I\u2019ve been running Amsoil signature 0w-20 in my FL5 for about 5k miles now. No track driving, just a mixture of city/highway. Some spirited pulls and rowing through the gears but mostly normal driving. Car is stock aside from PRL intake and custom tune. Had Blackstone do an oil analysis after the first 3k miles and all was well and below the average for all wear metals. I\u2019m in Florida so pretty hot climate overall. Very happy with the oil and will continue to use it at that viscosity
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).
Amsoil 5w-40 full saps
Im using amsoil. Change oil interval every 5k. Pag gipit, 6k kms.
I've been using Amsoil for mine since bought new
Amsoil OE for gasoline engines. Amsoil Turbo Truck for diesels. They are reasonably priced naman for their specs. They have the latest API rating din.
Amsoil Signature Series
Amsoil. Iba takbo.
Amsoil is overkill for ur car not worth it. Get Mobil 1 great oil do 5w30
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.
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