How often do you guys change that liquid gold?
I see so few oil related failures in MB engines that I consider this overkill. I hope you don't extend your oil change intervals to use Mobil 1. I change my wifes ML320's oil every 5k and currently am using a synthetic blend made by Valvoline at 10w30. The blend is about 50% more money than their top quality 20w50.
Owner 24 bay BSC
Bosch Master, ASE master L1
26 years MB technician