just picked up the car yesterday - my first MB - my first diesel. can't wait to get into this...i fall squarely into the newbie category.

first thing i noticed is that the oil is low. i live in the northeast - is there a consensus pick for oil brand and type? in the diesel world will it matter that i have no idea what type of oil is in there now?

thanks, sorry for the painfully newbie question...
dd

ps. what a great forum...