Engine oil OEM Mazda or OEM Subaru

I bought a new limited, last week. I did my first oil change yesterday and the amount of shit in it was crazy. Definitely do it.

I had a 2017 Forester with 175k miles on it and only used factor oil and never had any issues. I did not do any off road stuff and it was only a premium model, not a wilderness model. I don’t think it matters as long as you change it regularly.

Change the oil at a minimum, and do it regularly. Use a quality synthetic high mileage oil and change it again in a couple thousand miles, then change on regular 5k mile intervals.

Changed ours at 3k and will change again at 6k. After that it’s every 5k. Use Subaru oil and filters.

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.

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).

id put 17 at the okay point but any lower is not good - well my subaru would do about 18-17psi at idle so im sure alls fine

0w20 provides your engine with more wear protection .

There is minimal difference between 0w16 and 0w20, with 0w20 provided marginally better wear protection and 0w16 providing slightly better fuel efficiency since it's slightly thinner and provides less internal resistance.

Do not listen to them. I have a 2015 forester non turbo I used 5w30 and had all kinds of problems id get codes for over advanced timing on one bank and under advanced on the other, I was getting power loss going uphill, weird chattering noise.