Cerma Automatic Transmission Treatment - Clean, Revitalize, and Protect Transmission. Restore Smooth Shifting, Stop Slippage Restores performance and fixes many transmission issues Stops slippage, hesitation and rough shifting in worn transmissions Eliminates most seal leaks and lowers operating temperatures in hard-working units Ideal for all uses including auto, diesel truck, motor homes and commercial vehicles Excellent for preventative maintenance and extends fluid life by up to four times