aOa
First thing to blame is the Positive Crankcase Valve, PCV, You should buy the genuine PCV valve with same part no, Part No is the key for right valve spring tension,
Most of the mechanics don't know if this is faulty , engine start to consume too much oil, this is not due to engine wear out.
pcv valves are cheap and easy to replace, Only problem is to find them, I know where in my cars are , Don't know where in your model it should be.
My suggestion is to find it with the help of some knowledgeable mechanic and give it a go first, before blaming your car's engine.
OmRON