If the exhaust side oil seal leaks on the turbo you will often see white or blue smoke, it burns enough to smoke but not to black ash.
You can clean the intake side of the turbo to see if large amounts of oil appear a day or two later by leaking out of the turbo. Depending on you turbo brand and style as some suggest your cdr valve could be the reason your intake tube or air cleaner box get oil in them. If your CDR does not feed into the intake manifold neck via the back like a NA engine you could unhook and plug the hole to the intake and run a hose from the cdr to a catch can for a couple of days. Then check for oil in the intake tube or air cleaner box.
Got it. It smokes, but I figured it was my WMO habit or timing. I actually swapped the CDR valve a couple weeks ago to see if that did anything. But yesterday after getting hay and pouring an embarrassing amount of oil in it to it just to get it full I was staring at the turbo and I had this idea. I'll look into it ASAP, thanks OIL BURNERS!!!