So the great people at Pennzoil allowed me to participate in their UOA. The first was original oil fill (Quartz Ow20) in a 2021 KIA Niro with about 6k miles on the oil. The next change was with PUP Ow20 with a little over 6k miles on it. The original oil had alot of metals and contaminants which might be attributed to the car being new with break-in metals in the used sample. The PUP seemingly cleaned everything up. The two things that stuck out for me was the higher TBN on the PUP compared to the Quartz at the same OCI. Next was the mega wicked high Moly in the Quartz. Would this be a good example of why one should get the original oil fill out at, say 1k miles or so, and replace it? Just bought a 2022 KIA Niro for the kids and thinking about dumping the oil at 1 - 2k miles and filling with Mobil 1 (thanks to the massive miscalculation from the wonderful individual at Wally about a year ago)
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