Engine oil RED LINE or Pentosin

I use pentosin. Made for vws. Change it every 10k. Good quality filter and you'll be good

I use Red Line in everything. The M3 gets 15w-50.

With the redline, my car barely burns any oil, and significantly less is directed to my catch can. Night and day difference.

Redline is what I'm currently using for engine oil, shock fluid, and brake fluid.

Redline 5w-40. 6k mile intervals. Probably much nicer than what my little GTI needs, but I like supporting local businesses and it's amazing oil.

I use strictly Redline oils for all my fluids except premix. Engine oil is Redline 10w40.

Redline recommended 10w-40 Full Synthetic for my 1.8 solid lifter JH turbo application and the tech guy suggested modern synthetics don't cause seal leakage (like OG synths of 25 years ago) and holds up way better than the 40w rating in hot temps and protects much better when cold than even the current crop of Castrol 20/50 dino oil I was running. I swapped over the M81 to the same Redline oil and have not yet noticed any new oil leaks yet.

I use Pentosin in the e46, which I believe is BMW OEM supplier.

I use only Redline for all my oils-fluids. For engine oil, I have used 10w40 consistently.

Used to use Motul, now switched to Red Line for the higher zinc content and high heat stability. I rallycross my daily so high RPM and high heat.