Recently had the car into a dealer for a service, has developed an oil leak since around the injectors on 1 and 4 where they enter the head. Ford dealer is getting it back in, but squirming about the warranty and claiming it's nothing they have done to cause it. I don't have a great deal of confidence in them, as when I picked the car up they'd forgotten to put a hose back on resulting in zero boost until they refitted it.

Only thing I can think of that would cause such a leak is overfilling it with oil, forcing the oil out of the top seals. It now seems to have stopped dripping which would back up my thoery if the level is back to what it should be.

Any thoughts? It's done 32k miles BTW.