We recommend 10k km intervals , or once a year . And at least every second service to include fuel filter , as N series engine fuel systems well known for HP fuel pump failures . Oil grade recommended from 5w30 to 10W60 , depends on engine condition . Some are clean and nice inside , so can take lighter oil , higher mileage and dirty ones 5w40 and so on . And not recommended at all ,dealers oil including Castrol . Mobil 1 , Liqui Moly are the ones we use .


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