I have oil in my fuel injection. there is oil in the hoses going from my turbo to the intercooler and intercooler to the throttle body, I was told it was normal to find oil in these places, I have drained the intercooler and cleaned the throttle body And the hoses. but what is excessive. and what is normal? I think that the seals are going out on the turbo but I am not sure. My cat was plugged up and I had it replaced. I also have black sooty smoke coming from the taillpipe And when the turbo spools up the car Bogs down. if I keep out of the turbo the car runs alright. The other thing is I get about 200 miles to the tank. when I first got the car I got close to 400 miles to the tank, I love my car and I do not want to get rid of it. if it is the turbo where can I get one that won't kill my bank account. it cost me almost a grand to have the ignition system replaced. any help would be appreciated. I know how things work but I am know mechanic.