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I'm about ready for the 2nd oil change on my 2020 M340i. Just over 10k of mainly highway miles though it's been through Deals Gap a couple times, Tail of the Pig in Ark., and the mountains of Colo. It's never shown anything but full when I check. My dealership only uses 0-20 and I'm sticking with that. They told me they have never had an issue using that recommended oil.
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