Engine oil OEM Mazda or OEM BMW

Just drive it. With these 0w20 oil is circulated immediately. My G20 330e does a cold start when accelerating the highway. The RPM limit is protecting your engine so even with a kickdown it won't go above 4k RPM and will shift very early.

i drive a g21 330D xdrive, I've been researching warm up procedures and people recommend letting the oil circulate for 30+ seconds then cruising in eco pro as the torque band is toned down and it changes gears as early as possible.

Depend on the oil grade that is in the engine.

In proper units that’s -15°C which is very close to the limit of a 10W- oil. I would let such car warm for 5 minutes easily.

If your car is running a 5w or 0w it will be fine to start driving in less than a minute. Which is just the time you need to remove the snow and ice from the windows, how convenient :P

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 do in my BMW. Oil is cheap compared to a re and re on a diesel no longer sold in country.

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).

bmw oem 5w30. n ai cum sa dai gres.

Many reputable rotary shops have tested numerous oils over the years, and agreed that the bearings do not have adequate protection with 5w-20 or 5w-30, especially if you track the car or do any spirited driving regularly.

Oil leak. Thats my G20, had to fill like 3 times oil myself during 30 000 km. Went to service and apparently they found two separate oil leaks