How Often?
Hi, We have 3 6cyl Mercedes diesel vans and are
wondering how often we should be adding oil? They are
2015, 16 & 17 vans. They have been dealer maintained
but the 2017 seems to be needing about a qt. per month.
They are now telling us this is normal? And, the other two
vans are not having this issue? Anyone have any insight
on this?