Engine oil PENNZOIL or OEM Mazda

Pennzoil Platinum or Ultra Platinum 5w20 and WIX 57060 (non XP) filter. I bought my truck with around 40k miles, it now has 90k and have had no issues with the motor changing the oil every 7500 per Blackstone's oil analysis I sent in not long after I took ownership.

Pennzoil Ultra Plat.

My dealership usually overfills my car and I do not think they use Toyota 0w-16 based on oil tests I have done. I do my own changes and switched from Toyota 0w-16 to Mobil 0w-16 and landed on Pennzoil presently and going forward.

But then we replaced it with a SkyActiv Mazda3 that used 0w20 and proceeded to have a good long history with that motor that had 0 oil consumption in 125K miles; I did all of the oil changes myself and it was always 4.5qts in/4.5qts out every 5k miles.

I run penzoil ultra platinum. I’ll spend the extra money to know that I might get a few more hours out of my gen.

Luckily modern oils are developed with this in mind. Costco/walmart/amazon oil is made by the same company, Warren oil. I think most people consider penzoil ultra platinum as one of the best.

I use Pennzoil Ultra Platinum 5w-30. It’s hasn’t failed me yet and I’ve done multiple track days

Pennzoil ultra platinum 5w-30 in my 2016. Will use it in wife's 2025 when warranty is done.

For [Naturally-Aspirated Skyactiv engines](https://en.wikipedia.org/wiki/SkyActiv), it is highly recommended that you use Mazda's own(Idemitsu) high molly GF-5 0w-20. [Arguably it is one of the best oil for skyactiv engines](http://www.cleanmpg.com/community/index.php?threads/45295/#post-357910).

I encountered something similar when I took my CE Turbo in for service a few weeks ago. The invoice said 0W20 and when I asked the service manual why they used the wrong oil they told me “oh our technicians know what oil to use, ignore that.” Needless to say I have zero confidence that the correct oil was used.