The above happened to me with a landrover defender today, came into work with a lack of power, tested to see lol and the fucking turbo explodes haha. Tiny fragments all through the oil and oil shooting back through the induction system haha. Sorry for the spamage, sure this wont happen to you. If you can, try a known good turbo on your car to see if it clears up. But yeah try the simplest/cheapist options first, fueling.