i have been running a turbo d setup for about 4 months now.....my exhaust does not smoke much, it looks like regular exhaust fumes......i am not losing any oil, or coolant.....my coolant and oil are not mixing, my oil still looks pretty clean...i get some oily stuff in my exhaust though, which i dont know why...i'm thinking that maybe my turbo has a slight leak in the oil seal...its a garrett t3/t4....around my turbo and manifold are dry, i never see any oil....any help would be appreciated....thanks

below is a pic of my exhaust

 

i had a previous problem with too much crankcase pressure, and a poorly designed oil return.....i now have a vented catch can with a hose coming from the valve cover, and another from the black box in the back of the motor (former hose for pcv valve)....is this left over oil from before? I drove the car for 4 weeks so i think all the oil should be gone by now.