I have used Mobil 1 0W40 for many years and have done changes at BMW intervals as outlined by OBC (12k to (15k). I am going to try Royal Purple HPS 5w30 with a high efficiency oil filter on my 06 4.8is

Royal Purple???

Numerous UOAs have show RP has DRASTIC shear rates. Search Royal Purple UOAs.

Federal Trade Commision stepped in and made them stop all their "we make the BEST oil" claims......

Truth in Advertising: BP v. Royal Purple

Hope you're planning 3k mile changes of that swill.

Royal Purple sucks big donkey dick. Don't waste your money or time.

I was NOT happy with the increase in oil consumption when I ran RP 5w30 in my N62 :(

even double :(

Thanks for the straight truth, looks I will stick with Mobil 1 0W40

I normally go with whatever is cheap in the 0w40 - 5w40 grade full synthetic and just change it twice / year and keep it full :)

Me too...but I only change it out once per year (usually less than 10k miles) ;)

^^^ Me too...
0W-40 Mobil 1 for the past many years, once a year whether it needs it or not, and still cooking after 96k miles and 13 years.
GL, mD

I've been using this one for almost 10 years now in different BMW's with minimal oil consumption. I just started using it my X5 and the engine sounds quieter compared to BMW oil that's been in it:

LIQUI MOLY - Motor Oils, Additives, Car Care - Products - Longtime High Tech 5W-30

Part Number Search 2039 - RM European Auto Parts

This one has been in my both 5 series for 10+ years as well and they like it:

LIQUI MOLY - Motor Oils, Additives, Car Care - Products - Synthoil Premium 5W-40

Part Number Search 2041 - RM European Auto Parts

I ended up going with the Valvoline 5w30 SYNpower Full Synthetic made for BMW, Mercedes, & Porsche. Meets LL-04 for BMW.

Just did some reading, and it says LL-04 should be used Overseas where they have lower Sulphur fuels.

WTF????
Clown at auto parts store says LL-04 exceeds LL-01 requirements.
Why did I not go with the Mobil 0w 40?