Quote:
Originally Posted by SpeedyDad
US customers apparently complained of the groan and BMW added friction modifiers, which actually slightly reduce the performance of the diff.
No noise from my car after 100 miles since the change.
SAF-XJ is a synthetic, very high quality diff oil that's actually used in the E63s rear diff.
Based on all the research on differentials I have done these past few days, I'm sticking with the SAF-XJ.
|
Thank you very much! Learning is fun
The dealer expects the oil in by the end of this week so I hope to get the service early next week. I am at 1225 miles.
I got my inspection done today. NOT IMPRESSED. A bit crooked would you agree? They are going to replace that friggen sticker next week and better get it dead on straight lined up with the VIN plate. I cleaned off all the old glue myself. That is "deliberate" crooked. Not Oops Crooked.
Mike