Since i do not see a thread for the "older" generation rdx i hope its ok if i post it here but by all means please move if needed. The questions i have are: 1. I have almost 29,000 miles on my rdx; at approx. how many miles should i have a coolant flush done and a transmission fluid change done? These things should be considered when replying: I live in a very hot during the summer state of Arizona which may or may not affect when these 2 items should be done. Thanks for any advice, info u can give.