Scotty, I have a 2017 Toyota Corolla (CVT) that has just over 60,000 miles(lots of highway mileage). I was inquiring about getting my fluid changed and noticed that my Toyota dealer offers to Flush my transmission and extends the transmission warranty another 30,000 miles. I am aware that it is unadvisable under regular circumstances to flush the transmission, furthermore I have had no issues with it I am just looking to do the maintenance needed for longevity.
—Thanks!
Scotty recommends that you not flush, but rather drain and refill. He discusses this here (and in many other places)
https://www.youtube.com/watch?v=OxKC2hs6T5w
DO NOT flush your transmission. Of course its in the dealers interest to cause long term damage on your transmission so you buy another one from them. Do a drain+fill.
