After reading all these prior posts on oil changes, I really feel bad for those who have to rely on their dealership's discretion and quality of service for simple oil changes. Since I'm able to change it myself, I have FULL CONTROL over change intervals, type of oil and filters, correct amount, no appointments, no down car and having the satisfaction and confidence that the work was done properly. Might I suggest to those who are hesitant to do so on their own, try watching it done at your dealership, if allowed, or have it done one time at a local garage where you should have more leeway in observing. It's really a simple procedure if you are willing to give it a shot. By the way, I changed the oil in my C6 at the first and second 500 mile intervals and then every 1000 to 1500 thereafter. OVERKILL, you might say, but that is MY CHOICE. I will follow the same 500 mile intervals with my 2015 (still on constraints) but will probably extend to 2500-3000 mile intervals afterwards since I expect to do more mileage.