Motorex Cross Power 4T Oil - 10W50 - 1L. 171-401-101 Fully synthetic, high-performance oil designed for motocross and supercross 4-stroke motorcycles Optimum protection against engine wear under the most grueling, extreme temperature racing conditions Cross Power 4T 10W/50 Oils have been selected by KTM to be used in all of their racing 4-stroke motorcycles No slipping of the wet clutch Extreme temperature and shear protection