iv had my current 250 for coming up to 15 months. i had it serviced last year and used 5w30 oil, but i was wondering if i could use 0w30 oil as its service will be due later this month or next month. obviously it will be low SAPs diesel oil because of the DPF. i have known different manufactures that use the same engines, such as Volvo and Ford, use different grades of oils in the engines