I have a Astra 1400 M reg, with an oil leak ??
from beneath the exhaust manifold on the engine.
The only possibility is from the cylinder head gasket.
Is this likely, and why would the oil leak from there ??? or is there a more serious underlying problem.
How many gaskets would I need to replace head gasket, presumeably everthing comes off with the head ?? So I would only need one.