Originally Posted by ECSTuning
Mr Sparkle - We've been carrying the Castrol branded TWS for quiet a while now, it's virtually the same fluid for a bit less and without the BMW part number on the bottle. There is a thread rolling around with fresh oil vs fresh oil Black Stone reports on the two, I believe they stated virtually the same oil as well.
Still waiting for proof on this. Anyone know if the Genuine BMW Edge Professional TWS vs the non-bmw Edge Professional TWS is actually the same oil?