I called my local Dodge dealership, since I had gotten a coupon via e-mail on a ATF drain plus filter change, and they tried to convince me to get a flush. The guy in the service area told me that if I flush it (it's more expensive to go that route) that I wouldn't have to change the filter. However, I simply had then drain it and install the new filter. As I waited I started talking to the guy in the parts area and he told me that the filter only goes 30,000 miles. I told him that it must go more because when their shop does a flush (every 30,000 miles) they don't chage the filter. He looked it up in the service book and said that Dodge recommends that the filter be changed every 30,ooo miles. So I am somewhat confused. Does the flush eliminate the recommendation to change the filter every 30,000 miles? If so, how many times can I flush it before I need to change the filter?