Engine oil OEM Mazda or MOTUL

I'm using motul 5w40 8100 x clean and it's great on my m54b22. I'm loosing little to no oil between changes

Looks fine to me, oil is relatively cheap, forget all the mileage crap and change it sooner if you are uncomfortable with the way it looks. I change my oil every 2000 miles, or whenever I go on or do heavy riding. I also switched over to Motul 7100 simply because it’s red and I can see exactly when it starts to discolor. A motorcycle mechanic told me the number one reason for engine failure is dirty oil so I started changing it frequently.

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).

My 276k mile Xterra still trucks along with motul, every 3k miles.

changing the engine oil and using motuls 10w40 fixed it and getting mileage around 40.

I replaced the company oil to motul 10w40 engine oil, the changes weren't drastic but the milage and smoothness improved over the time

I've recently started using Motul 7100 10w40. Actually I'm due for my first change and should get under it today. It's the only pull I've ever used that actually made a noticable difference in operation. The esters bond and quiet the motor to a noticable audible level. It's designed for motorcycles though and with the unique properties of this ester based oil, I'm taking a chance with carbon build up, but the protection at higher rpms it provides gives me confidence under those conditions, which is where carbon is best loosened at too. Supposedly this burns fairly clean for a synthetic, but IDK. I'm changing at 3k miles to see how it looks. May or may not extend it out, but has felt great so far in this 135k mile motor.

I just use Kawasaki mineral oil or the Honda/Yamaha similar. Never had issues. Tried motul, liked the smell, same performance, more expensive, no point for me.

I blew up my first motor at the track on Motul.