Guys / Girls -- I don't understand it-- why the worry over Mobil 1 and why even bend over backwards to get it or continue its use.
I have run Shell ROTELLA T for years in Corvettes, Ducati's, Harley V-Rods and now the two Crossfires we have. It is a 5W40 synthetic with an additive package that really keeps things clean. Now the best part -- Walmart carries it for approx $20.00 a gallon. That is $40.00 an oil change for us.
This oil thing makes people crazy with a manufacturer's endorsement (Mobil 1 specific ??) and / or the Mercedes specs thrown in.
I for one think we will be just fine with a quality name brand synthetic like ROTELLA T in the 5W40 range.