Motul Automatic Transmission Cleaner This pre-drain automatic transmission cleaner designed to be used in all types of automatic transmissions, conventional with torque converters (At), with dual clutch transmission (Dct) or with continuously variable transmission (Cvt) in preparation for an oil change. Motul Automatic Transmission Cleaner effectively cleans deposits, sludge and varnish which appear on the automatic transmission components. The removed micro-particles are then evacuated during the process of oil drain leaving the transmission thoroughly clean. Features: Designed to be used in all types of automatic transmissions, conventional with torque converters (At), with dual clutch transmission (Dct) or with continuously variable transmission (Cvt) Cleans deposits, sludge and varnish on transmission components in preparation for an oil change