designed for road vehicles, trucks (big-, mid-, and small-sized), tourist auto-trucks, light trucks, construction and agriculture vehicles, stationary engines, ship engines, generators... It meets and exceeds the below mentioned specifications: API CF-4/ CF/CE/ CD/SF MERCEDES-BENZ 228.1 (SAE 15W40)