The most oil I have ever put into it was about a quart at the 2500 mile mark. Other than that, just regular oil change intervals. However, this I feel is normal with MBs, as they are known to like oil. Just stick in a quart of sythetic oil, and away we go once again.

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-Justin

91 560 SEC AMG - other dogs dd
01 Honda S2000 - dogs dd
07 MB ML320 CDI - dd
16 Lexus IS250 - wifes dd

it's automatic.