I traded in my 2013 Maxima on a ex-daily rental 2019 Infiniti QX60 last July. The selling dealer did a pre-delivery oil change with semi-synthetic 0W20 of unknown brand, and a Fram PH6607 - no matter because I changed out the oil and filter within 150km to my choice of Penn Plat 0W20 and a Wix 51358XP filter - to establish my baseline of maintenance. What I noticed afterwards was that when checking the dipstick, it was hard to get a conclusive reading, the oil that clung to the dipstick was all over the place, one side was spotty, the other side smeared. I didn't take any photos, sorry.
I have driven the QX60 about 6500 km so I changed out the oil and filter last week, Penn Plat 0W20 and Wix 51358XP filter again. Since then, the dipstick is much easier to read, the oil line is solid and all the spottiness is gone. Another observation not related to the reading of the dipstick; The QX60 has the direct injected VQ35DD engine the oil stays pretty clean / light color - in contrast to other owners with this engine experiencing quick darkening after OC.
If all oils, regardless of brand, semi synthetic or otherwise are fully miscible, what might explain the easier dipstick reading now after clearing out the old oil?
Thanks,
Ken
I have driven the QX60 about 6500 km so I changed out the oil and filter last week, Penn Plat 0W20 and Wix 51358XP filter again. Since then, the dipstick is much easier to read, the oil line is solid and all the spottiness is gone. Another observation not related to the reading of the dipstick; The QX60 has the direct injected VQ35DD engine the oil stays pretty clean / light color - in contrast to other owners with this engine experiencing quick darkening after OC.
If all oils, regardless of brand, semi synthetic or otherwise are fully miscible, what might explain the easier dipstick reading now after clearing out the old oil?
Thanks,
Ken