L200 3.2 Did 2011 engine oil

First I present my name is Javier and send greetings to all members of mechanics.
My query is because I have an L200 3.2 DID 2011 with 6,000km routes and have doubts about which it would be the best oil for this engine, the doubt arises because in the first 2000km with the factory oil the engine behaved very silently in idle both in cold and hot after having circulated on the route, when performing the first service, 2000km changed the oil and filter they place the drum oil. SEMISTINTIC 5W/40 and appear from that moment the engine to find it hot becomes extremely noisy as noise to valves, I call the agency where the service performs and they tell me that this noise of the robil can be and that over time it will leave, I clarify that I always load Diesel euro of Shell, with the doubt I change the oil again and place castrol magnatec 10w 40 semi -mininte. silent.
The manual asks for 10w 40 Castro/ Magnatec or a Diesel professional oil from Castrol, which in Argentina does not exist that oil should use since the engine is 3.2 turbo and would

like

Friend 5W-40 oil is very thin, I would put a 10W-40 independent of its brand, Mobil, Total, Shell, but always for oil tanker, you must also keep in mind that the new vehicle must still settle, and it is likely that it puts some noises but not in excess, but as I tell you with a 10W-40 for oil

Thanks Kikemec for the answer, I will try 10W 40 HX7 from Shell that I think is what the manual asks for

.