what type of oil do I need to use for my C23O with 285k on it on 1998 Mercedes-Benz C230

what type of oil do I need to use for my C23O with 285k on it

Asked by for the 1998 Mercedes-Benz C230
4 answers
Mobile 0w-40 synthetic
5w-30 fully synthetic oil. always stick with what the manufacture recomended.
what type of oil have you been using all along???
factory spec is MB 229.3 5W40, 5W30, 0W30 or 0W40 in
full synthetic
use 20-50 good for tight engine compartment, synthetic are for newer models.