Here is an interesting web site, which discusses GM's equivalent of MB's FSS.
http://www.noria.com/Learn/ler34.html

My PERSONAL plan is to follow the factory service intervals, no more, no less, with all my vehicles, including the motorcycles.

I also expect to pay for proper maintenance and repair, and that eventually they will all wear out.

I also DON'T expect the long life of Larry Bible's cars, as Michigan climate isn't quite as kind to cars.

Enjoy 'em while you can.

BCingU, Jim

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'96 E300D 60k mi (wife's daily ride)
'95 Audi 90 120k mi
'92 GMC Suburban 139k mi
'85 300SD 234k mi (my daily ride)