2012 Mercedes ML350 3.5L 60K miles. 10K OCI with Mobil 1 0w40. This time I put in 8 quarts of Castrol 5w40 and MB filter ( $25 from the dealer and $6 for a copper drain plug washer) yikes! My sister didn't give me much of notice to buy the filter else where and the dealer is only a mile down the road.













