pdeprey

I have an oil leak which is dropping onto the exhust manifolds after I shut it down and then it smokes real bad. Or it will do the same thing if I'm waiting in a drive through line after running out on the freeway. I have not fully examined it yet but is there a chronic place subarus leak? Where should I look? Does it sound like a rear seal or valve covers? Can the rear seal be done in the vehicle or does the engine need to be removed? Any advice would be appreciated?? Pat