After many cold starts and a couple of thousand miles the oil does thin out. This is why it will burn it faster. When the car starts cold, it runs rich with fuel and contaminates the oil a little.

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Benzmac:
Donnie Drummonds
1992 500E (very soon I hope
1981 280GE SWB
ASE CERTIFIED MASTER AUTO TECHNICIAN
SERVICE MANAGER FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM