quote:Mercedes diesel owners should be using an oil which meets either the 229.3 or 229.5 spec, which are the Mercedes extended drain specs for BOTH gasoline and diesel engines. Currently, the only Mobil 1 sold in the US that meets these specs is the 0w40. Honestly, George...your off the cuff (and off the wall) statements really make me wonder.
Originally posted by GeorgeCLS: Again, for a diesel oil, TBN relevance, totally needed.. For a gasoline engine oil such as Mobil 1, Why?? Mercedes Benz diesel owners should be using a diesel oil, such as Mobil Delvac 1, Delvac 1300S, etc.. which have TBN's posted loud and clear.. Obviously, I missed something again.. George