Hello! Need advice! I have a Galant station EA0,2.0 16V, petrol, Bj:99 with 101 tkm. Last oil change before about 6500 km with the timing belt. Motor oil 10W40 For a few days he starts knocking and nailing like an old diesel. If I start the engine and it is still cold, then there is nothing noticeable to hear. But the warmer he gets, the louder this noise will be. It should also be dependent on the number of wheels, because from 2500 rpm there is nothing more or hardly anything to hear. Is 10W40 the right oil. Does this motor have hydrostössel? I am grateful for any advice and advice. LG from Vienna, TOM