Hi,
I emailed Mazda Canada about transmission oil change and like to share what they said via email. Could anyone who had transmission flush share how was your experience afterwards?
Thank you for contacting Mazda Canada, in regards to your question, Mazda does not have a fluid exchange interval for the transmission. However is certainly will not hurt if you do change it. The drain and fill option only replaces about 30% of the fluid as the vehicle would be not running, if you do a fluid flush than you are replacing 100% of the fluid as the pressure while the vehicle is running will allow the fluid to flow through the machine, however it would be more costly this route. Either direction you choose as long as a Mazda dealer is completing the work than I would not be concerned about warranty at that point unless you are over the warranty period.
Thank you