how did you plum for oil?
The drain needs to go into the pan above the oil level, or at least above the oil pump pickup. As long as the turbo itself is far enough above the oil level in the pan you can drain into the pan a little below the oil level. The thin section at the front of the motor is a good spot.
good luck

Its very easy and reliable to go off the block off plate above the oil filter and then pump the oil from the turbos back into oil pan. With a pump you can even pump back into the oil pan below the oil level, i.e. in through the drain or use the oil level sensor port.
Gary


