Chevrolet Metro Automatic Transmission Filter helps in the proper health maintenance of the transmission system through cleaning the dirty particles in the transmission fluid. It helps to prevent elements getting into play that may block passage ways of fluids and thus affect the performance of a transmission. Most Chevrolet Metro models come with a compact internal filter, which is often mounted behind a transmission fluid pan that can be removed to access the filter. However, certain designs include filters that are less easily accessible and, therefore, manufacturers suggest that they are 'lifetime' items. For users who would like further safety, in-line transmission filters can be fitted to trap any other dangerous particle in the fluid flow while not limiting the flow of fluid. Also, some of their Metro vehicles may also employ spin-on albeit the external or the cartridge types to make access, and the changes more frequent. In total, the Automatic Transmission Filter is crucial for achieving the optimal performance and durability of the transmission of Chevrolet Metro automobiles.