The turbo charger in my car is leaking oil.
If the turbocharger is leaking oil and making smoke out of the exhaust, the turbo will need to be rebuilt or replaced, because the seal that has gone bad is internal to the turbocharger. If it is leaking oil outside the turbo it should just be a matter of replacing a seal or gasket. I would ask for help from one of the mechanics at YourMechanic to repair your turbocharger, so it will not leak oil anymore. An inspection of the oil leak is a good place to start.