Engine oil OEM BMW or FUCHS

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.

4.5 L is the Ideal for Mazda 6 2.5 non turbo, I'm from the same country as you. I'm using fuchs titan 5w30 for two years and I recommend you do the same, I noticed quieter engine.

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.

I have a BMW e36 and it is standard practice to run an extra quart of oil at the track to prevent oil starvation and lifter tick. I have been doing it for years with dozens of track days along with many other people I know with no issues.

Fuchs Titan GT1 5w30.

Fuchs is excellent oil, run it in my nismo 370z cause it has specific esters that the cylinder liners need. Don't think it's necessary BMW engines but it is very good quality oil.

Original BMW 5w30 LL04. I'm sure other brands with the same specifications will be perfectly fine as well though.

I have oil analysis done in my TDI and a 10K OCI is a reach. The factory fill was almost depleted of wear additives at 5,500 miles. Fuchs Titan GT-1 was still serviceable at 7,000 miles, but I would not have carried it out beyond that.

Eu stau pe fuchs la 1.5 dci cu norma 0720. Nici nu se compara cu motul, pe mine m-a lasat rece