I have a 2008 TL (automatic) with 30K miles. Last time I took it for an oil change, the dealer told me that I will have to do a transmission flush at around 30K miles. I am very suspicious about this advice from a "stealer". I always thought that you shouldn't even touch the tranny before 50-60K miles. I could not find any information about the transmission flush interval in the owner's manual. Can anybody clarify this? How often does Acura recommend to do a transmission flush?