I have had a very different experience from other respondents. Changing the oil is no different for me than any other car I have had. Its a breeze, you need 8 qts of Moblil 1. Mercedes parts are EVERYWHERE on the internet. The drivetrain is proven and reliable. The engine should be good for at least 200,000 miles. If you do a site search you will find many owners with over 100,000 miles already. I have had great luck at Chrysler dealers with Crossfire- trained technicians in Burlington, VT and Melbourne, FL. These cars are fun and dependable. Good Luck!