If thats the case its your problem.Curley and I might disagree about using 5w40 but 10w30 or really xw30 is NOT approved for a Mercedes diesel. In fact I bet it doesn't carry a C specification at all...
-Curt On Thursday, August 8, 2019, 12:54:21 AM EDT, Bob Rentfro via Mercedes <mercedes@okiebenz.com> wrote: Might be 10W-30. Not exactly sure cause I was using up two jugs I had sitting around. I reckon I’ll change the oil this weekend and pay attention. I suppose I should be more clear...ambient temps are 115F, engine temps are 95C to 105C. Maybe go old school Delo 15w-40... Bob R Sent from my iPhone > On Aug 7, 2019, at 8:46 PM, Curley McLain via Mercedes > <mercedes@okiebenz.com> wrote: > > You didn't say WHAT M1. You probably need a heavier weight. Are you running > 15w-50? Anything less , and your lifters will rattle at those temps. I > think this year (or quarter, as the case may be) the 15W-50 is in the truck > oil label. > > You maybe better off to start using amsoil or something else that is real > synthetic. M1 no longer is. > > Bob Rentfro via Mercedes wrote on 8/7/19 10:35 PM: >> My OM603 is making ridiculous lifter noise, at idle, after it reaches 95 to >> 105 degrees. I’m on my third oil change since I bought it. M1 is in it now. >> This noise is borderline embarrassing at a stop light. It didn’t start this >> until after the M1 was in it for about 200 miles or so. >> >> What’s the deal? >> >> Bob R > > > _______________________________________ > http://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 > _______________________________________ http://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 _______________________________________ http://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