ATP AT-202 Protectant is a full synthetic ATF additive. It blends with ATF to improve it's performance properties, reducing torque converter shutter, clutch pack chatter and converting standard ATF types to a synthetic-blend fluid. The exclusive formula protects the transmission by reducing internal heat & wear, thermal breakdown, oxidation and varnish in all applications - from improving efficiency and life of a transmission in a daily driver, to severe duty applications such as commercial use, towing or high output applications.