I am a first time Diesel owner, and I am pretty sure that I made a great decision on my 6.7 Turbo HD 2500 Big Horn. I love it. I was wondering do I really need to see my dealer for an oil change when my warning system is telling me to change my oil....see dealer? I bought my truck from the dealer with 9000 mi. on it. The dealer changed the oil when they got it. Only 2 days after I had it the warning system above the windshield was telling me to see a dealer to change my oil. I changed it myself, but the warning mssg will not go off. I tried to press the reset with no luck. I could not find this in the owners manual at all. Any advice for me?

Thanks,
Big Steve