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      12-10-2018, 01:29 PM   #36
kimiraikkonen
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Drives: 2008 E90 M3 6MT
Join Date: Jun 2016
Location: San Francisco

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Quote:
Originally Posted by Rajmun340 View Post
update :
After dealer added 1 quart oil level level was back a max one month ago.
Then over a period of a month I did 400 miles of ALL only highway drives.
after 150 miles level dropped from max to max-1/4 ,
after 250 miles level dropped to 1/2.
after 450 miles level was still at 1/2.
I then decided to drive it locally, so i drove the car on 4 local errands and at the end of the day, oil level reads : full !! wtf. Notice that the oil sensor was replaced and is new. Based on the last oil purge at the dealer i do know that ~1 quart oil was missing so it is not a sensor problem.
How many miles on your car? This sounds like blowby on the rings at sustained higher rpms on the freeway.
Appreciate 0