Engine oil OEM Mazda or OEM BMW

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).

Mazda says every 7500 miles for normal duty OCI, and I’ve done every 7500 miles since brand new on my 2014 3z.

It’s now at 187k flawless miles, consumes no oil *at all* (I’ve literally never had to add oil beaten changes, ever, what goes in comes out every time), runs like new, seems easily headed to 250k.

My supra BMW. Engine oil + filter, ATF + pan, 6 sparkplug, coolant flush and change = RM3840. Comparing like this i think yours should be reasonable + yours is in KD ???? i won’t worry for first time service at the shop.

If done properly, the vacuum works well. I used to do it on my E36 BMW for years. It does suck out pretty much all oil, I checked it by unscrewing the oil pan plug after the oil had been sucked out.

Zero need to get under the car, I loathe having to do it with my BMW stuff. With the Mrs' Audis I could literally change the oil in a tuxedo & not get a drop of oil on myself.

On my M135i F21 LCI, I always let the initial cold-start finish until the idle drops and then start driving while not going above 4.000 for the first ca. 5km and not giving full gas until the engine oil temperature is 72c or more.

Been doing that and till now no issues or leaks, the engine is running sweet.

I do a 5K oil change interval. I let it warm up for 5+ minutes every morning. Not necessarily because I'm intending to warm it up to operating temp but because that's just how my morning routine goes. I drive moderately and keep the RPM's below 3K and try to keep below 50% load on the engine, aka drive moderately.

Oem Bmw 5w30 longlife 04. I used this for 8 years in my high mileage n47 and sold that thing mint. Go with oem and don't waste a second more thinking about it. Enjoy the car. Just do the changes on time or early and it will be good.

Mazda’s OEM 5w30 is a little too thin for my blood considering the engine temps when driving hard, fine if you’re going to never redline the car

they only say you can do that with their Mazda-branded oil. That stuff tends to be expensive.