Normally i change my transmission fluid after hmmm, can't recall. Haha. Btw after watched this video, now i realize that it is important too other than just changing engine oil.
Btw here's the video.
If you use your car for daily basis and not for hard driving, don't bother to change the transmission oil frequently. It is just waste of money ( in a way ). Only for crazy maniac guy who enjoy revving the engine like no one else business are advise to change it when servicing the car =p .. Opsss. am i talking about me?