Originally Posted by LittleBlue
Did this today, didn't have to jack up the car, slid on back from behind the passenger side rear tire and easily pumped out about 28 oz and and entire quart (32oz) went in! I used Red Line. I am wondering if I should pick up another quart as I think it needs to fill up to the lever of the plug hole. I think it would take another 1 1/2 oz as total capacity is 1.05 quarts (33.6oz). Not sure if its worth it ?
My diff took about 1.2 qts. According to Mike Miller, the E90 diff is under engineered, and the best defense against failure is oil changes. That would also include having it at the maximum correct level.