oil consumption
But if it eats a quart of oil every 1k after you put on 6-10k or so, then you got an unlucky motor. fwiw, the 6.2 consumes oil a lot more than the 5.5 but still is better than 1qt/1k. Even my Porsche isn't that hungry.
p.s., your motor is the same as the W211s, so the question applies to all current 5.5s.



