I went to the dealership today to get an oil change. My 2013 RDX currently has 29,693 miles on it. The dealership wanted $149.00 a piece for all three which comes to a little under $450.00 for the total work. I did not want to do it today because I wanted to do a little research first. Does this seem a little high? Is it really required at 30,000 miles? I think I am going to wait until 40,000 miles to get it done. I did call around to a independent shop and they stated the differentials seemed high by about 50 dollars a piece, but the transmission is actually pretty good. They cannot work on the transmission because it requires certain expertise. Is this true also?