Pulling in to traffic yesterday, I stomped on the gas. A 1/2 mile or so later I saw smoke coming from the engine compartment. I quickly pulled over, grabbed the fire extinguisher, and opened the cover. The smoke was comming from the passenger side exhaust area. I looked under the car and saw a oil slick on the frame behind the turbo. I figured I busted the oil line to the turbo. After closer inspection, I saw the oil was driping from the air filter housing! (See http://remus.rutgers.edu/~mxl/dmc/Ser6-08.JPG to get an idea of what I am talking about) It seems that with the turbos under full boost, the stock air box is too restrictive, and caused enuff vaccum to pull oil in through the PCV tube. I removed the air box, and filter. There was a oil slick on the filter where the PCV port is. I guess I never realy put much thought in to it, but I always assumed that the PCV tube hooked to the air box was to suck the gasses out of the crankcase. But then I got to thinking, where does the air come in to the crankcase? I did a quick search on the net and found a good page that explains in detail the PCV system (in general, not DMC specific) at http://www.njautosite.com/garage/encyclop/ency08b.html Based on that page, it would seem that the tube attached to the air box is where the air gets sucked in to the crank case. That kind of makes sense now, because the vaccum would need to come from someplace beyond the throttle plates. So, where does this vaccum come from? There is no PCV valve, so I guess it uses some other method to acheive the desired results. If the vaccum is taken from some place beyond the throttle plates, then when I go in to boost the crankcase will then become pressurized and in theory help push the oil out in to the air box! I guess I should also take a look at the hose routing diagram, but I did not have time to do that yesterday. Either way, anyone have a good explination on how the system work in the De Lorean, and where the vital parts are? Thanks, Marc