I just got my 2010 Challenger R/T in November, and she has a little less than 1500 miles on her. While I was at our local Dodge/Jeep dealership (due to one of the two key fobs not working) I asked the service rep when I should bring her in for her first oil change. The Owner's Manual says 6000 miles/6 months, but the service rep recommended 3000 miles. He also said the oil should be changed every 3000 miles due to the "driving conditions" here in western Washington - mountains, very wet winters, etc. Given that I seldom go up into the mountains and the area I live in is pretty flat - plus the fact that my new baby is kept in the garage when she's not being driven - does 3000 miles make sense? Has anyone else in the Pacific Northwest been told this? Thanks in advance for any comments/ advice / opinions about this.