Valvoline Professional Series Automatic Transmission Service Kit is designed to clean the entire automatic transmission when used with an automatic transmission exchange machine. A conventional transmission service only removes a small portion of the contaminated fluid. Only the fluid in the pan gets replaced, leaving contaminated fluid in the rest of the automatic transmission system. A conventional transmission service does not include a flush which can leave contaminants on the valve body and transmission cooler. Valvoline professional series automatic transmission flush safely removes deposits when used as directed. Valvoline professional series transmission protector, conditioner & sealer helps maintain shifting characteristics and protection from wear. It conditions seals to help prevent leaks and helps protect transmission fluid from high temperature breakdown. Valvoline professional series transmission protector, conditioner & sealer is compatible with all types of transmission fluid.