What is the difference between a transission filter change and a transmission flush?
A A transmission filter change only consists of removing the transmission pan, replacing the filter and gasket, and adding any lost fluid, which is only about 3 to 5 quarts. This is recommended for automatic transmissions every 30,000 miles. A transmission flush is done by connecting a machine to the vehicles transmission lines which removes all of the old transmission flush from the vehicle and installs new fluid. This is usually between 12 and 15 quarts. There are usually chemicals added before the flush that clean the transmission system thorougly, and conditioners added after the flush. The transmission flush is recommended for automatic transmissions every 30,000 miles.
