And here’s for the doubters like Dave
Data Spec from Castrol
Castrol Edge Titanium FST SN (not BMW M approved) the one used to be sold by Repco and the only 10w-60 available via retail until recently.
The famous or should that be infamous Castrol edge TWS (aka TWS Professional) approved by BMW M and used by BMW dealerships until they cancelled their contract with Castrol.
And the Castrol Edge Titanium FST Supercar - aka the newly branded TWS edge professional - approved by BMW M, but no longer sold through the dealerships
As you can see identical spec to the TWS Edge Professional.
And for those that still say don’t get worked up over oil, I am off to pick up a drum of fish and chips oils from my local fish and chip shop, I will happily do an oil change with this stuff for anyone with a BMW M motor - no guarantees however your motor won’t go boom!