Hello together, I have 2 questions about the Dacia Logan Express 1.6 MPI 85 The 15W-40 Moetor oil in the box is from the factory, so far I have driven about 9000 km and think about a 0W-30 or better a 0W-40 oil. Is it possible to exchange the 15W-40 with the oil change for the new oil without any problems? Has anyone had any experience with a 0W-30 or 0W-40 oil (e.g. with the Mobil 1) at the Dacia Logan or Logan Express? t for advice, since he has no ahung of what he sells.