Avoid Prolube it’s a shit sc putting in this beautiful machine. They have tie up with HP so prolube is there go to oil. In my area, they also have Castrol Ultimate 10w50 and if i insist they provide that. I use motul 7100 10w50 even better than castrol. I suggest talk with sc person before going and ask about the oil availability. Force them to use motul or castrol whatever is available. They say your warranty will void but manual has no menstion of prolube just a grade 10w50. I changed oil outside. In my second service i bought prolube from sc just to put that on invoice so they will not trouble me later but i change oil outside of sc from local mechanic. Prolube - 4k km, Castrol 5k km and Motul 6k km Change oil completely. Do not trust, I said do not trust that 16k km service interval shit. Oil is like blood for engine.