My 98 C230 is an early 98MY build. When I took delivery, I questioned the the FSS oil change intervals. "Mercedes ALWAYS knows what they're doing" was the reply. Well, I switched 'er over to Mobil 1 right away, AND continued with much more frequent changes.
And I'm glad I did, 'cause us Canucks sure as heck won't ever get any 150K-mile warranties. No chance of such a lawsuit succeeding here, as we have NO consumer rights or protections, ans civil actions like this one fail immediately.
1998 C230 "Black Betty"