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Vehicle is a 2021 Mazda 3 2.5 M/T with 60,767 total miles. The oil is Pennzoil Ultra 0W20, and the filter was a Mazda OEM (Japan made by Roki). This is the third oil analysis over the last 15k miles, as I am keeping a close look at the Potassium and Sodium, which has increased gradually (if...

Vehicle is a 2021 Mazda 3 2.5 M/T with 55,600 total miles. The oil is Pennzoil Ultra 0W20, and the filter was a Mazda OEM (Japan made by Roki); this was the first non-Mazda dealer service. One interesting data point for this interval: around 2,700 miles were completed over 4 days on a cross...

Vehicle is a 2021 Mazda 3 2.5 M/T with 50,450 total miles. The oil is unknown 0W20, and the filter replaced was a Mazda OEM (Made in Thailand); all services to date performed by a Mazda dealer. The oil and filter were changed with Pennzoil Ultra 0W20 and a Mazda OEM filter (Japan) as DIY...

I am posting a UOA for my Lexus LS430 (3UZFE 4.3L V8) with 200k overall miles, with the last 5,285 miles on Pennzoil Platinum 5W30 and the OEM Toyota filter. I purchased the vehicle at 140k miles and the service history shows somewhat regular oil changes at the dealer with dino oil to that...