Hi everyone. This is my first post on this wonderful site. I placed an order for a diamond white E550C over the weekend. The dealer said it will take approximately 10 weeks for delivery. For the time being I wanted to get some maintenance items for the car. Obviously I don't have the manual, but can someone confirm that the recommended engine oil is 0W-40? The parts department at MB said they carry 5W-40. I'm guessing either one will do? Thanks in advance.