I agree with the oil. It is best to start with a base line. Never heard of the oil you identified.

Spend the extra bucks and get a good synthetic oil such as Mobil 1 or other brand. Check to confirm the correct weight of the oil. I have an SRT so it calls for 0-40W. You can get this changed at any good quality oil change location. I am lucky that I have a small idependent guy that does this and is a good mechanic that knows these as well as Mercedes. You should be able to run this oil for at least 6,000 miles. Make sure you put in a good filter and they put in the correct amount of oil as identified in your owner's manual.

Good luck with the new car.

Regards,
Jake80