Oil consumption

[ika]

Originally Posted by Tomaz

Try Amsoil 5-30 European blend. I am not a dealer or in any way affiliated with Amsoil. I've been using it for 20 years with excellent results. My previous 2001 X5 4.4 would burn 1/2 a quart between 10K changes. It's possible you could be losing oil through the turbos. You could burn a quart in 600 miles without seeing smoke.

what to do with turbos, how to repair ?

[Tomaz]

Originally Posted by ika

what to do with turbos, how to repair ?

You need to find out where the oil is escaping from first. The turbo(s) is only a suggestion and possibility. I still think changing oil brand and weight would be the first and easiest trial.

[ard]

Going from a 5-40 to a 5-30 will NOT lower consumption. I think that is a given.

Oil separators can cause that issue in other BMWs. Not sure how to diagnose. Pretty cheap to try I think.