From what I've learned the best oil for the Turbo of any model with direct injection which Mazda uses is Pennzoil Ultra Platinum.
I have run 0w20 in my 2013 Mazda 3 skyactiv for 244,000 miles. It doesn't burn or leak any oil between changes. I change the oil and filters every 5-6,000 miles.
If it says 5W-30 then the Hella synthetic should be fine. Except you can do all the other checks yourself. If they will use your parts that is ideal, get a Mazda filter and something like Pennzoil Ultra Platinum, Castrol or Mobil1 synthetic if you can get that.
Mine has had Mobil 1 Extended Performance 0w20 its entire life (aside from the factory fill) and I've had exactly zero oil consumption or lubrication related issues. It still gets nearly the same fuel economy and is as responsive and smooth as when I bought it, no matter if it's blasting up a steep mountain or baking in the heat of summer traffic.
I've seen good results online.
For 2 dollars more than the regular high mileage offering, I figured it was worth the risk.
I am doing a couple of oil changes with it (1k, 2.5k, 5k), and am hoping to see some evidence of it working on my 190k Mazda 3.
I use 5w-30 Valvoline Restore & Protect, I’m from the SoCal low desert region. Never had an issue, changed every 5,000 miles (nearly once a months cause I commute so much for work).
I personally am changing my own oil with full synthetic on my 23 2.5T every 6000 km or so. No need other than peace of mind for me. Doing it myself only takes 30 minutes and $35 in oil, filter and crush washer.
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 use Castrol EDGE Fully synthetic oil in my 2013 Mazda 3 skyactiv. It does burn a little but I did not have any issues.
I hated the castrol, I could tell the engine was louder with it compared to Pennzoil.
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This part for Mazda 3 is made around the world. We have reviews for engine oil manufacturers from countries such as: Japan, Germany, USA, Finland .
In March 2026, the ranking of engine oil for Mazda 3 on PartReview included 8 manufacturers. It is based on 34 reviews and 104 votes.
Last month, PartReview users preferred OEM Mazda. 25% of positive votes went to this manufacturer.
In second place: engine oil Castrol — 14%.
Third place: IDEMITSU with 11% of the votes.
In the overall ranking of engine oil, which aggregates opinions of owners of different car makes and models, these brands hold the following positions:
After seeing which engine oil owners of Mazda 3 prefer, check other popular parts for this car. In March 2026, leaders on PartReview were:
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