> On August 9, 2019 at 11:15 PM Curley McLain via Mercedes > <mercedes@okiebenz.com> wrote: > My OM603s did OK with the 10-40 stuff, back > when it was real M1 and had enough zinc. But I tried the 5W-40 and got > rattly lifters (not a problem with the iron heads, but still signals > that the oil is too thin.) Also, the oil consumption went way high > with the 5w-x stuff, but was back to nothing with the 15W-50.
I can recall people experiencing that with a change from 5W40 Delvac to 0W40 M1 euro. Shouldn't happen, but IIRC Marshall swore it did. If changing from xW50 to xW40 did it in one car, I'd think the lifters were on the way out in that car. If it happened with multiple cars, I'd be interested in finding out why. Mitch _______________________________________ 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
