My P1-SC-1 has been sappy with oil on the bottom of it since day one of the install. Its not the drain plug. ATI said it may be the oil from the PVC hose that is installed on the end of the air filter. I took the Volute off of the SC and checked for oil where it ingests air. Behind the turbine looks fine so I dont think the seal is Blown. But there was oil in the bottom of the volute. I cant tell with certainty that its engine oil or green ATI oil. Has anyone experienced this on a Pro Charged vehicle or on their 2005 GT? Just feel underneath the blower and see...