I believe this may have been brought up before. I am concern about the FSS of MB for changing oil about 10000-12000 miles. I may never wait that long on my newly owned 98-E320 (maybe M1 synthetic oil every 5000-6000 miles).
However, I am very curious on the success stories of MB owners - Would any one be interested in posting:
Your (MB type) oil change interval, oil type, mileage when bought and current mileage.
Hopefully it may help the give new MB owners some guideline.

Thanks,
Jeffrey P.