I have a 2010 Challenger SE V6 with 120k miles on it. I want to get the transmission serviced. I called a local oil change place and they said they "flush" the transmission but don't change the filter. Thinking this is kinda not what I'm used to, I called the dealer and asked about a tranny service. Service guy said they don't change the filter either, just flush it. What's up with this? I'm old school. In my day, you changed out the filter and fluid. Anybody can tell me what's the scoop these days?