Hello professional people , I have a Kia ceed sw ED year 08.2009 petrol and I want to change engine oil now and I’m kind of confused! Because when I bought the car was the engine oil 5w40 inside and when I bought the car I also changed oil at Freiewerkstatt and you also made 5w40 in and now I want to change oil again and I looked in user manual that the manufacturer writes and recommends 5w30! There is a picture below from the side of the operating system The question now should I take with the oil change 5w30 what the manufacturer recommends?? Or what the workshop has ever put in??? Why did the workshops 5w40 and not 5w30 recommend what the manufacturer recommend??? Did you not pay attention to it??? Sincerely