M3 burning oil?

[RealSanaii]

About 23k miles so far, I never had to add more oil in between service intervals but it does drop beyond half-mark but not to low.

[knifegun]

Originally Posted by GregW / Oregon

Are you saying you went 15k or so without the oil level going down? How often do you check it? All engines use a little oil. It would be extraordinary for yours to use less than a liter in 15k miles.

Have you changed your pattern of checking it? Obviously there could be a mechanical issue which would increase use, but it is unlikely. Carefully track the level and mileage so you will have a good reference.

Here is my oil service record (approximate):

1200 Break in service
~ 7500 Dinan Oil Service
~ 15000 Schedule Maintentance Oil Service
~ 21000 Dinan Oil Service

So before now, it has never dropped in a noticeable way. This time, it dropped about 1/4 of the way between the high and low marks. And I have seen this each time I've turned the car on so it is not due to parking on a hill or something environmental.