Recently purchased an 08 Fusion w/ 55K miles. Original owner never changed the trans fluid, Valvoline oil change tech said fluid is looking rough. I was planning on bringing to dealership and having it drain/filled but I have read all the internet misinformation stating that if you don't change it at 30k just leave it alone or else will start with leaks, etc. I know the dealer/oil change place will never turn down $100+ easy service, so just wanted to get an actual answer from people who know what they are talking about before I do something stupid. TIA.