Hi guys, since I didn’t find anything in the forum right away, I thought I’d open my own feed. The following situation: I bought an E65 735i from 2001. Running power currently 127tkm. Unfortunately, the thickness of the oil burns. I’m pretty sure that my valve shaft seals are through. KGE membranes are both OK. Now the question is: Is there anything else to check out? Should I use an oil additive and see if it improves or can be done right? “Where? I’ve already researched a little bit where you can let it be done, but I only found one in Berlin, which is a bit too far for me (Stuttgarter Raum). I hope someone can help me further.