A transmission fluid change will only replace some of the existing fluid for new, clean fluid, a transmission fluid flush completely removes all old fluid and replaces it with new. Tichi mechanics recommend a complete flush approximately every 60,000 miles. However, this may vary depending on the vehicle you drive, how you drive, and where you drive.
During the procedure, all existing fluid is pumped out of the transmission system of your vehicle. Once drained, completely, brand new fluid is added, resulting in your transmission running much more efficiently and smoothly engine. Read the article to know more information.