"Toknow", you don't mention what model you have, but your owner's manual may say to change the oil at least once a year if driven less than 5K a year.

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1999 MB SL500 (110,000 mi)
2004 Volvo V70 2.5T (220,000 mi)
2014 Tesla Model S 85 (136,000 mi)
MBCA member