Motorex Dextron Automatic Transmission Fluid Motorex Dextron Automatic transmission fluid is a synthetic ATF designed to be used in smaller motorcycle engines with automatic clutch gearboxes.Recommended by KTM for their 50cc automatic clutch motors worldwide as well as Husqvarna auto 50s. It has excellent performance in cold conditions and in respect of ageing.Protection against wear and corrosion. High shear stability. Excellent low-temperature properties. Excellent ageing behaviour. High thermal stability. Excellent shifting properties. Broad application spectrum. 1L Bottle.