Dieselhead <126die...@gmail.com> writes: > You can use M1 or Amsoil for Diesel engines rated CF in any aluminum > head (OM60x) MB Diesel with extended change interval. You can use M1 > CF rated in iron head (OM61x, OM621, OM636) MB Diesels with good > results with normal change intervals. Some extended interval might be > possible, but you need to use oil analysis to determine soot levels to > arrive at change intervals. THe OM60x engines don't get as much soot > in the oil as the iron head engines do. ULSD fuels in theory should > produce less soot in the iron head Diesels too. > > The arguments come in whether the CI rated M1 oils still contain high > enough levels of some components to adequately protect older Diesels.
And where do you get CF rated M1 these days, or even CI? It's all CJ rated that I've seen, since that's what the new diesels want, even the conventional diesel oils e.g. Delo are now produced with a CJ rating, the CI blends are very hard to find because the stores pretty much just stock what new cars call for. Allan -- 1983 300D 1979 300SD _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
