I have a 2006 300C. Are the Chrysler Maintenance/Care/Oil Change Plans for oil changes every 3,000 miles and scheduled maintenance every 6,000 miles worth it? It looks like they are. Anyone with these plans or anyone knowing about them please give me your comments. I now have 3,000 miles on my car and the 3,000 mile oil change was free. Thanks, regards to all, Bob.